1 /* 2 * Copyright (c) 1983, 1993 3 * The Regents of the University of California. 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 * @(#)from: subr.c 8.1 (Berkeley) 6/4/93 34 * $FreeBSD: src/libexec/getty/subr.c,v 1.16.2.1 2001/05/12 10:16:51 kris Exp $ 35 * $DragonFly: src/libexec/getty/subr.c,v 1.3 2003/11/14 03:54:30 dillon Exp $ 36 */ 37 38 /* 39 * Melbourne getty. 40 */ 41 #define COMPAT_43 42 #ifdef DEBUG 43 #include <stdio.h> 44 #endif 45 #include <stdlib.h> 46 #include <string.h> 47 #include <termios.h> 48 #include <unistd.h> 49 #include <sys/ioctl.h> 50 #include <sys/param.h> 51 #include <sys/time.h> 52 #include <syslog.h> 53 54 #include "gettytab.h" 55 #include "pathnames.h" 56 #include "extern.h" 57 58 59 #ifdef COMPAT_43 60 static void compatflags (long); 61 #endif 62 63 /* 64 * Get a table entry. 65 */ 66 void 67 gettable(name, buf) 68 const char *name; 69 char *buf; 70 { 71 register struct gettystrs *sp; 72 register struct gettynums *np; 73 register struct gettyflags *fp; 74 long n; 75 int l; 76 char *p; 77 char *msg = NULL; 78 const char *dba[2]; 79 80 static int firsttime = 1; 81 82 dba[0] = _PATH_GETTYTAB; 83 dba[1] = 0; 84 85 if (firsttime) { 86 /* 87 * we need to strdup() anything in the strings array 88 * initially in order to simplify things later 89 */ 90 for (sp = gettystrs; sp->field; sp++) 91 if (sp->value != NULL) { 92 /* handle these ones more carefully */ 93 if (sp >= &gettystrs[4] && sp <= &gettystrs[6]) 94 l = 2; 95 else 96 l = strlen(sp->value) + 1; 97 if ((p = malloc(l)) != NULL) { 98 strncpy(p, sp->value, l); 99 p[l-1] = '\0'; 100 } 101 /* 102 * replace, even if NULL, else we'll 103 * have problems with free()ing static mem 104 */ 105 sp->value = p; 106 } 107 firsttime = 0; 108 } 109 110 switch (cgetent(&buf, (char **)dba, (char *)name)) { 111 case 1: 112 msg = "%s: couldn't resolve 'tc=' in gettytab '%s'"; 113 case 0: 114 break; 115 case -1: 116 msg = "%s: unknown gettytab entry '%s'"; 117 break; 118 case -2: 119 msg = "%s: retrieving gettytab entry '%s': %m"; 120 break; 121 case -3: 122 msg = "%s: recursive 'tc=' reference gettytab entry '%s'"; 123 break; 124 default: 125 msg = "%s: unexpected cgetent() error for entry '%s'"; 126 break; 127 } 128 129 if (msg != NULL) { 130 syslog(LOG_ERR, msg, "getty", name); 131 return; 132 } 133 134 for (sp = gettystrs; sp->field; sp++) { 135 if ((l = cgetstr(buf, (char*)sp->field, &p)) >= 0) { 136 if (sp->value) { 137 /* prefer existing value */ 138 if (strcmp(p, sp->value) != 0) 139 free(sp->value); 140 else { 141 free(p); 142 p = sp->value; 143 } 144 } 145 sp->value = p; 146 } else if (l == -1) { 147 free(sp->value); 148 sp->value = NULL; 149 } 150 } 151 152 for (np = gettynums; np->field; np++) { 153 if (cgetnum(buf, (char*)np->field, &n) == -1) 154 np->set = 0; 155 else { 156 