usr.bin/mt/mt.c

   1 /*
   2  * Copyright (c) 1980, 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. Neither the name of the University nor the names of its contributors
  14  *    may be used to endorse or promote products derived from this software
  15  *    without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  27  * SUCH DAMAGE.
  28  *
  29  * @(#) Copyright (c) 1980, 1993 The Regents of the University of California.  All rights reserved.
  30  * @(#)mt.c     8.2 (Berkeley) 5/4/95
  31  * $FreeBSD: src/usr.bin/mt/mt.c,v 1.26.2.3 2002/11/08 11:35:57 joerg Exp $
  32  */
  33
  34 /*
  35  * mt --
  36  *   magnetic tape manipulation program
  37  */
  38 #include <sys/types.h>
  39 #include <sys/ioctl.h>
  40 #include <sys/mtio.h>
  41
  42 #include <ctype.h>
  43 #include <err.h>
  44 #include <fcntl.h>
  45 #include <stdio.h>
  46 #include <stdlib.h>
  47 #include <string.h>
  48 #include <unistd.h>
  49
  50 /* the appropriate sections of <sys/mtio.h> are also #ifdef'd for FreeBSD */
  51 #if defined(__DragonFly__)
  52 /* c_flags */
  53 #define NEED_2ARGS      0x01
  54 #define ZERO_ALLOWED    0x02
  55 #define IS_DENSITY      0x04
  56 #define DISABLE_THIS    0x08
  57 #define IS_COMP         0x10
  58 #endif /* defined(__DragonFly__) */
  59
  60 #ifndef TRUE
  61 #define TRUE 1
  62 #endif
  63 #ifndef FALSE
  64 #define FALSE 0
  65 #endif
  66
  67 static struct commands {
  68         char *c_name;
  69         int c_code;
  70         int c_ronly;
  71 #if defined(__DragonFly__)
  72         int c_flags;
  73 #endif /* defined(__DragonFly__) */
  74 } com[] = {
  75         { "bsf",        MTBSF,  1 },
  76         { "bsr",        MTBSR,  1 },
  77 #if defined(__DragonFly__)
  78         /* XXX FreeBSD considered "eof" dangerous, since it's being
  79            confused with "eom" (and is an alias for "weof" anyway) */
  80         { "eof",        MTWEOF, 0, DISABLE_THIS },
  81 #else
  82         { "eof",        MTWEOF, 0 },
  83 #endif
  84         { "fsf",        MTFSF,  1 },
  85         { "fsr",        MTFSR,  1 },
  86         { "offline",    MTOFFL, 1 },
  87         { "rewind",     MTREW,  1 },
  88         { "rewoffl",    MTOFFL, 1 },
  89         { "status",     MTNOP,  1 },
  90 #if defined(__DragonFly__)
  91         { "weof",       MTWEOF, 0, ZERO_ALLOWED },
  92 #else
  93         { "weof",       MTWEOF, 0 },
  94 #endif
  95 #if defined(__DragonFly__)
  96         { "erase",      MTERASE, 0, ZERO_ALLOWED},
  97         { "blocksize",  MTSETBSIZ, 0, NEED_2ARGS|ZERO_ALLOWED },
  98         { "density",    MTSETDNSTY, 0, NEED_2ARGS|ZERO_ALLOWED|IS_DENSITY },
  99         { "eom",        MTEOD, 1 },
 100         { "eod",        MTEOD, 1 },
 101         { "smk",        MTWSS, 0 },
 102         { "wss",        MTWSS, 0 },
 103         { "fss",        MTFSS, 1 },
 104         { "bss",        MTBSS, 1 },
 105         { "comp",       MTCOMP, 0, NEED_2ARGS|ZERO_ALLOWED|IS_COMP },
 106         { "retension",  MTRETENS, 1 },
 107         { "rdhpos",     MTIOCRDHPOS,  0 },
 108         { "rdspos",     MTIOCRDSPOS,  0 },
 109         { "sethpos",    MTIOCHLOCATE, 0, NEED_2ARGS|ZERO_ALLOWED },
 110         { "setspos",    MTIOCSLOCATE, 0, NEED_2ARGS|ZERO_ALLOWED },
 111         { "errstat",    MTIOCERRSTAT, 0 },
 112         { "setmodel",   MTIOCSETEOTMODEL, 0, NEED_2ARGS|ZERO_ALLOWED },
 113         { "seteotmodel",        MTIOCSETEOTMODEL, 0, NEED_2ARGS|ZERO_ALLOWED },
 114         { "getmodel",   MTIOCGETEOTMODEL },
 115         { "geteotmodel",        MTIOCGETEOTMODEL },
 116 #endif /* defined(__DragonFly__) */
 117         { NULL }
 118 };
 119
 120 static void printreg(char *, u_int, char *);
 121 static void status(struct mtget *);
 122 static void usage(void) __dead2;
 123 #if defined (__DragonFly__)
