ed.term.c revision 167466
1/* $Header: /p/tcsh/cvsroot/tcsh/ed.term.c,v 1.36 2006/03/02 18:46:44 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. 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#include "sh.h" 34#ifndef WINNT_NATIVE 35 36RCSID("$tcsh: ed.term.c,v 1.36 2006/03/02 18:46:44 christos Exp $") 37 38#include "ed.h" 39 40int didsetty = 0; 41ttyperm_t ttylist = { 42 { 43#if defined(POSIX) || defined(TERMIO) 44 { "iflag:", ICRNL, (INLCR|IGNCR) }, 45 { "oflag:", (OPOST|ONLCR), ONLRET }, 46 { "cflag:", 0, 0 }, 47 { "lflag:", (ISIG|ICANON|ECHO|ECHOE|ECHOCTL|IEXTEN), 48 (NOFLSH|ECHONL|EXTPROC|FLUSHO|IDEFAULT) }, 49#else /* GSTTY */ 50 { "nrmal:", (ECHO|CRMOD|ANYP), (CBREAK|RAW|LCASE|VTDELAY|ALLDELAY) }, 51 { "local:", (LCRTBS|LCRTERA|LCRTKIL), (LPRTERA|LFLUSHO) }, 52#endif /* POSIX || TERMIO */ 53 { "chars:", 0, 0 }, 54 }, 55 { 56#if defined(POSIX) || defined(TERMIO) 57 { "iflag:", (INLCR|ICRNL), IGNCR }, 58 { "oflag:", (OPOST|ONLCR), ONLRET }, 59 { "cflag:", 0, 0 }, 60 { "lflag:", ISIG, 61 (NOFLSH|ICANON|ECHO|ECHOK|ECHONL|EXTPROC|IEXTEN|FLUSHO| 62 IDEFAULT) }, 63#else /* GSTTY */ 64 { "nrmal:", (CBREAK|CRMOD|ANYP), (RAW|ECHO|LCASE|VTDELAY|ALLDELAY) }, 65 { "local:", (LCRTBS|LCRTERA|LCRTKIL), (LPRTERA|LFLUSHO) }, 66#endif /* POSIX || TERMIO */ 67 { "chars:", (C_SH(C_MIN)|C_SH(C_TIME)|C_SH(C_SWTCH)|C_SH(C_DSWTCH)| 68 C_SH(C_WERASE)|C_SH(C_REPRINT)|C_SH(C_SUSP)|C_SH(C_DSUSP)| 69 C_SH(C_EOF)|C_SH(C_EOL)|C_SH(C_DISCARD)|C_SH(C_PGOFF)| 70 C_SH(C_KILL2)|C_SH(C_PAGE)|C_SH(C_STATUS)|C_SH(C_LNEXT)), 71 0 } 72 }, 73 { 74#if defined(POSIX) || defined(TERMIO) 75 { "iflag:", 0, IXON | IXOFF }, 76 { "oflag:", 0, 0 }, 77 { "cflag:", 0, 0 }, 78 { "lflag:", 0, ISIG | IEXTEN }, 79#else /* GSTTY */ 80 { "nrmal:", RAW, CBREAK }, 81 { "local:", 0, 0 }, 82#endif /* POSIX || TERMIO */ 83 { "chars:", 0, 0 }, 84 } 85}; 86 87static const struct tcshmodes { 88 const char *m_name; 89#ifdef SOLARIS2 90 unsigned long m_value; 91#else /* !SOLARIS2 */ 92 int m_value; 93#endif /* SOLARIS2 */ 94 int m_type; 95} modelist[] = { 96#if defined(POSIX) || defined(TERMIO) 97 98# ifdef IGNBRK 99 { "ignbrk", IGNBRK, M_INPUT }, 100# endif /* IGNBRK */ 101# ifdef BRKINT 102 { "brkint", BRKINT, M_INPUT }, 103# endif /* BRKINT */ 104# ifdef IGNPAR 105 { "ignpar", IGNPAR, M_INPUT }, 106# endif /* IGNPAR */ 107# ifdef PARMRK 108 { "parmrk", PARMRK, M_INPUT }, 109# endif /* PARMRK */ 110# ifdef INPCK 111 { "inpck", INPCK, M_INPUT }, 112# endif /* INPCK */ 113# ifdef ISTRIP 114 { "istrip", ISTRIP, M_INPUT }, 115# endif /* ISTRIP */ 116# ifdef INLCR 117 { "inlcr", INLCR, M_INPUT }, 118# endif /* INLCR */ 119# ifdef IGNCR 120 { "igncr", IGNCR, M_INPUT }, 121# endif /* IGNCR */ 122# ifdef ICRNL 123 { "icrnl", ICRNL, M_INPUT }, 124# endif /* ICRNL */ 125# ifdef IUCLC 126 { "iuclc", IUCLC, M_INPUT }, 127# endif /* IUCLC */ 128# ifdef IXON 129 { "ixon", IXON, M_INPUT }, 130# endif /* IXON */ 131# ifdef IXANY 132 { "ixany", IXANY, M_INPUT }, 133# endif /* IXANY */ 134# ifdef IXOFF 135 { "ixoff", IXOFF, M_INPUT }, 136# endif /* IXOFF */ 137# ifdef IMAXBEL 138 { "imaxbel",IMAXBEL,M_INPUT }, 139# endif /* IMAXBEL */ 140# ifdef IDELETE 141 { "idelete",IDELETE,M_INPUT }, 142# endif /* IDELETE */ 143 144# ifdef OPOST 145 { "opost", OPOST, M_OUTPUT }, 146# endif /* OPOST */ 147# ifdef OLCUC 148 { "olcuc", OLCUC, M_OUTPUT }, 149# endif /* OLCUC */ 150# ifdef ONLCR 151 { "onlcr", ONLCR, M_OUTPUT }, 152# endif /* ONLCR */ 153# ifdef OCRNL 154 { "ocrnl", OCRNL, M_OUTPUT }, 155# endif /* OCRNL */ 