libexec/getty/subr.c

   1 /*      $NetBSD: subr.c,v 1.35 2013/08/11 16:36:30 dholland Exp $       */
   2
   3 /*
   4  * Copyright (c) 1983, 1993
   5  *      The Regents of the University of California.  All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  * 3. Neither the name of the University nor the names of its contributors
  16  *    may be used to endorse or promote products derived from this software
  17  *    without specific prior written permission.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  29  * SUCH DAMAGE.
  30  */
  31
  32 #include <sys/cdefs.h>
  33 #ifndef lint
  34 #if 0
  35 static char sccsid[] = "from: @(#)subr.c        8.1 (Berkeley) 6/4/93";
  36 #else
  37 __RCSID("$NetBSD: subr.c,v 1.35 2013/08/11 16:36:30 dholland Exp $");
  38 #endif
  39 #endif /* not lint */
  40
  41 /*
  42  * Melbourne getty.
  43  */
  44 #if !defined(__minix)
  45 #define COMPAT_43
  46 #endif /* !defined(__minix) */
  47 #include <sys/param.h>
  48 #include <sys/ioctl.h>
  49
  50 #include <stdlib.h>
  51 #include <string.h>
  52 #include <termios.h>
  53 #include <unistd.h>
  54 #include <poll.h>
  55 #include <util.h>
  56
  57 #include "extern.h"
  58 #include "gettytab.h"
  59 #include "pathnames.h"
  60
  61 extern  struct termios tmode, omode;
  62
  63 #if !defined(__minix)
  64 static void     compatflags(long);
  65 #endif /* !defined(__minix) */
  66
  67 /*
  68  * Get a table entry.
  69  */
  70 void
  71 gettable(const char *name, char *buf)
  72 {
  73         struct gettystrs *sp;
  74         struct gettynums *np;
  75         struct gettyflags *fp;
  76         long n;
  77         const char *dba[2];
  78         dba[0] = _PATH_GETTYTAB;
  79         dba[1] = NULL;
  80
  81         if (cgetent(&buf, dba, name) != 0)
  82                 return;
  83
  84         for (sp = gettystrs; sp->field; sp++)
  85                 (void)cgetstr(buf, sp->field, &sp->value);
  86         for (np = gettynums; np->field; np++) {
  87                 if (cgetnum(buf, np->field, &n) == -1)
  88                         np->set = 0;
  89                 else {
  90                         np->set = 1;
  91                         np->value = n;
  92                 }
  93         }
  94         for (fp = gettyflags; fp->field; fp++) {
  95                 if (cgetcap(buf, fp->field, ':') == NULL)
  96                         fp->set = 0;
  97                 else {
  98                         fp->set = 1;
  99                         fp->value = 1 ^ fp->invrt;
 100                 }
 101         }
 102 #ifdef DEBUG
 103         printf("name=\"%s\", buf=\"%s\"\n", name, buf);
 104         for (sp = gettystrs; sp->field; sp++)
 105                 printf("cgetstr: %s=%s\n", sp->field, sp->value);
 106         for (np = gettynums; np->field; np++)
 107                 printf("cgetnum: %s=%d\n", np->field, np->value);
 108         for (fp = gettyflags; fp->field; fp++)
 109                 printf("cgetflags: %s='%c' set='%c'\n", fp->field,
 110                        fp->value + '0', fp->set + '0');
 111         exit(1);
 112 #endif /* DEBUG */
 113 }
 114
 115 void
 116 gendefaults(void)
 117 {
 118         struct gettystrs *sp;
 119         struct gettynums *np;
 120         struct gettyflags *fp;
 121
 122         for (sp = gettystrs; sp->field; sp++)
 123                 if (sp->value)
 124                         sp->defalt = sp->value;
 125         for (np = gettynums; np->field; np++)
 126                 if (np->set)
 127                         np->defalt = np->value;
 128         for (fp = gettyflags; fp->field; fp++)
 129                 if (fp->set)
 130                         fp->defalt = fp->value;
 131                 else
 132                         fp->defalt = fp->invrt;
 133 }
 134
 135 void
 136 setdefaults(void)
 137 {
 138         struct gettystrs *sp;
 139         struct gettynums *np;