 124 static void st_status(struct mtget *);
 125 static int stringtodens(const char *s);
 126 static const char *denstostring(int d);
 127 static int denstobp(int d, int bpi);
 128 static u_int32_t stringtocomp(const char *s);
 129 static const char *comptostring(u_int32_t comp);
 130 static void warn_eof(void) __dead2;
 131 #endif /* defined (__DragonFly__) */
 132
 133 int
 134 main(int argc, char **argv)
 135 {
 136         struct commands *comp;
 137         struct mtget mt_status;
 138         struct mtop mt_com;
 139         int ch, len, mtfd;
 140         char *p, *tape;
 141
 142         if ((tape = getenv("TAPE")) == NULL)
 143                 tape = DEFTAPE;
 144
 145         while ((ch = getopt(argc, argv, "f:t:")) != -1)
 146                 switch(ch) {
 147                 case 'f':
 148                 case 't':
 149                         tape = optarg;
 150                         break;
 151                 case '?':
 152                 default:
 153                         usage();
 154                 }
 155         argc -= optind;
 156         argv += optind;
 157
 158         if (argc < 1 || argc > 2)
 159                 usage();
 160
 161         len = strlen(p = *argv++);
 162         for (comp = com;; comp++) {
 163                 if (comp->c_name == NULL)
 164                         errx(1, "%s: unknown command", p);
 165                 if (strncmp(p, comp->c_name, len) == 0)
 166                         break;
 167         }
 168 #if defined(__DragonFly__)
 169         if((comp->c_flags & NEED_2ARGS) && argc != 2)
 170                 usage();
 171         if(comp->c_flags & DISABLE_THIS) {
 172                 warn_eof();
 173         }
 174 #endif /* defined(__DragonFly__) */
 175         if ((mtfd = open(tape, comp->c_ronly ? O_RDONLY : O_RDWR)) < 0)
 176                 err(1, "%s", tape);
 177         if (comp->c_code != MTNOP) {
 178                 mt_com.mt_op = comp->c_code;
 179                 if (*argv) {
 180 #if defined (__DragonFly__)
 181                         if (!isdigit(**argv) &&
 182                             (comp->c_flags & IS_DENSITY)) {
 183                                 const char *dcanon;
 184                                 mt_com.mt_count = stringtodens(*argv);
 185                                 if (mt_com.mt_count == 0)
 186                                         errx(1, "%s: unknown density", *argv);
 187                                 dcanon = denstostring(mt_com.mt_count);
 188                                 if (strcmp(dcanon, *argv) != 0)
 189                                         printf(
 190                                         "Using \"%s\" as an alias for %s\n",
 191                                                *argv, dcanon);
 192                                 p = "";
 193                         } else if (!isdigit(**argv) &&
 194                                    (comp->c_flags & IS_COMP)) {
 195
 196                                 mt_com.mt_count = stringtocomp(*argv);
 197                                 if ((u_int32_t)mt_com.mt_count == 0xf0f0f0f0)
 198                                         errx(1, "%s: unknown compression",
 199                                              *argv);
 200                                 p = "";
 201                         } else
 202                                 /* allow for hex numbers; useful for density */
 203                                 mt_com.mt_count = strtol(*argv, &p, 0);
 204 #else
 205                         mt_com.mt_count = strtol(*argv, &p, 10);
 206 #endif /* defined(__DragonFly__) */
 207                         if ((mt_com.mt_count <=
 208 #if defined (__DragonFly__)
 209                             ((comp->c_flags & ZERO_ALLOWED)? -1: 0)
 210                             && ((comp->c_flags & IS_COMP) == 0)