156# ifdef ONOCR 157 { "onocr", ONOCR, M_OUTPUT }, 158# endif /* ONOCR */ 159# ifdef ONOEOT 160 { "onoeot", ONOEOT, M_OUTPUT }, 161# endif /* ONOEOT */ 162# ifdef ONLRET 163 { "onlret", ONLRET, M_OUTPUT }, 164# endif /* ONLRET */ 165# ifdef OFILL 166 { "ofill", OFILL, M_OUTPUT }, 167# endif /* OFILL */ 168# ifdef OFDEL 169 { "ofdel", OFDEL, M_OUTPUT }, 170# endif /* OFDEL */ 171# ifdef NLDLY 172 { "nldly", NLDLY, M_OUTPUT }, 173# endif /* NLDLY */ 174# ifdef CRDLY 175 { "crdly", CRDLY, M_OUTPUT }, 176# endif /* CRDLY */ 177# ifdef TABDLY 178 { "tabdly", TABDLY, M_OUTPUT }, 179# endif /* TABDLY */ 180# ifdef XTABS 181 { "xtabs", XTABS, M_OUTPUT }, 182# endif /* XTABS */ 183# ifdef BSDLY 184 { "bsdly", BSDLY, M_OUTPUT }, 185# endif /* BSDLY */ 186# ifdef VTDLY 187 { "vtdly", VTDLY, M_OUTPUT }, 188# endif /* VTDLY */ 189# ifdef FFDLY 190 { "ffdly", FFDLY, M_OUTPUT }, 191# endif /* FFDLY */ 192# ifdef PAGEOUT 193 { "pageout",PAGEOUT,M_OUTPUT }, 194# endif /* PAGEOUT */ 195# ifdef WRAP 196 { "wrap", WRAP, M_OUTPUT }, 197# endif /* WRAP */ 198 199# ifdef CIGNORE 200 { "cignore",CIGNORE,M_CONTROL }, 201# endif /* CBAUD */ 202# ifdef CBAUD 203 { "cbaud", CBAUD, M_CONTROL }, 204# endif /* CBAUD */ 205# ifdef CSTOPB 206 { "cstopb", CSTOPB, M_CONTROL }, 207# endif /* CSTOPB */ 208# ifdef CREAD 209 { "cread", CREAD, M_CONTROL }, 210# endif /* CREAD */ 211# ifdef PARENB 212 { "parenb", PARENB, M_CONTROL }, 213# endif /* PARENB */ 214# ifdef PARODD 215 { "parodd", PARODD, M_CONTROL }, 216# endif /* PARODD */ 217# ifdef HUPCL 218 { "hupcl", HUPCL, M_CONTROL }, 219# endif /* HUPCL */ 220# ifdef CLOCAL 221 { "clocal", CLOCAL, M_CONTROL }, 222# endif /* CLOCAL */ 223# ifdef LOBLK 224 { "loblk", LOBLK, M_CONTROL }, 225# endif /* LOBLK */ 226# ifdef CIBAUD 227 { "cibaud", CIBAUD, M_CONTROL }, 228# endif /* CIBAUD */ 229# ifdef CRTSCTS 230# ifdef CCTS_OFLOW 231 { "ccts_oflow",CCTS_OFLOW,M_CONTROL }, 232# else 233 { "crtscts",CRTSCTS,M_CONTROL }, 234# endif /* CCTS_OFLOW */ 235# endif /* CRTSCTS */ 236# ifdef CRTS_IFLOW 237 { "crts_iflow",CRTS_IFLOW,M_CONTROL }, 238# endif /* CRTS_IFLOW */ 239# ifdef MDMBUF 240 { "mdmbuf", MDMBUF, M_CONTROL }, 241# endif /* MDMBUF */ 242# ifdef RCV1EN 243 { "rcv1en", RCV1EN, M_CONTROL }, 244# endif /* RCV1EN */ 245# ifdef XMT1EN 246 { "xmt1en", XMT1EN, M_CONTROL }, 247# endif /* XMT1EN */ 248 249# ifdef ISIG 250 { "isig", ISIG, M_LINED }, 251# endif /* ISIG */ 252# ifdef ICANON 253 { "icanon", ICANON, M_LINED }, 254# endif /* ICANON */ 255# ifdef XCASE 256 { "xcase", XCASE, M_LINED }, 257# endif /* XCASE */ 258# ifdef ECHO 259 { "echo", ECHO, M_LINED }, 260# endif /* ECHO */ 261# ifdef ECHOE 262 { "echoe", ECHOE, M_LINED }, 263# endif /* ECHOE */ 264# ifdef ECHOK 265 { "echok", ECHOK, M_LINED }, 266# endif /* ECHOK */ 267# ifdef ECHONL 268 { "echonl", ECHONL, M_LINED }, 269# endif /* ECHONL */ 270# ifdef NOFLSH 271 { "noflsh", NOFLSH, M_LINED }, 272# endif /* NOFLSH */ 273# ifdef TOSTOP 274 { "tostop", TOSTOP, M_LINED }, 275# endif /* TOSTOP */ 276# ifdef ECHOCTL 277 { "echoctl",ECHOCTL,M_LINED }, 278# endif /* ECHOCTL */ 279# ifdef ECHOPRT 280 { "echoprt",ECHOPRT,M_LINED }, 281# endif /* ECHOPRT */ 282# ifdef ECHOKE 283 { "echoke", ECHOKE, M_LINED }, 284# endif /* ECHOKE */ 285# ifdef DEFECHO 286 { "defecho",DEFECHO,M_LINED }, 287# endif /* DEFECHO */ 288# ifdef FLUSHO 289 { "flusho", FLUSHO, M_LINED }, 290# endif /* FLUSHO */ 291# ifdef PENDIN 292 { "pendin", PENDIN, M_LINED }, 293# endif /* PENDIN */ 294# ifdef IEXTEN 295 { "iexten", IEXTEN, M_LINED }, 296# endif /* IEXTEN */ 297# ifdef NOKERNINFO 298 { "nokerninfo",NOKERNINFO,M_LINED }, 299# endif /* NOKERNINFO */ 300# ifdef ALTWERASE 301 { "altwerase",ALTWERASE,M_LINED }, 302# endif /* ALTWERASE */ 303# ifdef EXTPROC 304 { "extproc",EXTPROC,M_LINED }, 305# endif /* EXTPROC */ 306# ifdef IDEFAULT 307 { "idefault",IDEFAULT,M_LINED }, 308# endif /* IDEFAULT */ 309 310#else /* GSTTY */ 311 312# ifdef TANDEM 313 { "tandem", TANDEM, M_CONTROL }, 314# endif /* TANDEM */ 315# ifdef CBREAK 316 { "cbreak", CBREAK, M_CONTROL }, 317# endif /* CBREAK */ 318# ifdef LCASE 319 { "lcase", LCASE, M_CONTROL }, 320# endif /* LCASE */ 321# ifdef ECHO 322 { "echo", ECHO, M_CONTROL }, 323# endif /* ECHO */ 324# ifdef CRMOD 325 { "crmod", CRMOD, M_CONTROL }, 326# endif /* CRMOD */ 327# ifdef RAW 328 { "raw", RAW, M_CONTROL }, 329# endif /* RAW */ 330# ifdef ODDP 331 { "oddp", ODDP, M_CONTROL }, 332# endif /* ODDP */ 333# ifdef EVENP 334 { "evenp", EVENP, M_CONTROL }, 335# endif /* EVENP */ 336# ifdef ANYP 337 { "anyp", ANYP, M_CONTROL }, 338# endif /* ANYP */ 339# ifdef NLDELAY 340 { "nldelay",NLDELAY,M_CONTROL }, 341# endif /* NLDELAY */ 342# ifdef TBDELAY 343 { "tbdelay",TBDELAY,M_CONTROL }, 344# endif /* TBDELAY */ 345# ifdef XTABS 346 { "xtabs", XTABS, M_CONTROL }, 347# endif /* XTABS */ 348# ifdef CRDELAY 349 { "crdelay",CRDELAY,M_CONTROL }, 350# endif /* CRDELAY */ 351# ifdef VTDELAY 352 { "vtdelay",VTDELAY,M_CONTROL }, 353# endif /* VTDELAY */ 354# ifdef BSDELAY 355 { "bsdelay",BSDELAY,M_CONTROL }, 356# endif /* BSDELAY */ 357# ifdef CRTBS 358 { "crtbs", CRTBS, M_CONTROL }, 359# endif /* CRTBS */ 360# ifdef PRTERA 361 { "prtera", PRTERA, M_CONTROL }, 362# endif /* PRTERA */ 363# ifdef CRTERA 364 { "crtera", CRTERA, M_CONTROL }, 365# endif /* CRTERA */ 366# ifdef TILDE 367 { "tilde", TILDE, M_CONTROL }, 368# endif /* TILDE */ 369# ifdef MDMBUF 370 { "mdmbuf", MDMBUF, M_CONTROL }, 371# endif /* MDMBUF */ 372# ifdef LITOUT 373 { "litout", LITOUT, M_CONTROL }, 374# endif /* LITOUT */ 375# ifdef TOSTOP 376 { "tostop", TOSTOP, M_CONTROL }, 377# endif /* TOSTOP */ 378# ifdef FLUSHO 379 { "flusho", FLUSHO, M_CONTROL }, 380# endif /* FLUSHO */ 381# ifdef NOHANG 382 { "nohang", NOHANG, M_CONTROL }, 383# endif /* NOHANG */ 384# ifdef L001000 385 { "l001000",L001000,M_CONTROL }, 386# endif /* L001000 */ 387# ifdef CRTKIL 388 { "crtkil", CRTKIL, M_CONTROL }, 389# endif /* CRTKIL */ 390# ifdef PASS8 391 { "pass8", PASS8, M_CONTROL }, 392# endif /* PASS8 */ 393# ifdef CTLECH 394 { "ctlech", CTLECH, M_CONTROL }, 395# endif /* CTLECH */ 396# ifdef PENDIN 397 { "pendin", PENDIN, M_CONTROL }, 398# endif /* PENDIN */ 399# ifdef DECCTQ 400 { "decctq", DECCTQ, M_CONTROL }, 401# endif /* DECCTQ */ 402# ifdef NOFLSH 403 { "noflsh", NOFLSH, M_CONTROL }, 404# endif /* NOFLSH */ 405 406# ifdef LCRTBS 407 { "lcrtbs", LCRTBS, M_LOCAL }, 408# endif /* LCRTBS */ 409# ifdef LPRTERA 410 { "lprtera",LPRTERA,M_LOCAL }, 411# endif /* LPRTERA */ 412# ifdef LCRTERA 413 { "lcrtera",LCRTERA,M_LOCAL }, 414# endif /* LCRTERA */ 415# ifdef LTILDE 416 { "ltilde", LTILDE, M_LOCAL }, 417# endif /* LTILDE */ 418# ifdef LMDMBUF 419 { "lmdmbuf",LMDMBUF,M_LOCAL }, 420# endif /* LMDMBUF */ 421# ifdef LLITOUT 422 { "llitout",LLITOUT,M_LOCAL }, 423# endif /* LLITOUT */ 424# ifdef LTOSTOP 425 { "ltostop",LTOSTOP,M_LOCAL }, 426# endif /* LTOSTOP */ 427# ifdef LFLUSHO 428 { "lflusho",LFLUSHO,M_LOCAL }, 429# endif /* LFLUSHO */ 430# ifdef LNOHANG 431 { "lnohang",LNOHANG,M_LOCAL }, 432# endif /* LNOHANG */ 433# ifdef LCRTKIL 434 { "lcrtkil",LCRTKIL,M_LOCAL }, 435# endif /* LCRTKIL */ 436# ifdef LPASS8 437 { "lpass8", LPASS8, M_LOCAL }, 438# endif /* LPASS8 */ 439# ifdef LCTLECH 440 { "lctlech",LCTLECH,M_LOCAL }, 441# endif /* LCTLECH */ 442# ifdef LPENDIN 443 { "lpendin",LPENDIN,M_LOCAL }, 444# endif /* LPENDIN */ 445# ifdef LDECCTQ 446 { "ldecctq",LDECCTQ,M_LOCAL }, 447# endif /* LDECCTQ */ 448# ifdef LNOFLSH 449 { "lnoflsh",LNOFLSH,M_LOCAL }, 450# endif /* LNOFLSH */ 451 452#endif /* POSIX || TERMIO */ 453# if defined(VINTR) || defined(TIOCGETC) 454 { "intr", C_SH(C_INTR), M_CHAR }, 455# endif /* VINTR */ 456# if defined(VQUIT) || defined(TIOCGETC) 457 { "quit", C_SH(C_QUIT), M_CHAR }, 458# endif /* VQUIT */ 459# if defined(VERASE) || defined(TIOCGETP) 460 { "erase", C_SH(C_ERASE), M_CHAR }, 461# endif /* VERASE */ 462# if defined(VKILL) || defined(TIOCGETP) 463 { "kill", C_SH(C_KILL), M_CHAR }, 464# endif /* VKILL */ 465# if defined(VEOF) || defined(TIOCGETC) 466 { "eof", C_SH(C_EOF), M_CHAR }, 467# endif /* VEOF */ 468# if defined(VEOL) 469 { "eol", C_SH(C_EOL), M_CHAR }, 470# endif /* VEOL */ 471# if defined(VEOL2) 472 { "eol2", C_SH(C_EOL2), M_CHAR }, 473# endif /* VEOL2 */ 474# if defined(VSWTCH) 475 { "swtch", C_SH(C_SWTCH), M_CHAR }, 476# endif /* VSWTCH */ 477# if defined(VDSWTCH) 478 { "dswtch", C_SH(C_DSWTCH), M_CHAR }, 479# endif /* VDSWTCH */ 480# if defined(VERASE2) 481 { "erase2", C_SH(C_ERASE2), M_CHAR }, 482# endif /* VERASE2 */ 483# if defined(VSTART) || defined(TIOCGETC) 484 { "start", C_SH(C_START), M_CHAR }, 485# endif /* VSTART */ 486# if defined(VSTOP) || defined(TIOCGETC) 487 { "stop", C_SH(C_STOP), M_CHAR }, 488# endif /* VSTOP */ 489# if defined(VWERASE) || defined(TIOCGLTC) 490 { "werase", C_SH(C_WERASE), M_CHAR }, 491# endif /* VWERASE */ 492# if defined(VSUSP) || defined(TIOCGLTC) 493 { "susp", C_SH(C_SUSP), M_CHAR }, 494# endif /* VSUSP */ 495# if defined(VDSUSP) || defined(TIOCGLTC) 496 { "dsusp", C_SH(C_DSUSP), M_CHAR }, 497# endif /* VDSUSP */ 498# if defined(VREPRINT) || defined(TIOCGLTC) 499 { "reprint", C_SH(C_REPRINT),M_CHAR }, 500# endif /* WREPRINT */ 501# if defined(VDISCARD) || defined(TIOCGLTC) 502 { "discard", C_SH(C_DISCARD),M_CHAR }, 503# endif /* VDISCARD */ 504# if defined(VLNEXT) || defined(TIOCGLTC) 505 { "lnext", C_SH(C_LNEXT), M_CHAR }, 506# endif /* VLNEXT */ 507# if defined(VSTATUS) || defined(TIOCGPAGE) 508 { "status", C_SH(C_STATUS), M_CHAR }, 509# endif /* VSTATUS */ 510# if defined(VPAGE) || defined(TIOCGPAGE) 511 { "page", C_SH(C_PAGE), M_CHAR }, 512# endif /* VPAGE */ 513# if defined(VPGOFF) || defined(TIOCGPAGE) 514 { "pgoff", C_SH(C_PGOFF), M_CHAR }, 515# endif /* VPGOFF */ 516# if defined(VKILL2) 517 { "kill2", C_SH(C_KILL2), M_CHAR }, 518# endif /* VKILL2 */ 519# if defined(VBRK) || defined(TIOCGETC) 520 { "brk", C_SH(C_BRK), M_CHAR }, 521# endif /* VBRK */ 522# if defined(VMIN) 523 { "min", C_SH(C_MIN), M_CHAR }, 524# endif /* VMIN */ 525# if defined(VTIME) 526 { "time", C_SH(C_TIME), M_CHAR }, 527# endif /* VTIME */ 528 { NULL, 0, -1 }, 529}; 530 531/* 532 * If EAGAIN and/or EWOULDBLOCK are defined, we can't just return -1 in all 533 * situations where ioctl() does. 534 * 535 * On AIX 4.1.5 (and presumably some other versions and OSes), as you 536 * perform the manual test suite in the README, if you 'bg' vi immediately 537 * after suspending it, all is well, but if you wait a few seconds, 538 * usually ioctl() will return -1, which previously caused tty_setty() to 539 * return -1, causing Rawmode() to return -1, causing Inputl() to return 540 * 0, causing bgetc() to return -1, causing readc() to set doneinp to 1, 541 * causing process() to break out of the main loop, causing tcsh to exit 542 * prematurely. 