mt.c revision 43629 
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. 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
34#ifndef lint
35static const char copyright[] =
36"@(#) Copyright (c) 1980, 1993\n\
37	The Regents of the University of California.  All rights reserved.\n";
38#endif /* not lint */
39
40#ifndef lint
41#if 0
42static char sccsid[] = "@(#)mt.c	8.2 (Berkeley) 5/4/95";
43#endif
44static const char rcsid[] =
45	"$Id: mt.c,v 1.20 1998/12/22 17:28:25 mjacob Exp $";
46#endif /* not lint */
47
48/*
49 * mt --
50 *   magnetic tape manipulation program
51 */
52#include <sys/types.h>
53#include <sys/ioctl.h>
54#include <sys/mtio.h>
55
56#include <ctype.h>
57#include <err.h>
58#include <fcntl.h>
59#include <stdio.h>
60#include <stdlib.h>
61#include <string.h>
62#include <unistd.h>
63
64/* the appropriate sections of <sys/mtio.h> are also #ifdef'd for FreeBSD */
65#if defined(__FreeBSD__)
66/* c_flags */
67#define NEED_2ARGS	0x01
68#define ZERO_ALLOWED	0x02
69#define IS_DENSITY	0x04
70#define DISABLE_THIS	0x08
71#define IS_COMP		0x10
72#endif /* defined(__FreeBSD__) */
73
74#ifndef TRUE
75#define TRUE 1
76#endif
77#ifndef FALSE
78#define FALSE 0
79#endif
80
81struct commands {
82	char *c_name;
83	int c_code;
84	int c_ronly;
85#if defined(__FreeBSD__)
86	int c_flags;
87#endif /* defined(__FreeBSD__) */
88} com[] = {
89	{ "bsf",	MTBSF,	1 },
90	{ "bsr",	MTBSR,	1 },
91#if defined(__FreeBSD__)
92	/* XXX FreeBSD considered "eof" dangerous, since it's being
93	   confused with "eom" (and is an alias for "weof" anyway) */
94	{ "eof",	MTWEOF, 0, DISABLE_THIS },
95#else
96	{ "eof",	MTWEOF, 0 },
97#endif
98	{ "fsf",	MTFSF,	1 },
99	{ "fsr",	MTFSR,	1 },
100	{ "offline",	MTOFFL,	1 },
101	{ "rewind",	MTREW,	1 },
102	{ "rewoffl",	MTOFFL,	1 },
103	{ "status",	MTNOP,	1 },
104#if defined(__FreeBSD__)
105	{ "weof",	MTWEOF,	0, ZERO_ALLOWED },
106#else
107	{ "weof",	MTWEOF,	0 },
108#endif
109#if defined(__FreeBSD__)
110	{ "erase",	MTERASE, 0, ZERO_ALLOWED},
111	{ "blocksize",	MTSETBSIZ, 0, NEED_2ARGS|ZERO_ALLOWED },
112	{ "density",	MTSETDNSTY, 0, NEED_2ARGS|ZERO_ALLOWED|IS_DENSITY },
113	{ "eom",	MTEOD, 1 },
114	{ "eod",	MTEOD, 1 },
115	{ "smk",	MTWSS, 0 },
116	{ "wss",	MTWSS, 0 },
117	{ "fss",	MTFSS, 1 },
118	{ "bss",	MTBSS, 1 },
119	{ "comp",	MTCOMP, 0, NEED_2ARGS|ZERO_ALLOWED|IS_COMP },
120	{ "retension",	MTRETENS, 1 },
121	{ "rdhpos",     MTIOCRDHPOS,  0 },
122	{ "rdspos",     MTIOCRDSPOS,  0 },
123	{ "sethpos",    MTIOCHLOCATE, 0, NEED_2ARGS|ZERO_ALLOWED },
124	{ "setspos",    MTIOCSLOCATE, 0, NEED_2ARGS|ZERO_ALLOWED },
125	{ "errstat",	MTIOCERRSTAT, 0 },
126#endif /* defined(__FreeBSD__) */
127	{ NULL }
128};
129
130void printreg __P((char *, u_int, char *));
131void status __P((struct mtget *));
132void usage __P((void));
133#if defined (__FreeBSD__)
134void st_status (struct mtget *);
135int stringtodens (const char *s);
136const char *denstostring (int d);
137int denstobp(int d, int bpi);
138u_int32_t stringtocomp(const char *s);
139const char * comptostring(u_int32_t comp);
140void warn_eof __P((void));
141#endif /* defined (__FreeBSD__) */
142
143int
144main(argc, argv)
145	int argc;
146	char *argv[];
147{
148	register struct commands *comp;
149	struct mtget mt_status;
150	struct mtop mt_com;
151	int ch, len, mtfd;
152	char *p, *tape;
153
154	if ((tape = getenv("TAPE")) == NULL)
155		tape = DEFTAPE;
156
157	while ((ch = getopt(argc, argv, "f:t:")) != -1)
158		switch(ch) {
159		case 'f':
160		case 't':
161			tape = optarg;
162			break;
163		case '?':
164		default:
165			usage();
166		}
167	argc -= optind;
168	argv += optind;
169
170	if (argc < 1 || argc > 2)
171		usage();
172
173	len = strlen(p = *argv++);
174	for (comp = com;; comp++) {
175		if (comp->c_name == NULL)
176			errx(1, "%s: unknown command", p);
177		if (strncmp(p, comp->c_name, len) == 0)
178			break;
179	}
180#if defined(__FreeBSD__)
181	if((comp->c_flags & NEED_2ARGS) && argc != 2)