 211 #else
 212                             0
 213 #endif /* defined (__DragonFly__) */
 214                             ) || *p)
 215                                 errx(1, "%s: illegal count", *argv);
 216                 }
 217                 else
 218                         mt_com.mt_count = 1;
 219 #if     defined(__DragonFly__)
 220                 switch (comp->c_code) {
 221                 case MTIOCERRSTAT:
 222                 {
 223                         int i;
 224                         union mterrstat umn;
 225                         struct scsi_tape_errors *s = &umn.scsi_errstat;
 226
 227                         if (ioctl(mtfd, comp->c_code, (caddr_t)&umn) < 0)
 228                                 err(2, "%s", tape);
 229                         (void)printf("Last I/O Residual: %u\n", s->io_resid);
 230                         (void)printf(" Last I/O Command:");
 231                         for (i = 0; i < sizeof (s->io_cdb); i++)
 232                                 (void)printf(" %02X", s->io_cdb[i]);
 233                         (void)printf("\n");
 234                         (void)printf("   Last I/O Sense:\n\n\t");
 235                         for (i = 0; i < sizeof (s->io_sense); i++) {
 236                                 (void)printf(" %02X", s->io_sense[i]);
 237                                 if (((i + 1) & 0xf) == 0) {
 238                                         (void)printf("\n\t");
 239                                 }
 240                         }
 241                         (void)printf("\n");
 242                         (void)printf("Last Control Residual: %u\n",
 243                             s->ctl_resid);
 244                         (void)printf(" Last Control Command:");
 245                         for (i = 0; i < sizeof (s->ctl_cdb); i++)
 246                                 (void)printf(" %02X", s->ctl_cdb[i]);
 247                         (void)printf("\n");
 248                         (void)printf("   Last Control Sense:\n\n\t");
 249                         for (i = 0; i < sizeof (s->ctl_sense); i++) {
 250                                 (void)printf(" %02X", s->ctl_sense[i]);
 251                                 if (((i + 1) & 0xf) == 0) {
 252                                         (void)printf("\n\t");
 253                                 }
 254                         }
 255                         (void)printf("\n\n");
 256                         exit(0);
 257                         /* NOTREACHED */
 258                 }
 259                 case MTIOCRDHPOS:
 260                 case MTIOCRDSPOS:
 261                 {
 262                         u_int32_t block;
 263                         if (ioctl(mtfd, comp->c_code, (caddr_t)&block) < 0)
 264                                 err(2, "%s", tape);
 265                         (void)printf("%s: %s block location %u\n", tape,
 266                             (comp->c_code == MTIOCRDHPOS)? "hardware" :
 267                             "logical", block);
 268                         exit(0);
 269                         /* NOTREACHED */
 270                 }
 271                 case MTIOCSLOCATE:
 272                 case MTIOCHLOCATE:
 273                 {
 274                         u_int32_t block = (u_int32_t)mt_com.mt_count;
 275                         if (ioctl(mtfd, comp->c_code, (caddr_t)&block) < 0)
 276                                 err(2, "%s", tape);
 277                         exit(0);
 278                         /* NOTREACHED */
 279                 }
 280                 case MTIOCGETEOTMODEL:
 281                 {
 282                         u_int32_t om;
 283                         if (ioctl(mtfd, MTIOCGETEOTMODEL, (caddr_t)&om) < 0)
 284                                 err(2, "%s", tape);