543 * 544 * If ioctl()'s errno is EAGAIN/EWOULDBLOCK ("Resource temporarily 545 * unavailable"), apparently the tty is being messed with by the OS and we 546 * need to try again. In my testing, ioctl() was never called more than 547 * twice in a row. 548 * 549 * -- Dan Harkless <dan@wave.eng.uci.edu> 550 * 551 * So, I retry all ioctl's in case others happen to fail too (christos) 552 */ 553 554#if defined(EAGAIN) && defined(EWOULDBLOCK) && (EWOULDBLOCK != EAGAIN) 555# define OKERROR(e) (((e) == EAGAIN) || ((e) == EWOULDBLOCK) || ((e) == EINTR)) 556#elif defined(EAGAIN) 557# define OKERROR(e) (((e) == EAGAIN) || ((e) == EINTR)) 558#elif defined(EWOULDBLOCK) 559# define OKERROR(e) (((e) == EWOULDBLOCK) || ((e) == EINTR)) 560#else 561# define OKERROR(e) ((e) == EINTR) 562#endif 563 564#ifdef __NetBSD__ 565#define KLUDGE (errno == ENOTTY && count < 10) 566#else 567#define KLUDGE 0 568#endif 569 570/* Retry a system call */ 571#define RETRY(x) \ 572do { \ 573 int count; \ 574 \ 575 for (count = 0;; count++) \ 576 if ((x) == -1) { \ 577 if (OKERROR(errno) || KLUDGE) \ 578 continue; \ 579 else \ 580 return -1; \ 581 } \ 582 else \ 583 break; \ 584} while (0) 585 586/*ARGSUSED*/ 587void 588dosetty(Char **v, struct command *t) 589{ 590 const struct tcshmodes *m; 591 char x, *d, *cmdname; 592 int aflag = 0; 593 Char *s; 594 int z = EX_IO; 595 596 USE(t); 597 cmdname = strsave(short2str(*v++)); 598 cleanup_push(cmdname, xfree); 599 setname(cmdname); 600 601 while (v && *v && v[0][0] == '-' && v[0][2] == '\0') 602 switch (v[0][1]) { 603 case 'a': 604 aflag++; 605 v++; 606 break; 607 case 'd': 608 v++; 609 z = ED_IO; 610 break; 611 case 'x': 612 v++; 613 z = EX_IO; 614 break; 615 case 'q': 616 v++; 617 z = QU_IO; 618 break; 619 default: 620 stderror(ERR_NAME | ERR_SYSTEM, short2str(v[0]), 621 CGETS(8, 1, "Unknown switch")); 622 break; 623 } 624 625 didsetty = 1; 626 if (!v || !*v) { 627 int i = -1; 628 int len = 0, st = 0, cu; 629 for (m = modelist; m->m_name; m++) { 630 if (m->m_type != i) { 631 xprintf("%s%s", i != -1 ? "\n" : "", 632 ttylist[z][m->m_type].t_name); 633 i = m->m_type; 634 st = len = strlen(ttylist[z][m->m_type].t_name); 635 } 636 637 x = (ttylist[z][i].t_setmask & m->m_value) ? '+' : '\0'; 638 x = (ttylist[z][i].t_clrmask & m->m_value) ? '-' : x; 639 640 if (x != '\0' || aflag) { 641 cu = strlen(m->m_name) + (x != '\0') + 1; 642 if (len + cu >= TermH) { 643 xprintf("\n%*s", st, ""); 644 len = st + cu; 645 } 646 else 647 len += cu; 648 if (x != '\0') 649 xprintf("%c%s ", x, m->m_name); 650 else 651 xprintf("%s ", m->m_name); 652 } 653 } 654 xputchar('\n'); 655 cleanup_until(cmdname); 656 return; 657 } 658 while (v && (s = *v++)) { 659 switch (*s) { 660 case '+': 661 case '-': 662 x = *s++; 663 break; 664 default: 665 x = '\0'; 666 break; 667 } 668 d = short2str(s); 669 for (m = modelist; m->m_name; m++) 670 if (strcmp(m->m_name, d) == 0) 671 break; 672 if (!m->m_name) 673 stderror(ERR_NAME | ERR_SYSTEM, d, CGETS(8, 2, "Invalid argument")); 674 675 switch (x) { 676 case '+': 677 ttylist[z][m->m_type].t_setmask |= m->m_value; 678 ttylist[z][m->m_type].t_clrmask &= ~m->m_value; 679 break; 680 case '-': 681 ttylist[z][m->m_type].t_setmask &= ~m->m_value; 682 ttylist[z][m->m_type].t_clrmask |= m->m_value; 683 break; 