np->set = 1; 157 np->value = n; 158 } 159 } 160 161 for (fp = gettyflags; fp->field; fp++) { 162 if (cgetcap(buf, (char *)fp->field, ':') == NULL) 163 fp->set = 0; 164 else { 165 fp->set = 1; 166 fp->value = 1 ^ fp->invrt; 167 } 168 } 169 170 #ifdef DEBUG 171 printf("name=\"%s\", buf=\"%s\"\r\n", name, buf); 172 for (sp = gettystrs; sp->field; sp++) 173 printf("cgetstr: %s=%s\r\n", sp->field, sp->value); 174 for (np = gettynums; np->field; np++) 175 printf("cgetnum: %s=%d\r\n", np->field, np->value); 176 for (fp = gettyflags; fp->field; fp++) 177 printf("cgetflags: %s='%c' set='%c'\r\n", fp->field, 178 fp->value + '0', fp->set + '0'); 179 #endif /* DEBUG */ 180 } 181 182 void 183 gendefaults() 184 { 185 register struct gettystrs *sp; 186 register struct gettynums *np; 187 register struct gettyflags *fp; 188 189 for (sp = gettystrs; sp->field; sp++) 190 if (sp->value) 191 sp->defalt = strdup(sp->value); 192 for (np = gettynums; np->field; np++) 193 if (np->set) 194 np->defalt = np->value; 195 for (fp = gettyflags; fp->field; fp++) 196 if (fp->set) 197 fp->defalt = fp->value; 198 else 199 fp->defalt = fp->invrt; 200 } 201 202 void 203 setdefaults() 204 { 205 register struct gettystrs *sp; 206 register struct gettynums *np; 207 register struct gettyflags *fp; 208 209 for (sp = gettystrs; sp->field; sp++) 210 if (!sp->value) 211 sp->value = !sp->defalt ? sp->defalt 212 : strdup(sp->defalt); 213 for (np = gettynums; np->field; np++) 214 if (!np->set) 215 np->value = np->defalt; 216 for (fp = gettyflags; fp->field; fp++) 217 if (!fp->set) 218 fp->value = fp->defalt; 219 } 220 221 static char ** 222 charnames[] = { 223 &ER, &KL, &IN, &QU, &XN, &XF, &ET, &BK, 224 &SU, &DS, &RP, &FL, &WE, &LN, 0 225 }; 226 227 static char * 228 charvars[] = { 229 &tmode.c_cc[VERASE], &tmode.c_cc[VKILL], &tmode.c_cc[VINTR], 230 &tmode.c_cc[VQUIT], &tmode.c_cc[VSTART], &tmode.c_cc[VSTOP], 231 &tmode.c_cc[VEOF], &tmode.c_cc[VEOL], &tmode.c_cc[VSUSP], 232 &tmode.c_cc[VDSUSP], &tmode.c_cc[VREPRINT], &tmode.c_cc[VDISCARD], 233 &tmode.c_cc[VWERASE], &tmode.c_cc[VLNEXT], 0 234 }; 235 236 void 237 setchars() 238 { 239 register int i; 240 register const char *p; 241 242 for (i = 0; charnames[i]; i++) { 243 p = *charnames[i]; 244 if (p && *p) 245 *charvars[i] = *p; 246 else 247 *charvars[i] = _POSIX_VDISABLE; 248 } 249 } 250 251 /* Macros to clear/set/test flags. */ 252 #define SET(t, f) (t) |= (f) 253 #define CLR(t, f) (t) &= ~(f) 254 #define ISSET(t, f) ((t) & (f)) 255 256 void 257 set_flags(n) 258 int n; 259 { 260 register tcflag_t iflag, oflag, cflag, lflag; 261 262 #ifdef COMPAT_43 263 switch (n) { 264 case 0: 265 if (F0set) { 266 compatflags(F0); 267 return; 268 } 269 break; 270 case 1: 271 if (F1set) { 272 compatflags(F1); 273 return; 274 } 275 break; 276 default: 277 if (F2set) { 278 