 285                         (void)printf("%s: the model is %u filemar%s at EOT\n",
 286                             tape, om, (om > 1)? "ks" : "k");
 287                         exit(0);
 288                         /* NOTREACHED */
 289                 }
 290                 case MTIOCSETEOTMODEL:
 291                 {
 292                         u_int32_t om, nm = (u_int32_t)mt_com.mt_count;
 293                         if (ioctl(mtfd, MTIOCGETEOTMODEL, (caddr_t)&om) < 0)
 294                                 err(2, "%s", tape);
 295                         if (ioctl(mtfd, comp->c_code, (caddr_t)&nm) < 0)
 296                                 err(2, "%s", tape);
 297                         (void)printf("%s: old model was %u filemar%s at EOT\n",
 298                             tape, om, (om > 1)? "ks" : "k");
 299                         (void)printf("%s: new model  is %u filemar%s at EOT\n",
 300                             tape, nm, (nm > 1)? "ks" : "k");
 301                         exit(0);
 302                         /* NOTREACHED */
 303                 }
 304                 default:
 305                         break;
 306                 }
 307 #endif
 308                 if (ioctl(mtfd, MTIOCTOP, &mt_com) < 0)
 309                         err(1, "%s: %s", tape, comp->c_name);
 310         } else {
 311                 if (ioctl(mtfd, MTIOCGET, &mt_status) < 0)
 312                         err(1, NULL);
 313                 status(&mt_status);
 314         }
 315         exit(0);
 316         /* NOTREACHED */
 317 }
 318
 319 #ifdef sun
 320 #include <sundev/tmreg.h>
 321 #include <sundev/arreg.h>
 322 #endif
 323
 324 static struct tape_desc {
 325         short   t_type;         /* type of magtape device */
 326         char    *t_name;        /* printing name */
 327         char    *t_dsbits;      /* "drive status" register */
 328         char    *t_erbits;      /* "error" register */
 329 } tapes[] = {
 330 #ifdef sun
 331         { MT_ISCPC,     "TapeMaster",   TMS_BITS,       0 },
 332         { MT_ISAR,      "Archive",      ARCH_CTRL_BITS, ARCH_BITS },
 333 #endif
 334 #if defined (__DragonFly__)
 335         /*
 336          * XXX This is weird.  The st driver reports the tape drive
 337          * as 0x7 (MT_ISAR - Sun/Archive compatible); the wt driver
 338          * either reports MT_ISVIPER1 for an Archive tape, or 0x11
 339          * (MT_ISMFOUR) for other tapes.
 340          * XXX for the wt driver, rely on it behaving like a "standard"
 341          * magtape driver.
 342          */
 343         { MT_ISAR,      "SCSI tape drive", 0,           0 },
 344 #endif /* defined (__DragonFly__) */
 345         { 0 }
 346 };
 347
 348 /*
 349  * Interpret the status buffer returned
 350  */
 351 static void
 352 status(struct mtget *bp)
 353 {
 354         struct tape_desc *mt;
 355
 356         for (mt = tapes;; mt++) {
 357                 if (mt->t_type == 0) {
 358                         (void)printf("%d: unknown tape drive type\n",
 359                             bp->mt_type);
 360                         return;
 361                 }
 362                 if (mt->t_type == bp->mt_type)
 363                         break;
 364         }
 365 #if defined (__DragonFly__)
 366         if(mt->t_type == MT_ISAR)
 367                 st_status(bp);
 368         else {
 369 #endif /* defined (__DragonFly__) */
 370         (void)printf("%s tape drive, residual=%d\n", mt->t_name, bp->mt_resid);
 371         printreg("ds", (unsigned short)bp->mt_dsreg, mt->t_dsbits);
 372         printreg("\ner", (unsigned short)bp->mt_erreg, mt->t_erbits);
 373         (void)putchar('\n');
 374 #if defined (__DragonFly__)
 375         }
 376 #endif /* defined (__DragonFly__) */
 377 }
 378
 379 /*
 380  * Print a register a la the %b format of the kernel's printf.