684 default: 685 ttylist[z][m->m_type].t_setmask &= ~m->m_value; 686 ttylist[z][m->m_type].t_clrmask &= ~m->m_value; 687 break; 688 } 689 } 690 cleanup_until(cmdname); 691} /* end dosetty */ 692 693int 694tty_getty(int fd, ttydata_t *td) 695{ 696#ifdef POSIX 697 RETRY(tcgetattr(fd, &td->d_t)); 698#else /* TERMIO || GSTTY */ 699# ifdef TERMIO 700 RETRY(ioctl(fd, TCGETA, (ioctl_t) &td->d_t)); 701# else /* GSTTY */ 702# ifdef TIOCGETP 703 RETRY(ioctl(fd, TIOCGETP, (ioctl_t) &td->d_t)); 704# endif /* TIOCGETP */ 705# ifdef TIOCGETC 706 RETRY(ioctl(fd, TIOCGETC, (ioctl_t) &td->d_tc)); 707# endif /* TIOCGETC */ 708# ifdef TIOCGPAGE 709 RETRY(ioctl(fd, TIOCGPAGE, (ioctl_t) &td->d_pc)); 710# endif /* TIOCGPAGE */ 711# ifdef TIOCLGET 712 RETRY(ioctl(fd, TIOCLGET, (ioctl_t) &td->d_lb)); 713# endif /* TIOCLGET */ 714# endif /* TERMIO */ 715#endif /* POSIX */ 716 717#ifdef TIOCGLTC 718 RETRY(ioctl(fd, TIOCGLTC, (ioctl_t) &td->d_ltc)); 719#endif /* TIOCGLTC */ 720 721 return 0; 722} 723 724int 725tty_setty(int fd, ttydata_t *td) 726{ 727#ifdef POSIX 728 RETRY(xtcsetattr(fd, TCSADRAIN, &td->d_t)); 729#else 730# ifdef TERMIO 731 RETRY(ioctl(fd, TCSETAW, (ioctl_t) &td->d_t)); 732# else 733# ifdef TIOCSETN 734 RETRY(ioctl(fd, TIOCSETN, (ioctl_t) &td->d_t)); 735# endif /* TIOCSETN */ 736# ifdef TIOCGETC 737 RETRY(ioctl(fd, TIOCSETC, (ioctl_t) &td->d_tc)); 738# endif /* TIOCGETC */ 739# ifdef TIOCGPAGE 740 RETRY(ioctl(fd, TIOCSPAGE, (ioctl_t) &td->d_pc)); 741# endif /* TIOCGPAGE */ 742# ifdef TIOCLGET 743 RETRY(ioctl(fd, TIOCLSET, (ioctl_t) &td->d_lb)); 744# endif /* TIOCLGET */ 745# endif /* TERMIO */ 746#endif /* POSIX */ 747 748#ifdef TIOCGLTC 749 RETRY(ioctl(fd, TIOCSLTC, (ioctl_t) &td->d_ltc)); 750#endif /* TIOCGLTC */ 751 752 return 0; 753} 754 755void 756tty_getchar(ttydata_t *td, unsigned char *s) 757{ 758#ifdef TIOCGLTC 759 { 760 struct ltchars *n = &td->d_ltc; 761 762 s[C_SUSP] = n->t_suspc; 763 s[C_DSUSP] = n->t_dsuspc; 764 s[C_REPRINT] = n->t_rprntc; 765 s[C_DISCARD] = n->t_flushc; 766 s[C_WERASE] = n->t_werasc; 767 s[C_LNEXT] = n->t_lnextc; 768 } 769#endif /* TIOCGLTC */ 770 771#if defined(POSIX) || defined(TERMIO) 772 { 773# ifdef POSIX 774 struct termios *n = &td->d_t; 775# else 776 struct termio *n = &td->d_t; 777# endif /* POSIX */ 778 779# ifdef VINTR 780 s[C_INTR] = n->c_cc[VINTR]; 781# endif /* VINTR */ 782# ifdef VQUIT 783 s[C_QUIT] = n->c_cc[VQUIT]; 784# endif /* VQUIT */ 785# ifdef VERASE 786 s[C_ERASE] = n->c_cc[VERASE]; 787# endif /* VERASE */ 788# ifdef VKILL 789 s[C_KILL] = n->c_cc[VKILL]; 790# endif /* VKILL */ 791# ifdef VEOF 792 s[C_EOF] = n->c_cc[VEOF]; 793# endif /* VEOF */ 794# ifdef VEOL 795 s[C_EOL] = n->c_cc[VEOL]; 796# endif /* VEOL */ 797# ifdef VEOL2 798 s[C_EOL2] = n->c_cc[VEOL2]; 799# endif /* VEOL2 */ 800# ifdef VSWTCH 801 s[C_SWTCH] = n->c_cc[VSWTCH]; 802# endif /* VSWTCH */ 803# ifdef VDSWTCH 804 s[C_DSWTCH] = n->c_cc[VDSWTCH]; 805# endif /* VDSWTCH */ 806# ifdef VERASE2 807 s[C_ERASE2] = n->c_cc[VERASE2]; 808# endif /* VERASE2 */ 809# ifdef VSTART 810 s[C_START] = n->c_cc[VSTART]; 811# endif /* VSTART */ 812# ifdef VSTOP 813 s[C_STOP] = n->c_cc[VSTOP]; 814# endif /* VSTOP */ 815# ifdef VWERASE 816 s[C_WERASE] = n->c_cc[VWERASE]; 817# endif /* VWERASE */ 818# ifdef VSUSP 819 s[C_SUSP] = n->c_cc[VSUSP]; 820# endif /* VSUSP */ 821# ifdef VDSUSP 822 s[C_DSUSP] = n->c_cc[VDSUSP]; 823# endif /* VDSUSP */ 824# ifdef VREPRINT 825 s[C_REPRINT] = n->c_cc[VREPRINT]; 826# endif /* WREPRINT */ 827# ifdef VDISCARD 828 