 140         struct gettyflags *fp;
 141
 142         for (sp = gettystrs; sp->field; sp++)
 143                 if (!sp->value)
 144                         sp->value = sp->defalt ? estrdup(sp->defalt) : NULL;
 145         for (np = gettynums; np->field; np++)
 146                 if (!np->set)
 147                         np->value = np->defalt;
 148         for (fp = gettyflags; fp->field; fp++)
 149                 if (!fp->set)
 150                         fp->value = fp->defalt;
 151 }
 152
 153 static char **
 154 charnames[] = {
 155         &ER, &KL, &IN, &QU, &XN, &XF, &ET, &BK,
 156         &SU, &DS, &RP, &FL, &WE, &LN, &ST, &B2, 0
 157 };
 158
 159 static cc_t *
 160 charvars[] = {
 161         &tmode.c_cc[VERASE], &tmode.c_cc[VKILL], &tmode.c_cc[VINTR],
 162         &tmode.c_cc[VQUIT], &tmode.c_cc[VSTART], &tmode.c_cc[VSTOP],
 163         &tmode.c_cc[VEOF], &tmode.c_cc[VEOL], &tmode.c_cc[VSUSP],
 164         &tmode.c_cc[VDSUSP], &tmode.c_cc[VREPRINT], &tmode.c_cc[VDISCARD],
 165         &tmode.c_cc[VWERASE], &tmode.c_cc[VLNEXT], &tmode.c_cc[VSTATUS],
 166         &tmode.c_cc[VEOL2], 0
 167 };
 168
 169 void
 170 setchars(void)
 171 {
 172         int i;
 173         char *p;
 174
 175         for (i = 0; charnames[i]; i++) {
 176                 p = *charnames[i];
 177                 if (p && *p)
 178                         *charvars[i] = *p;
 179                 else
 180                         *charvars[i] = _POSIX_VDISABLE;
 181         }
 182 }
 183
 184 /* Macros to clear/set/test flags. */
 185 #define SET(t, f)       (t) |= (f)
 186 #define CLR(t, f)       (t) &= ~(f)
 187 #define ISSET(t, f)     ((t) & (f))
 188
 189 void
 190 setflags(int n)
 191 {
 192         tcflag_t iflag, oflag, cflag, lflag;
 193
 194 #ifdef COMPAT_43
 195         switch (n) {
 196         case 0:
 197                 if (F0set) {
 198                         compatflags(F0);
 199                         return;
 200                 }
 201                 break;
 202         case 1:
 203                 if (F1set) {
 204                         compatflags(F1);
 205                         return;
 206                 }
 207                 break;
 208         default:
 209                 if (F2set) {
 210                         compatflags(F2);
 211                         return;
 212                 }
 213                 break;
 214         }
 215 #endif
 216
 217         switch (n) {
 218         case 0:
 219                 if (C0set && I0set && L0set && O0set) {
 220                         tmode.c_cflag = C0;
 221                         tmode.c_iflag = I0;
 222                         tmode.c_lflag = L0;
 223                         tmode.c_oflag = O0;
 224                         return;
 225                 }
 226                 break;
 227         case 1:
 228                 if (C1set && I1set && L1set && O1set) {
 229                         tmode.c_cflag = C1;
 230                         tmode.c_iflag = I1;
 231                         tmode.c_lflag = L1;
 232                         tmode.c_oflag = O1;
 233                         return;
 234                 }
 235                 break;
 236         default:
 237                 if (C2set && I2set && L2set && O2set) {
 238                         tmode.c_cflag = C2;
 239                         tmode.c_iflag = I2;
 240                         tmode.c_lflag = L2;
 241                         tmode.c_oflag = O2;
 242                         return;
 243                 }
 244                 break;
 245         }
 246
 247         iflag = omode.c_iflag;
 248         oflag = omode.c_oflag;
 249         cflag = omode.c_cflag;
 250         lflag = omode.c_lflag;
 251
 252         if (NP) {
 253                 CLR(cflag, CSIZE|PARENB);
 254                 SET(cflag, CS8);
 255                 CLR(iflag, ISTRIP|INPCK|IGNPAR);
 256         } else if (AP || EP || OP) {