 381  */
 382 static void
 383 printreg(char *s, u_int v, char *bits)
 384 {
 385         int i, any = 0;
 386         char c;
 387
 388         if (bits && *bits == 8)
 389                 printf("%s=%o", s, v);
 390         else
 391                 printf("%s=%x", s, v);
 392         if (!bits)
 393                 return;
 394         bits++;
 395         if (v && bits) {
 396                 putchar('<');
 397                 while ((i = *bits++)) {
 398                         if (v & (1 << (i-1))) {
 399                                 if (any)
 400                                         putchar(',');
 401                                 any = 1;
 402                                 for (; (c = *bits) > 32; bits++)
 403                                         putchar(c);
 404                         } else
 405                                 for (; *bits > 32; bits++)
 406                                         ;
 407                 }
 408                 putchar('>');
 409         }
 410 }
 411
 412 static void
 413 usage(void)
 414 {
 415         (void)fprintf(stderr, "usage: mt [-f device] command [ count ]\n");
 416         exit(1);
 417 }
 418
 419 #if defined (__DragonFly__)
 420
 421 static struct densities {
 422         int dens;
 423         int bpmm;
 424         int bpi;
 425         const char *name;
 426 } dens[] = {
 427         /*
 428          * Taken from T10 Project 997D
 429          * SCSI-3 Stream Device Commands (SSC)
 430          * Revision 11, 4-Nov-97
 431          */
 432         /*Num.  bpmm    bpi     Reference     */
 433         { 0x1,  32,     800,    "X3.22-1983" },
 434         { 0x2,  63,     1600,   "X3.39-1986" },
 435         { 0x3,  246,    6250,   "X3.54-1986" },
 436         { 0x5,  315,    8000,   "X3.136-1986" },
 437         { 0x6,  126,    3200,   "X3.157-1987" },
 438         { 0x7,  252,    6400,   "X3.116-1986" },
 439         { 0x8,  315,    8000,   "X3.158-1987" },
 440         { 0x9,  491,    37871,  "X3.180" },
 441         { 0xA,  262,    6667,   "X3B5/86-199" },
 442         { 0xB,  63,     1600,   "X3.56-1986" },
 443         { 0xC,  500,    12690,  "HI-TC1" },
 444         { 0xD,  999,    25380,  "HI-TC2" },
 445         { 0xF,  394,    10000,  "QIC-120" },
 446         { 0x10, 394,    10000,  "QIC-150" },
 447         { 0x11, 630,    16000,  "QIC-320" },
 448         { 0x12, 2034,   51667,  "QIC-1350" },
 449         { 0x13, 2400,   61000,  "X3B5/88-185A" },
 450         { 0x14, 1703,   43245,  "X3.202-1991" },
 451         { 0x15, 1789,   45434,  "ECMA TC17" },
 452         { 0x16, 394,    10000,  "X3.193-1990" },
 453         { 0x17, 1673,   42500,  "X3B5/91-174" },
 454         { 0x18, 1673,   42500,  "X3B5/92-50" },
 455         { 0x19, 2460,   62500,  "DLTapeIII" },
 456         { 0x1A, 3214,   81633,  "DLTapeIV(20GB)" },
 457         { 0x1B, 3383,   85937,  "DLTapeIV(35GB)" },
 458         { 0x1C, 1654,   42000,  "QIC-385M" },
 459         { 0x1D, 1512,   38400,  "QIC-410M" },
 460         { 0x1E, 1385,   36000,  "QIC-1000C" },
 461         { 0x1F, 2666,   67733,  "QIC-2100C" },
 462         { 0x20, 2666,   67733,  "QIC-6GB(M)" },
 463         { 0x21, 2666,   67733,  "QIC-20GB(C)" },
 464         { 0x22, 1600,   40640,  "QIC-2GB(C)" },
 465         { 0x23, 2666,   67733,  "QIC-875M" },
 466         { 0x24, 2400,   61000,  "DDS-2" },
 467         { 0x25, 3816,   97000,  "DDS-3" },
 468         { 0x26, 3816,   97000,  "DDS-4" },
 469         { 0x27, 3056,   77611,  "Mammoth" },
 470         { 0x28, 1491,   37871,  "X3.224" },
 471         { 0x41, 3868,   98250,  "DLTapeIV(40GB)" },
 472         { 0x48, 5236,   133000, "SDLTapeI(110)" },
 473         { 0x49, 7598,   193000, "SDLTapeI(160)" },
 474         { 0, 0, 0, NULL }
 475 };
 476
 477 static struct compression_types {