compatflags(F2); 279 return; 280 } 281 break; 282 } 283 #endif 284 285 switch (n) { 286 case 0: 287 if (C0set && I0set && L0set && O0set) { 288 tmode.c_cflag = C0; 289 tmode.c_iflag = I0; 290 tmode.c_lflag = L0; 291 tmode.c_oflag = O0; 292 return; 293 } 294 break; 295 case 1: 296 if (C1set && I1set && L1set && O1set) { 297 tmode.c_cflag = C1; 298 tmode.c_iflag = I1; 299 tmode.c_lflag = L1; 300 tmode.c_oflag = O1; 301 return; 302 } 303 break; 304 default: 305 if (C2set && I2set && L2set && O2set) { 306 tmode.c_cflag = C2; 307 tmode.c_iflag = I2; 308 tmode.c_lflag = L2; 309 tmode.c_oflag = O2; 310 return; 311 } 312 break; 313 } 314 315 iflag = omode.c_iflag; 316 oflag = omode.c_oflag; 317 cflag = omode.c_cflag; 318 lflag = omode.c_lflag; 319 320 if (NP) { 321 CLR(cflag, CSIZE|PARENB); 322 SET(cflag, CS8); 323 CLR(iflag, ISTRIP|INPCK|IGNPAR); 324 } else if (AP || EP || OP) { 325 CLR(cflag, CSIZE); 326 SET(cflag, CS7|PARENB); 327 SET(iflag, ISTRIP); 328 if (OP && !EP) { 329 SET(iflag, INPCK|IGNPAR); 330 SET(cflag, PARODD); 331 if (AP) 332 CLR(iflag, INPCK); 333 } else if (EP && !OP) { 334 SET(iflag, INPCK|IGNPAR); 335 CLR(cflag, PARODD); 336 if (AP) 337 CLR(iflag, INPCK); 338 } else if (AP || (EP && OP)) { 339 CLR(iflag, INPCK|IGNPAR); 340 CLR(cflag, PARODD); 341 } 342 } /* else, leave as is */ 343 344 #if 0 345 if (UC) 346 f |= LCASE; 347 #endif 348 349 if (HC) 350 SET(cflag, HUPCL); 351 else 352 CLR(cflag, HUPCL); 353 354 if (MB) 355 SET(cflag, MDMBUF); 356 else 357 CLR(cflag, MDMBUF); 358 359 if (HW) 360 SET(cflag, CRTSCTS); 361 else 362 CLR(cflag, CRTSCTS); 363 364 if (NL) { 365 SET(iflag, ICRNL); 366 SET(oflag, ONLCR|OPOST); 367 } else { 368 CLR(iflag, ICRNL); 369 CLR(oflag, ONLCR); 370 } 371 372 if (!HT) 373 SET(oflag, OXTABS|OPOST); 374 else 375 CLR(oflag, OXTABS); 376 377 #ifdef XXX_DELAY 378 SET(f, delaybits()); 379 #endif 380 381 if (n == 1) { /* read mode flags */ 382 if (RW) { 383 iflag = 0; 384 CLR(oflag, OPOST); 385 CLR(cflag, CSIZE|PARENB); 386 SET(cflag, CS8); 387 lflag = 0; 388 } else { 389 CLR(lflag, ICANON); 390 } 391 goto out; 392 } 393 394 if (n == 0) 395 goto out; 396 397 #if 0 398 if (CB) 399 SET(f, CRTBS); 400 #endif 401 402 if (CE) 403 SET(lflag, ECHOE); 404 else 405 CLR(lflag, ECHOE); 406 407 if (CK) 408 SET(lflag, ECHOKE); 409 else 410 CLR(lflag, ECHOKE); 411 412 if (PE) 413 SET(lflag, ECHOPRT); 414 else 415 CLR(lflag, ECHOPRT); 416 417 if (EC) 418 SET(lflag, ECHO); 419 else 420 CLR(lflag, ECHO); 421 422 if (XC) 423 SET(lflag, ECHOCTL); 424 else 425 CLR(lflag, ECHOCTL); 426 427 if (DX) 428 SET(lflag, IXANY); 429 else 430 CLR(lflag, IXANY); 431 432 out: 433 tmode.c_iflag = iflag; 434 tmode.c_oflag = oflag; 435 tmode.c_cflag = cflag; 436 tmode.c_lflag = lflag; 437 } 438 439 #ifdef COMPAT_43 440 /* 441 * Old TTY => termios, snatched from <sys/kern/tty_compat.c> 442 */ 443 void 444 compatflags(flags) 445 register long flags; 446 { 447 register tcflag_t iflag, oflag, cflag, lflag; 448 449 iflag = BRKINT|ICRNL|IMAXBEL|IXON|IXANY; 450 oflag = OPOST|ONLCR|OXTABS; 451 cflag = CREAD; 452 lflag = ICANON|ISIG|IEXTEN; 453 454 if (ISSET(flags, TANDEM)) 455 SET(iflag, IXOFF); 456 else 457 CLR(iflag, IXOFF); 458 if (ISSET(flags, ECHO)) 459 SET(lflag, ECHO); 460 else 461 CLR(lflag, ECHO); 462 if (ISSET(flags, CRMOD)) { 463 SET(iflag, ICRNL); 464 SET(oflag, ONLCR); 465 } else { 466 CLR(iflag, ICRNL); 467 CLR(oflag, ONLCR); 468 } 469 if (ISSET(flags, XTABS)) 470 SET(oflag, OXTABS); 471 else 472 CLR(oflag, OXTABS); 473 474 475 if (ISSET(flags, RAW)) { 476 iflag &= IXOFF; 477 CLR(lflag, ISIG|ICANON|IEXTEN); 478 CLR(cflag, PARENB); 479 } else { 480 SET(iflag, BRKINT|IXON|IMAXBEL); 481 SET(lflag, ISIG|IEXTEN); 482 if (ISSET(flags, CBREAK)) 483 CLR(lflag, ICANON); 484 else 485 SET(lflag, ICANON); 486 switch (ISSET(flags, ANYP)) { 487 case 0: 488 CLR(cflag, PARENB); 489 break; 490 case ANYP: 491 SET(cflag, PARENB); 492 CLR(iflag, INPCK); 493 break; 494 case EVENP: 495 SET(cflag, PARENB); 496 SET(iflag, INPCK); 497 CLR(cflag, PARODD); 498 break; 499 case ODDP: 500 SET(cflag, PARENB); 501 SET(iflag, INPCK); 502 SET(cflag, PARODD); 503 break; 504 } 505 } 506 507 /* Nothing we can do with CRTBS. */ 508 if (ISSET(flags, PRTERA)) 509 SET(lflag, ECHOPRT); 510 else 511 CLR(lflag, ECHOPRT); 512 if (ISSET(flags, CRTERA)) 513 SET(lflag, ECHOE); 514 else 515 CLR(lflag, ECHOE); 516 /* Nothing we can do with TILDE. */ 517 if (ISSET(flags, MDMBUF)) 518 SET(cflag, MDMBUF); 519 else 520 CLR(cflag, MDMBUF); 521 if (ISSET(flags, NOHANG)) 522 CLR(cflag, HUPCL); 523 else 524 SET(cflag, HUPCL); 525 if (ISSET(flags, CRTKIL)) 526 SET(lflag, ECHOKE); 527 else 528 CLR(lflag, ECHOKE); 529 if (ISSET(flags, CTLECH)) 530 SET(lflag, ECHOCTL); 531 else 532 CLR(lflag, ECHOCTL); 533 if (!ISSET(flags, DECCTQ)) 534 SET(iflag, IXANY); 535 else 536 CLR(iflag, IXANY); 537 CLR(lflag, TOSTOP|FLUSHO|PENDIN|NOFLSH); 538 SET(lflag, ISSET(flags, TOSTOP|FLUSHO|PENDIN|NOFLSH)); 539 540 if (ISSET(flags, RAW|LITOUT|PASS8)) { 541 CLR(cflag, CSIZE); 542 SET(cflag, CS8); 543 if (!ISSET(flags, RAW|PASS8)) 544 SET(iflag, ISTRIP); 545 else 546 CLR(iflag, ISTRIP); 547 if (!ISSET(flags, RAW|LITOUT)) 548 SET(oflag, OPOST); 549 else 550 CLR(oflag, OPOST); 551 } else { 552 CLR(cflag, CSIZE); 553 SET(cflag, CS7); 554 SET(iflag, ISTRIP); 555 SET(oflag, OPOST); 556 } 557 558 tmode.c_iflag = iflag; 559 tmode.c_oflag = oflag; 560 tmode.c_cflag = cflag; 561 tmode.c_lflag = lflag; 562 } 563 #endif 564 565 #ifdef XXX_DELAY 566 struct delayval { 567 unsigned delay; /* delay in ms */ 568 int bits; 569 }; 570 571 /* 572 * below are random guesses, I can't be bothered checking 573 */ 574 