 257                 CLR(cflag, CSIZE);
 258                 SET(cflag, CS7|PARENB);
 259                 SET(iflag, ISTRIP);
 260                 if (OP && !EP) {
 261                         SET(iflag, INPCK|IGNPAR);
 262                         SET(cflag, PARODD);
 263                         if (AP)
 264                                 CLR(iflag, INPCK);
 265                 } else if (EP && !OP) {
 266                         SET(iflag, INPCK|IGNPAR);
 267                         CLR(cflag, PARODD);
 268                         if (AP)
 269                                 CLR(iflag, INPCK);
 270                 } else if (AP || (EP && OP)) {
 271                         CLR(iflag, INPCK|IGNPAR);
 272                         CLR(cflag, PARODD);
 273                 }
 274         } /* else, leave as is */
 275
 276 #if 0
 277         if (UC)
 278                 f |= LCASE;
 279 #endif
 280
 281         if (HC)
 282                 SET(cflag, HUPCL);
 283         else
 284                 CLR(cflag, HUPCL);
 285
 286 #if !defined(__minix)
 287         if (MB)
 288                 SET(cflag, MDMBUF);
 289         else
 290                 CLR(cflag, MDMBUF);
 291 #endif /* !defined(__minix) */
 292
 293         if (NL) {
 294                 SET(iflag, ICRNL);
 295                 SET(oflag, ONLCR|OPOST);
 296         } else {
 297                 CLR(iflag, ICRNL);
 298                 CLR(oflag, ONLCR);
 299         }
 300
 301 #if !defined(__minix)
 302         if (!HT)
 303                 SET(oflag, OXTABS|OPOST);
 304         else
 305                 CLR(oflag, OXTABS);
 306 #endif /* !defined(__minix) */
 307
 308 #ifdef XXX_DELAY
 309         SET(f, delaybits());
 310 #endif
 311
 312         if (n == 1) {           /* read mode flags */
 313                 if (RW) {
 314                         iflag = 0;
 315                         CLR(oflag, OPOST);
 316                         CLR(cflag, CSIZE|PARENB);
 317                         SET(cflag, CS8);
 318                         lflag = 0;
 319                 } else {
 320                         CLR(lflag, ICANON);
 321                 }
 322                 goto out;
 323         }
 324
 325         if (n == 0)
 326                 goto out;
 327
 328 #if 0
 329         if (CB)
 330                 SET(f, CRTBS);
 331 #endif
 332
 333         if (CE)
 334                 SET(lflag, ECHOE);
 335         else
 336                 CLR(lflag, ECHOE);
 337
 338 #if !defined(__minix)
 339         if (CK)
 340                 SET(lflag, ECHOKE);
 341         else
 342                 CLR(lflag, ECHOKE);
 343
 344         if (PE)
 345                 SET(lflag, ECHOPRT);
 346         else
 347                 CLR(lflag, ECHOPRT);
 348 #endif /* !defined(__minix) */
 349
 350         if (EC)
 351                 SET(lflag, ECHO);
 352         else
 353                 CLR(lflag, ECHO);
 354
 355 #if !defined(__minix)
 356         if (XC)
 357                 SET(lflag, ECHOCTL);
 358         else
 359                 CLR(lflag, ECHOCTL);
 360 #endif /* !defined(__minix) */
 361
 362         if (DX)
 363                 SET(lflag, IXANY);
 364         else
 365                 CLR(lflag, IXANY);
 366
 367 out:
 368         tmode.c_iflag = iflag;
 369         tmode.c_oflag = oflag;
 370         tmode.c_cflag = cflag;
 371         tmode.c_lflag = lflag;
 372 }
 373
 374 #ifdef COMPAT_43
 375 /*
 376  * Old TTY => termios, snatched from <sys/kern/tty_compat.c>
 377  */
 378 void
 379 compatflags(long flags)
 380 {
 381         tcflag_t iflag, oflag, cflag, lflag;
 382
 383         iflag = BRKINT|ICRNL|IMAXBEL|IXON|IXANY;
 384         oflag = OPOST|ONLCR|OXTABS;
 385         cflag = CREAD;
 386         lflag = ICANON|ISIG|IEXTEN;
 387
 388         if (ISSET(flags, TANDEM))
 389                 SET(iflag, IXOFF);
 390         else
 391                 CLR(iflag, IXOFF);
 392         if (ISSET(flags, ECHO))