 478         u_int32_t       comp_number;
 479         const char      *name;
 480 } comp_types[] = {
 481         { 0x00, "none" },
 482         { 0x00, "off" },
 483         { 0x10, "IDRC" },
 484         { 0x20, "DCLZ" },
 485         { 0xffffffff, "enable" },
 486         { 0xffffffff, "on" },
 487         { 0xf0f0f0f0, NULL}
 488 };
 489
 490 static const char *
 491 denstostring(int d)
 492 {
 493         static char buf[20];
 494         struct densities *sd;
 495
 496         /* densities 0 and 0x7f are handled as special cases */
 497         if (d == 0)
 498                 return "default";
 499         if (d == 0x7f)
 500                 return "same";
 501         for (sd = dens; sd->dens; sd++)
 502                 if (sd->dens == d)
 503                         break;
 504         if (sd->dens == 0)
 505                 sprintf(buf, "0x%02x", d);
 506         else
 507                 sprintf(buf, "0x%02x:%s", d, sd->name);
 508         return buf;
 509 }
 510
 511 /*
 512  * Given a specific density number, return either the bits per inch or bits
 513  * per millimeter for the given density.
 514  */
 515 static int
 516 denstobp(int d, int bpi)
 517 {
 518         struct densities *sd;
 519
 520         for (sd = dens; sd->dens; sd++)
 521                 if (sd->dens == d)
 522                         break;
 523         if (sd->dens == 0)
 524                 return(0);
 525         else {
 526                 if (bpi)
 527                         return(sd->bpi);
 528                 else
 529                         return(sd->bpmm);
 530         }
 531 }
 532
 533 static int
 534 stringtodens(const char *s)
 535 {
 536         struct densities *sd;
 537         size_t l = strlen(s);
 538
 539         for (sd = dens; sd->dens; sd++)
 540                 if (strncasecmp(sd->name, s, l) == 0)
 541                         break;
 542         return sd->dens;
 543 }
 544
 545
 546 static const char *
 547 getblksiz(int bs)
 548 {
 549         static char buf[25];
 550         if (bs == 0)
 551                 return "variable";
 552         else {
 553                 sprintf(buf, "%d bytes", bs);
 554                 return buf;
 555         }
 556 }
 557
 558 static const char *
 559 comptostring(u_int32_t comp)
 560 {
 561         static char buf[20];
 562         struct compression_types *ct;
 563
 564         if (comp == MT_COMP_DISABLED)
 565                 return "disabled";
 566         else if (comp == MT_COMP_UNSUPP)
 567                 return "unsupported";
 568
 569         for (ct = comp_types; ct->name; ct++)
 570                 if (ct->comp_number == comp)
 571                         break;
 572
 573         if (ct->comp_number == 0xf0f0f0f0) {
 574                 sprintf(buf, "0x%x", comp);
 575                 return(buf);
 576         } else
 577                 return(ct->name);
 578 }
 579
 580 static u_int32_t
 581 stringtocomp(const char *s)
 582 {
 583         struct compression_types *ct;
 584         size_t l = strlen(s);
 585
 586         for (ct = comp_types; ct->name; ct++)
 587                 if (strncasecmp(ct->name, s, l) == 0)
 588                         break;
 589
 590         return(ct->comp_number);
 591 }
 592
 593 static void
 594 st_status(struct mtget *bp)
 595 {
 596         printf("Mode      Density              Blocksize      bpi      "
 597                "Compression\n"
 598                "Current:  %-17s    %-12s   %-7d  %s\n"
 599                "---------available modes---------\n"
 600                "0:        %-17s    %-12s   %-7d  %s\n"
 601                "1:        %-17s    %-12s   %-7d  %s\n"
 602                "2:        %-17s    %-12s   %-7d  %s\n"
 603                "3:        %-17s    %-12s   %-7d  %s\n",
 604                denstostring(bp->mt_density), getblksiz(bp->mt_blksiz),