s[C_DISCARD] = n->c_cc[VDISCARD]; 829# endif /* VDISCARD */ 830# ifdef VLNEXT 831 s[C_LNEXT] = n->c_cc[VLNEXT]; 832# endif /* VLNEXT */ 833# ifdef VSTATUS 834 s[C_STATUS] = n->c_cc[VSTATUS]; 835# endif /* VSTATUS */ 836# ifdef VPAGE 837 s[C_PAGE] = n->c_cc[VPAGE]; 838# endif /* VPAGE */ 839# ifdef VPGOFF 840 s[C_PGOFF] = n->c_cc[VPGOFF]; 841# endif /* VPGOFF */ 842# ifdef VKILL2 843 s[C_KILL2] = n->c_cc[VKILL2]; 844# endif /* KILL2 */ 845# ifdef VMIN 846 s[C_MIN] = n->c_cc[VMIN]; 847# endif /* VMIN */ 848# ifdef VTIME 849 s[C_TIME] = n->c_cc[VTIME]; 850# endif /* VTIME */ 851 } 852 853#else /* SGTTY */ 854 855# ifdef TIOCGPAGE 856 { 857 struct ttypagestat *n = &td->d_pc; 858 859 s[C_STATUS] = n->tps_statc; 860 s[C_PAGE] = n->tps_pagec; 861 s[C_PGOFF] = n->tps_pgoffc; 862 } 863# endif /* TIOCGPAGE */ 864 865# ifdef TIOCGETC 866 { 867 struct tchars *n = &td->d_tc; 868 869 s[C_INTR] = n->t_intrc; 870 s[C_QUIT] = n->t_quitc; 871 s[C_START] = n->t_startc; 872 s[C_STOP] = n->t_stopc; 873 s[C_EOF] = n->t_eofc; 874 s[C_BRK] = n->t_brkc; 875 } 876# endif /* TIOCGETC */ 877 878# ifdef TIOCGETP 879 { 880 struct sgttyb *n = &td->d_t; 881 882 s[C_ERASE] = n->sg_erase; 883 s[C_KILL] = n->sg_kill; 884 } 885# endif /* TIOCGETP */ 886#endif /* !POSIX || TERMIO */ 887 888} /* tty_getchar */ 889 890 891void 892tty_setchar(ttydata_t *td, unsigned char *s) 893{ 894#ifdef TIOCGLTC 895 { 896 struct ltchars *n = &td->d_ltc; 897 898 n->t_suspc = s[C_SUSP]; 899 n->t_dsuspc = s[C_DSUSP]; 900 n->t_rprntc = s[C_REPRINT]; 901 n->t_flushc = s[C_DISCARD]; 902 n->t_werasc = s[C_WERASE]; 903 n->t_lnextc = s[C_LNEXT]; 904 } 905#endif /* TIOCGLTC */ 906 907#if defined(POSIX) || defined(TERMIO) 908 { 909# ifdef POSIX 910 struct termios *n = &td->d_t; 911# else 912 struct termio *n = &td->d_t; 913# endif /* POSIX */ 914 915# ifdef VINTR 916 n->c_cc[VINTR] = s[C_INTR]; 917# endif /* VINTR */ 918# ifdef VQUIT 919 n->c_cc[VQUIT] = s[C_QUIT]; 920# endif /* VQUIT */ 921# ifdef VERASE 922 n->c_cc[VERASE] = s[C_ERASE]; 923# endif /* VERASE */ 924# ifdef VKILL 925 n->c_cc[VKILL] = s[C_KILL]; 926# endif /* VKILL */ 927# ifdef VEOF 928 n->c_cc[VEOF] = s[C_EOF]; 929# endif /* VEOF */ 930# ifdef VEOL 931 n->c_cc[VEOL] = s[C_EOL]; 932# endif /* VEOL */ 933# ifdef VEOL2 934 n->c_cc[VEOL2] = s[C_EOL2]; 935# endif /* VEOL2 */ 936# ifdef VSWTCH 937 n->c_cc[VSWTCH] = s[C_SWTCH]; 938# endif /* VSWTCH */ 939# ifdef VDSWTCH 940 n->c_cc[VDSWTCH] = s[C_DSWTCH]; 941# endif /* VDSWTCH */ 942# ifdef VERASE2 943 n->c_cc[VERASE2] = s[C_ERASE2]; 944# endif /* VERASE2 */ 945# ifdef VSTART 946 n->c_cc[VSTART] = s[C_START]; 947# endif /* VSTART */ 948# ifdef VSTOP 949 n->c_cc[VSTOP] = s[C_STOP]; 950# endif /* VSTOP */ 951# ifdef VWERASE 952 n->c_cc[VWERASE] = s[C_WERASE]; 953# endif /* VWERASE */ 954# ifdef VSUSP 955 n->c_cc[VSUSP] = s[C_SUSP]; 956# endif /* VSUSP */ 957# ifdef VDSUSP 958 n->c_cc[VDSUSP] = s[C_DSUSP]; 959# endif /* VDSUSP */ 960# ifdef VREPRINT 961 n->c_cc[VREPRINT] = s[C_REPRINT]; 962# endif /* WREPRINT */ 963# ifdef VDISCARD 964 n->c_cc[VDISCARD] = s[C_DISCARD]; 965# endif /* VDISCARD */ 966# ifdef VLNEXT 967 n->c_cc[VLNEXT] = s[C_LNEXT]; 968# endif /* VLNEXT */ 969# ifdef VSTATUS 970 n->c_cc[VSTATUS] = s[C_STATUS]; 971# endif /* VSTATUS */ 972# ifdef VPAGE 973 n->c_cc[VPAGE] = s[C_PAGE]; 974# endif /* VPAGE */ 975# ifdef VPGOFF 976 n->c_cc[VPGOFF] = s[C_PGOFF]; 977# endif /* VPGOFF */ 978# ifdef VKILL2 979 n->c_cc[VKILL2] = s[C_KILL2]; 980# endif /* VKILL2 */ 981# ifdef VMIN 982 n->c_cc[VMIN] = s[C_MIN]; 983# endif /* VMIN */ 984# ifdef VTIME 985 n->c_cc[VTIME] = s[C_TIME]; 986# endif /* VTIME */ 987 } 988 989#else /* GSTTY */ 990 991# ifdef TIOCGPAGE 992 { 993 struct ttypagestat *n = &td->d_pc; 994 995 n->tps_length = 0; 996 n->tps_lpos = 0; 997 n->tps_statc = s[C_STATUS]; 998 n->tps_pagec = s[C_PAGE]; 999 n->tps_pgoffc = s[C_PGOFF]; 1000 n->tps_flag = 0; 1001 } 1002# endif /* TIOCGPAGE */ 1003 1004# ifdef TIOCGETC 1005 { 1006 struct tchars *n = &td->d_tc; 1007 n->t_intrc = s[C_INTR]; 1008 n->t_quitc = s[C_QUIT]; 1009 n->t_startc = s[C_START]; 1010 n->t_stopc = s[C_STOP]; 1011 n->t_eofc = s[C_EOF]; 1012 n->t_brkc = s[C_BRK]; 1013 } 1014# endif /* TIOCGETC */ 1015 1016# ifdef TIOCGETP 1017 { 1018 struct sgttyb *n = &td->d_t; 1019 1020 n->sg_erase = s[C_ERASE]; 1021 n->sg_kill = s[C_KILL]; 1022 } 1023# endif /* TIOCGETP */ 1024#endif /* !POSIX || TERMIO */ 1025 1026} /* tty_setchar */ 1027 1028speed_t 1029tty_getspeed(ttydata_t *td) 1030{ 1031 speed_t spd; 1032 1033#ifdef POSIX 1034 if ((spd = cfgetispeed(&td->d_t)) == 0) 1035 spd = cfgetospeed(&td->d_t); 1036#else /* ! POSIX */ 1037# ifdef TERMIO 1038# ifdef CBAUD 1039 spd = td->d_t.c_cflag & CBAUD; 1040# else 1041 spd = 0; 1042# endif 1043# else /* SGTTY */ 1044 spd = td->d_t.sg_ispeed; 1045# endif /* TERMIO */ 1046#endif /* POSIX */ 1047 1048 return spd; 1049} /* end tty_getspeed */ 1050 1051int 1052tty_gettabs(ttydata_t *td) 1053{ 1054#if defined(POSIX) || defined(TERMIO) 1055 return ((td->d_t.c_oflag & TAB3) == TAB3) ? 0 : 1; 1056#else /* SGTTY */ 1057 return (td->d_t.sg_flags & XTABS) == XTABS ? 0 : 1; 1058#endif /* POSIX || TERMIO */ 1059} /* end tty_gettabs */ 1060 1061int 1062tty_geteightbit(ttydata_t *td) 1063{ 1064#if defined(POSIX) || defined(TERMIO) 1065 return (td->d_t.c_cflag & CSIZE) == CS8; 1066#else /* SGTTY */ 1067 return td->d_lb & (LPASS8 | LLITOUT); 1068#endif /* POSIX || TERMIO */ 1069} /* end tty_geteightbit */ 1070 1071int 1072tty_cooked_mode(ttydata_t *td) 1073{ 1074#if defined(POSIX) || defined(TERMIO) 1075 return (td->d_t.c_lflag & ICANON); 1076#else /* SGTTY */ 1077 return !(td->d_t.sg_flags & (RAW | CBREAK)); 1078#endif /* POSIX || TERMIO */ 1079} /* end tty_cooked_mode */ 1080 1081#ifdef _IBMR2 1082void 1083tty_setdisc(int fd, int dis) 1084{ 1085 static int edit_discipline = 0; 1086 static union txname tx_disc; 1087 extern char strPOSIX[]; 1088 1089 switch (dis) { 1090 case EX_IO: 1091 if (edit_discipline) { 1092 if (ioctl(fd, TXSETLD, (ioctl_t) & tx_disc) == -1) 1093 return; 1094 edit_discipline = 0; 1095 } 1096 return; 1097 1098 case ED_IO: 1099 tx_disc.tx_which = 0; 1100 if (ioctl(fd, TXGETLD, (ioctl_t) & tx_disc) == -1) 1101 return; 1102 if (strcmp(tx_disc.tx_name, strPOSIX) != 0) { 1103 edit_discipline = 1; 1104 if (ioctl(fd, TXSETLD, (ioctl_t) strPOSIX) == -1) 1105 return; 1106 } 1107 return; 1108 1109 default: 1110 return; 1111 } 1112} /* end tty_setdisc */ 1113#endif /* _IBMR2 */ 1114 1115#ifdef DEBUG_TTY 1116static void 1117tty_printchar(unsigned char *s) 1118{ 1119 struct tcshmodes *m; 1120 int i; 1121 1122 for (i = 0; i < C_NCC; i++) { 1123 for (m = modelist; m->m_name; m++) 1124 if (m->m_type == M_CHAR && C_SH(i) == m->m_value) 1125 break; 1126 if (m->m_name) 1127 xprintf("%s ^%c ", m->m_name, s[i] + 'A' - 1); 1128 if (i % 5 == 0) 1129 xputchar('\n'); 1130 } 1131 xputchar('\n'); 1132} 1133#endif /* DEBUG_TTY */ 1134#else /* WINNT_NATIVE */ 1135int 1136tty_cooked_mode(void *td) 1137{ 1138 return do_nt_check_cooked_mode(); 1139} 1140#endif /* !WINNT_NATIVE */ 1141