 393                 SET(lflag, ECHO);
 394         else
 395                 CLR(lflag, ECHO);
 396         if (ISSET(flags, CRMOD)) {
 397                 SET(iflag, ICRNL);
 398                 SET(oflag, ONLCR);
 399         } else {
 400                 CLR(iflag, ICRNL);
 401                 CLR(oflag, ONLCR);
 402         }
 403         if (ISSET(flags, XTABS))
 404                 SET(oflag, OXTABS);
 405         else
 406                 CLR(oflag, OXTABS);
 407
 408
 409         if (ISSET(flags, RAW)) {
 410                 iflag &= IXOFF;
 411                 CLR(lflag, ISIG|ICANON|IEXTEN);
 412                 CLR(cflag, PARENB);
 413         } else {
 414                 SET(iflag, BRKINT|IXON|IMAXBEL);
 415                 SET(lflag, ISIG|IEXTEN);
 416                 if (ISSET(flags, CBREAK))
 417                         CLR(lflag, ICANON);
 418                 else
 419                         SET(lflag, ICANON);
 420                 switch (ISSET(flags, ANYP)) {
 421                 case 0:
 422                         CLR(cflag, PARENB);
 423                         break;
 424                 case ANYP:
 425                         SET(cflag, PARENB);
 426                         CLR(iflag, INPCK);
 427                         break;
 428                 case EVENP:
 429                         SET(cflag, PARENB);
 430                         SET(iflag, INPCK);
 431                         CLR(cflag, PARODD);
 432                         break;
 433                 case ODDP:
 434                         SET(cflag, PARENB);
 435                         SET(iflag, INPCK);
 436                         SET(cflag, PARODD);
 437                         break;
 438                 }
 439         }
 440
 441         /* Nothing we can do with CRTBS. */
 442         if (ISSET(flags, PRTERA))
 443                 SET(lflag, ECHOPRT);
 444         else
 445                 CLR(lflag, ECHOPRT);
 446         if (ISSET(flags, CRTERA))
 447                 SET(lflag, ECHOE);
 448         else
 449                 CLR(lflag, ECHOE);
 450 #if !defined(__minix)
 451         /* Nothing we can do with TILDE. */
 452         if (ISSET(flags, MDMBUF))
 453                 SET(cflag, MDMBUF);
 454         else
 455                 CLR(cflag, MDMBUF);
 456 #endif /* !defined(__minix) */
 457         if (ISSET(flags, NOHANG))
 458                 CLR(cflag, HUPCL);
 459         else
 460                 SET(cflag, HUPCL);
 461
 462 #if !defined(__minix)
 463         if (ISSET(flags, CRTKIL))
 464                 SET(lflag, ECHOKE);
 465         else
 466                 CLR(lflag, ECHOKE);
 467 #endif /* !defined(__minix) */
 468         if (ISSET(flags, CTLECH))
 469                 SET(lflag, ECHOCTL);
 470         else
 471                 CLR(lflag, ECHOCTL);
 472         if (!ISSET(flags, DECCTQ))
 473                 SET(iflag, IXANY);
 474         else
 475                 CLR(iflag, IXANY);
 476         CLR(lflag, TOSTOP|FLUSHO|PENDIN|NOFLSH);
 477         SET(lflag, ISSET(flags, TOSTOP|FLUSHO|PENDIN|NOFLSH));
 478
 479         if (ISSET(flags, RAW|LITOUT|PASS8)) {
 480                 CLR(cflag, CSIZE);
 481                 SET(cflag, CS8);
 482                 if (!ISSET(flags, RAW|PASS8))
 483                         SET(iflag, ISTRIP);
 484                 else
 485                         CLR(iflag, ISTRIP);
 486                 if (!ISSET(flags, RAW|LITOUT))
 487                         SET(oflag, OPOST);
 488                 else
 489                         CLR(oflag, OPOST);
 490         } else {
 491                 CLR(cflag, CSIZE);
 492                 SET(cflag, CS7);
 493                 SET(iflag, ISTRIP);
 494                 SET(oflag, OPOST);
 495         }
 496
 497         tmode.c_iflag = iflag;
 498         tmode.c_oflag = oflag;
 499         tmode.c_cflag = cflag;
 500         tmode.c_lflag = lflag;