 605                denstobp(bp->mt_density, TRUE), comptostring(bp->mt_comp),
 606                denstostring(bp->mt_density0), getblksiz(bp->mt_blksiz0),
 607                denstobp(bp->mt_density0, TRUE), comptostring(bp->mt_comp0),
 608                denstostring(bp->mt_density1), getblksiz(bp->mt_blksiz1),
 609                denstobp(bp->mt_density1, TRUE), comptostring(bp->mt_comp1),
 610                denstostring(bp->mt_density2), getblksiz(bp->mt_blksiz2),
 611                denstobp(bp->mt_density2, TRUE), comptostring(bp->mt_comp2),
 612                denstostring(bp->mt_density3), getblksiz(bp->mt_blksiz3),
 613                denstobp(bp->mt_density3, TRUE), comptostring(bp->mt_comp3));
 614
 615         if (bp->mt_dsreg != MTIO_DSREG_NIL) {
 616                 auto char foo[32];
 617                 const char *sfmt = "Current Driver State: %s.\n";
 618                 printf("---------------------------------\n");
 619                 switch (bp->mt_dsreg) {
 620                 case MTIO_DSREG_REST:
 621                         printf(sfmt, "at rest");
 622                         break;
 623                 case MTIO_DSREG_RBSY:
 624                         printf(sfmt, "Communicating with drive");
 625                         break;
 626                 case MTIO_DSREG_WR:
 627                         printf(sfmt, "Writing");
 628                         break;
 629                 case MTIO_DSREG_FMK:
 630                         printf(sfmt, "Writing Filemarks");
 631                         break;
 632                 case MTIO_DSREG_ZER:
 633                         printf(sfmt, "Erasing");
 634                         break;
 635                 case MTIO_DSREG_RD:
 636                         printf(sfmt, "Reading");
 637                         break;
 638                 case MTIO_DSREG_FWD:
 639                         printf(sfmt, "Spacing Forward");
 640                         break;
 641                 case MTIO_DSREG_REV:
 642                         printf(sfmt, "Spacing Reverse");
 643                         break;
 644                 case MTIO_DSREG_POS:
 645                         printf(sfmt,
 646                             "Hardware Positioning (direction unknown)");
 647                         break;
 648                 case MTIO_DSREG_REW:
 649                         printf(sfmt, "Rewinding");
 650                         break;
 651                 case MTIO_DSREG_TEN:
 652                         printf(sfmt, "Retensioning");
 653                         break;
 654                 case MTIO_DSREG_UNL:
 655                         printf(sfmt, "Unloading");
 656                         break;
 657                 case MTIO_DSREG_LD:
 658                         printf(sfmt, "Loading");
 659                         break;
 660                 default:
 661                         (void) sprintf(foo, "Unknown state 0x%x", bp->mt_dsreg);
 662                         printf(sfmt, foo);
 663                         break;
 664                 }
 665         }
 666         if (bp->mt_resid == 0 && bp->mt_fileno == (daddr_t) -1 &&
 667             bp->mt_blkno == (daddr_t) -1)
 668                 return;
 669         printf("---------------------------------\n");
 670         printf("File Number: %u\tRecord Number: %u\tResidual Count %d\n",
 671             bp->mt_fileno, bp->mt_blkno, bp->mt_resid);
 672 }
 673
 674 static void
 675 warn_eof(void)
 676 {
 677         fprintf(stderr,
 678                 "The \"eof\" command has been disabled.\n"
 679                 "Use \"weof\" if you really want to write end-of-file marks,\n"
 680                 "or \"eom\" if you rather want to skip to the end of "
 681                 "recorded medium.\n");
 682         exit(1);
 683 }
 684
 685 #endif /* defined (__DragonFly__) */