575 struct delayval crdelay[] = { 576 { 1, CR1 }, 577 { 2, CR2 }, 578 { 3, CR3 }, 579 { 83, CR1 }, 580 { 166, CR2 }, 581 { 0, CR3 }, 582 }; 583 584 struct delayval nldelay[] = { 585 { 1, NL1 }, /* special, calculated */ 586 { 2, NL2 }, 587 { 3, NL3 }, 588 { 100, NL2 }, 589 { 0, NL3 }, 590 }; 591 592 struct delayval bsdelay[] = { 593 { 1, BS1 }, 594 { 0, 0 }, 595 }; 596 597 struct delayval ffdelay[] = { 598 { 1, FF1 }, 599 { 1750, FF1 }, 600 { 0, FF1 }, 601 }; 602 603 struct delayval tbdelay[] = { 604 { 1, TAB1 }, 605 { 2, TAB2 }, 606 { 3, XTABS }, /* this is expand tabs */ 607 { 100, TAB1 }, 608 { 0, TAB2 }, 609 }; 610 611 int 612 delaybits() 613 { 614 register int f; 615 616 f = adelay(CD, crdelay); 617 f |= adelay(ND, nldelay); 618 f |= adelay(FD, ffdelay); 619 f |= adelay(TD, tbdelay); 620 f |= adelay(BD, bsdelay); 621 return (f); 622 } 623 624 int 625 adelay(ms, dp) 626 register ms; 627 register struct delayval *dp; 628 { 629 if (ms == 0) 630 return (0); 631 while (dp->delay && ms > dp->delay) 632 dp++; 633 return (dp->bits); 634 } 635 #endif 636 637 char editedhost[MAXHOSTNAMELEN]; 638 639 void 640 edithost(pat) 641 register const char *pat; 642 { 643 register const char *host = HN; 644 register char *res = editedhost; 645 646 if (!pat) 647 pat = ""; 648 while (*pat) { 649 switch (*pat) { 650 651 case '#': 652 if (*host) 653 host++; 654 break; 655 656 case '@': 657 if (*host) 658 *res++ = *host++; 659 break; 660 661 default: 662 *res++ = *pat; 663 break; 664 665 } 666 if (res == &editedhost[sizeof editedhost - 1]) { 667 *res = '\0'; 668 return; 669 } 670 pat++; 671 } 672 if (*host) 673 strncpy(res, host, sizeof editedhost - (res - editedhost) - 1); 674 else 675 *res = '\0'; 676 editedhost[sizeof editedhost - 1] = '\0'; 677 } 678 679 static struct speedtab { 680 int speed; 681 int uxname; 682 } speedtab[] = { 683 { 50, B50 }, 684 { 75, B75 }, 685 { 110, B110 }, 686 { 134, B134 }, 687 { 150, B150 }, 688 { 200, B200 }, 689 { 300, B300 }, 690 { 600, B600 }, 691 { 1200, B1200 }, 692 { 1800, B1800 }, 693 { 2400, B2400 }, 694 { 4800, B4800 }, 695 { 9600, B9600 }, 696 { 19200, EXTA }, 697 { 19, EXTA }, /* for people who say 19.2K */ 698 { 38400, EXTB }, 699 { 38, EXTB }, 700 { 7200, EXTB }, /* alternative */ 701 { 57600, B57600 }, 702 { 115200, B115200 }, 703 { 230400, B230400 }, 704 { 0 } 705 }; 706 707 int 708 speed(val) 709 int val; 710 { 711 register struct speedtab *sp; 712 713 if (val <= B230400) 714 return (val); 715 716 for (sp = speedtab; sp->speed; sp++) 717 if (sp->speed == val) 718 return (sp->uxname); 719 720 return (B300); /* default in impossible cases */ 721 } 722 723 void 724 makeenv(env) 725 char *env[]; 726 { 727 static char termbuf[128] = "TERM="; 728 register char *p, *q; 729 register char **ep; 730 731 ep = env; 732 if (TT && *TT) { 733 strlcat(termbuf, TT, sizeof(termbuf)); 734 *ep++ = termbuf; 735 } 736 if ((p = EV)) { 737 q = p; 738 while ((q = strchr(q, ','))) { 739 *q++ = '\0'; 740 *ep++ = p; 741 p = q; 742 } 743 if (*p) 744 *ep++ = p; 745 } 746 *ep = (char *)0; 747 } 748 749 /* 750 * This speed select mechanism is written for the Develcon DATASWITCH. 