 501 }
 502 #endif
 503
 504 #ifdef XXX_DELAY
 505 struct delayval {
 506         unsigned        delay;          /* delay in ms */
 507         int             bits;
 508 };
 509
 510 /*
 511  * below are random guesses, I can't be bothered checking
 512  */
 513
 514 struct delayval crdelay[] = {
 515         { 1,            CR1 },
 516         { 2,            CR2 },
 517         { 3,            CR3 },
 518         { 83,           CR1 },
 519         { 166,          CR2 },
 520         { 0,            CR3 },
 521 };
 522
 523 struct delayval nldelay[] = {
 524         { 1,            NL1 },          /* special, calculated */
 525         { 2,            NL2 },
 526         { 3,            NL3 },
 527         { 100,          NL2 },
 528         { 0,            NL3 },
 529 };
 530
 531 struct delayval bsdelay[] = {
 532         { 1,            BS1 },
 533         { 0,            0 },
 534 };
 535
 536 struct delayval ffdelay[] = {
 537         { 1,            FF1 },
 538         { 1750,         FF1 },
 539         { 0,            FF1 },
 540 };
 541
 542 struct delayval tbdelay[] = {
 543         { 1,             TAB1 },
 544         { 2,             TAB2 },
 545         { 3,            XTABS },        /* this is expand tabs */
 546         { 100,           TAB1 },
 547         { 0,             TAB2 },
 548 };
 549
 550 int
 551 delaybits(void)
 552 {
 553         int f;
 554
 555         f  = adelay(CD, crdelay);
 556         f |= adelay(ND, nldelay);
 557         f |= adelay(FD, ffdelay);
 558         f |= adelay(TD, tbdelay);
 559         f |= adelay(BD, bsdelay);
 560         return (f);
 561 }
 562
 563 int
 564 adelay(int ms, struct delayval *dp)
 565 {
 566         if (ms == 0)
 567                 return (0);
 568         while (dp->delay && ms > dp->delay)
 569                 dp++;
 570         return (dp->bits);
 571 }
 572 #endif
 573
 574 char    editedhost[MAXHOSTNAMELEN];
 575
 576 void
 577 edithost(const char *pat)
 578 {
 579         char *host = HN;
 580         char *res = editedhost;
 581
 582         if (!pat)
 583                 pat = "";
 584         while (*pat) {
 585                 switch (*pat) {
 586
 587                 case '#':
 588                         if (*host)
 589                                 host++;
 590                         break;
 591
 592                 case '@':
 593                         if (*host)
 594                                 *res++ = *host++;
 595                         break;
 596
 597                 default:
 598                         *res++ = *pat;
 599                         break;
 600
 601                 }
 602                 if (res == &editedhost[sizeof editedhost - 1]) {
 603                         *res = '\0';
 604                         return;
 605                 }
 606                 pat++;
 607         }
 608         if (*host)
 609                 (void)strncpy(res, host,
 610                     sizeof editedhost - (res - editedhost) - 1);
 611         else
 612                 *res = '\0';
 613         editedhost[sizeof editedhost - 1] = '\0';
 614 }
 615
 616 void
 617 makeenv(char *env[])
 618 {
 619         static char termbuf[128] = "TERM=";
 620         char *p, *q;
 621         char **ep;
 622
 623         ep = env;
 624         if (TT && *TT) {
 625                 (void)strlcat(termbuf, TT, sizeof(termbuf));
 626                 *ep++ = termbuf;
 627         }
 628         if ((p = EV) != NULL) {
 629                 q = p;
 630                 while ((q = strchr(q, ',')) != NULL) {
 631                         *q++ = '\0';
 632                         *ep++ = p;
 633                         p = q;
 634                 }
 635                 if (*p)
 636                         *ep++ = p;
 637         }
 638         *ep = (char *)0;
 639 }
 640
 641 /*
 642  * This speed select mechanism is written for the Develcon DATASWITCH.
 643  * The Develcon sends a string of the form "B{speed}\n" at a predefined
 644  * baud rate. This string indicates the user's actual speed.
 645  * The routine below returns the terminal type mapped from derived speed.
 646  */
 647 struct  portselect {
 648         const char *ps_baud;
 649         const char *ps_type;
 650 } portspeeds[] = {
 651         { "B110",       "std.110" },
 652         { "B134",       "std.134" },
 653         { "B150",       "std.150" },
 654         { "B300",       "std.300" },
 655         { "B600",       "std.600" },
 656         { "B1200",      "std.1200" },
 657         { "B2400",      "std.2400" },
 658         { "B4800",      "std.4800" },
 659         { "B9600",      "std.9600" },
 660         { "B19200",     "std.19200" },
 661         { NULL, NULL }
 662 };
 663
 664 const char *
 665 portselector(void)
 666 {
 667         char c, baud[20];
 668         const char *type = "default";
 669         struct portselect *ps;
 670         size_t len;
 671
 672         (void)alarm(5*60);
 673         for (len = 0; len < sizeof (baud) - 1; len++) {
 674                 if (read(STDIN_FILENO, &c, 1) <= 0)
 675                         break;
 676                 c &= 0177;
 677                 if (c == '\n' || c == '\r')
 678                         break;
 679                 if (c == 'B')
 680                         len = 0;        /* in case of leading garbage */
 681                 baud[len] = c;
 682         }
 683         baud[len] = '\0';
 684         for (ps = portspeeds; ps->ps_baud; ps++)
 685                 if (strcmp(ps->ps_baud, baud) == 0) {
 686                         type = ps->ps_type;
 687                         break;
 688                 }
 689         (void)sleep(2); /* wait for connection to complete */
 690         return (type);
 691 }
 692
 693 /*
 694  * This auto-baud speed select mechanism is written for the Micom 600
 695  * portselector. Selection is done by looking at how the character '\r'
 696  * is garbled at the different speeds.
 697  */
 698 #include <sys/time.h>
 699
 700 const char *
 701 autobaud(void)
 702 {
 703         struct pollfd set[1];
 704         struct timespec timeout;
 705         char c;
 706         const char *type = "9600-baud";
 707
 708         (void)tcflush(0, TCIOFLUSH);
 709         set[0].fd = STDIN_FILENO;
 710         set[0].events = POLLIN;
 711         if (poll(set, 1, 5000) <= 0)
 712                 return (type);
 713         if (read(STDIN_FILENO, &c, 1) != 1)
 714                 return (type);
 715         timeout.tv_sec = 0;
 716         timeout.tv_nsec = 20000;
 717         (void)nanosleep(&timeout, NULL);
 718         (void)tcflush(0, TCIOFLUSH);
 719         switch (c & 0377) {
 720
 721         case 0200:              /* 300-baud */
 722                 type = "300-baud";
 723                 break;
 724
 725         case 0346:              /* 1200-baud */
 726                 type = "1200-baud";
 727                 break;
 728
 729         case  015:              /* 2400-baud */
 730         case 0215:
 731                 type = "2400-baud";
 732                 break;
 733
 734         default:                /* 4800-baud */
 735                 type = "4800-baud";
 736                 break;
 737
 738         case 0377:              /* 9600-baud */
 739                 type = "9600-baud";
 740                 break;
 741         }
 742         return (type);
 743 }