751 * The Develcon sends a string of the form "B{speed}\n" at a predefined 752 * baud rate. This string indicates the user's actual speed. 753 * The routine below returns the terminal type mapped from derived speed. 754 */ 755 struct portselect { 756 const char *ps_baud; 757 const char *ps_type; 758 } portspeeds[] = { 759 { "B110", "std.110" }, 760 { "B134", "std.134" }, 761 { "B150", "std.150" }, 762 { "B300", "std.300" }, 763 { "B600", "std.600" }, 764 { "B1200", "std.1200" }, 765 { "B2400", "std.2400" }, 766 { "B4800", "std.4800" }, 767 { "B9600", "std.9600" }, 768 { "B19200", "std.19200" }, 769 { 0 } 770 }; 771 772 const char * 773 portselector() 774 { 775 char c, baud[20]; 776 const char *type = "default"; 777 register struct portselect *ps; 778 int len; 779 780 alarm(5*60); 781 for (len = 0; len < sizeof (baud) - 1; len++) { 782 if (read(STDIN_FILENO, &c, 1) <= 0) 783 break; 784 c &= 0177; 785 if (c == '\n' || c == '\r') 786 break; 787 if (c == 'B') 788 len = 0; /* in case of leading garbage */ 789 baud[len] = c; 790 } 791 baud[len] = '\0'; 792 for (ps = portspeeds; ps->ps_baud; ps++) 793 if (strcmp(ps->ps_baud, baud) == 0) { 794 type = ps->ps_type; 795 break; 796 } 797 sleep(2); /* wait for connection to complete */ 798 return (type); 799 } 800 801 /* 802 * This auto-baud speed select mechanism is written for the Micom 600 803 * portselector. Selection is done by looking at how the character '\r' 804 * is garbled at the different speeds. 805 */ 806 const char * 807 autobaud() 808 { 809 int rfds; 810 struct timeval timeout; 811 char c; 812 const char *type = "9600-baud"; 813 814 (void)tcflush(0, TCIOFLUSH); 815 rfds = 1 << 0; 816 timeout.tv_sec = 5; 817 timeout.tv_usec = 0; 818 if (select(32, (fd_set *)&rfds, (fd_set *)NULL, 819 (fd_set *)NULL, &timeout) <= 0) 820 return (type); 821 if (read(STDIN_FILENO, &c, sizeof(char)) != sizeof(char)) 822 return (type); 823 timeout.tv_sec = 0; 824 timeout.tv_usec = 20; 825 (void) select(32, (fd_set *)NULL, (fd_set *)NULL, 826 (fd_set *)NULL, &timeout); 827 (void)tcflush(0, TCIOFLUSH); 828 switch (c & 0377) { 829 830 case 0200: /* 300-baud */ 831 type = "300-baud"; 832 break; 833 834 case 0346: /* 1200-baud */ 835 type = "1200-baud"; 836 break; 837 838 case 015: /* 2400-baud */ 839 case 0215: 840 type = "2400-baud"; 841 break; 842 843 default: /* 4800-baud */ 844 type = "4800-baud"; 845 break; 846 847 case 0377: /* 9600-baud */ 848 type = "9600-baud"; 849 break; 850 } 851 return (type); 852 } 853