182		usage();
183	if(comp->c_flags & DISABLE_THIS) {
184		warn_eof();
185	}
186#endif /* defined(__FreeBSD__) */
187	if ((mtfd = open(tape, comp->c_ronly ? O_RDONLY : O_RDWR)) < 0)
188		err(1, "%s", tape);
189	if (comp->c_code != MTNOP) {
190		mt_com.mt_op = comp->c_code;
191		if (*argv) {
192#if defined (__FreeBSD__)
193			if (!isdigit(**argv) &&
194			    (comp->c_flags & IS_DENSITY)) {
195				const char *dcanon;
196				mt_com.mt_count = stringtodens(*argv);
197				if (mt_com.mt_count == 0)
198					errx(1, "%s: unknown density", *argv);
199				dcanon = denstostring(mt_com.mt_count);
200				if (strcmp(dcanon, *argv) != 0)
201					printf(
202					"Using \"%s\" as an alias for %s\n",
203					       *argv, dcanon);
204				p = "";
205			} else if (!isdigit(**argv) &&
206				   (comp->c_flags & IS_COMP)) {
207
208				mt_com.mt_count = stringtocomp(*argv);
209				if ((u_int32_t)mt_com.mt_count == 0xf0f0f0f0)
210					errx(1, "%s: unknown compression",
211					     *argv);
212				p = "";
213			} else
214				/* allow for hex numbers; useful for density */
215				mt_com.mt_count = strtol(*argv, &p, 0);
216#else
217			mt_com.mt_count = strtol(*argv, &p, 10);
218#endif /* defined(__FreeBSD__) */
219			if ((mt_com.mt_count <=
220#if defined (__FreeBSD__)
221			    ((comp->c_flags & ZERO_ALLOWED)? -1: 0)
222			    && ((comp->c_flags & IS_COMP) == 0)
223#else
224			    0
225#endif /* defined (__FreeBSD__) */
226			    ) || *p)
227				errx(1, "%s: illegal count", *argv);
228		}
229		else
230			mt_com.mt_count = 1;
231#if	defined(__FreeBSD__)
232		switch (comp->c_code) {
233		case MTIOCERRSTAT:
234		{
235			int i;
236			union mterrstat umn;
237			struct scsi_tape_errors *s = &umn.scsi_errstat;
238
239			if (ioctl(mtfd, comp->c_code, (caddr_t)&umn) < 0)
240				err(2, "%s", tape);
241			(void)printf("Last I/O Residual: %u\n", s->io_resid);
242			(void)printf(" Last I/O Command:");
243			for (i = 0; i < sizeof (s->io_cdb); i++)
244				(void)printf(" %02X", s->io_cdb[i]);
245			(void)printf("\n");
246			(void)printf("   Last I/O Sense:\n\n\t");
247			for (i = 0; i < sizeof (s->io_sense); i++) {
248				(void)printf(" %02X", s->io_sense[i]);
249				if (((i + 1) & 0xf) == 0) {
250					(void)printf("\n\t");
251				}
252			}
253			(void)printf("\n");
254			(void)printf("Last Control Residual: %u\n",
255			    s->ctl_resid);
256			(void)printf(" Last Control Command:");
257			for (i = 0; i < sizeof (s->ctl_cdb); i++)
258				(void)printf(" %02X", s->ctl_cdb[i]);
259			(void)printf("\n");
260			(void)printf("   Last Control Sense:\n\n\t");
261			for (i = 0; i < sizeof (s->ctl_sense); i++) {
262				(void)printf(" %02X", s->ctl_sense[i]);
263				if (((i + 1) & 0xf) == 0) {
264					(void)printf("\n\t");
265				}
266			}
267			(void)printf("\n\n");
268			exit(0);
269			/* NOTREACHED */
270		}
271		case MTIOCRDHPOS:
272		case MTIOCRDSPOS:
273		{
274			u_int32_t block;
275			if (ioctl(mtfd, comp->c_code, (caddr_t)&block) < 0)
276				err(2, "%s", tape);
277			(void)printf("%s: %s block location %u\n", tape,
278			    (comp->c_code == MTIOCRDHPOS)? "hardware" :
279			    "logical", block);
280			exit(0);
281			/* NOTREACHED */
282		}
283		case MTIOCSLOCATE:
284		case MTIOCHLOCATE:
285		{
286			u_int32_t block = (u_int32_t)mt_com.mt_count;
287			if (ioctl(mtfd, comp->c_code, (caddr_t)&block) < 0)
288				err(2, "%s", tape);
289			exit(0);
290			/* NOTREACHED */
291		}
292		default:
293			break;
294		}
295#endif
296		if (ioctl(mtfd, MTIOCTOP, &mt_com) < 0)
297			err(1, "%s: %s", tape, comp->c_name);
298	} else {
299		if (ioctl(mtfd, MTIOCGET, &mt_status) < 0)
300			err(1, NULL);
301		status(&mt_status);
302	}
303	exit(0);
304	/* NOTREACHED */
305}
306
307#ifdef vax
308#include <vax/mba/mtreg.h>
309#include <vax/mba/htreg.h>
310
311#include <vax/uba/utreg.h>
312#include <vax/uba/tmreg.h>
313#undef b_repcnt		/* argh */
314#include <vax/uba/tsreg.h>
315#endif
316
317#ifdef sun
318#include <sundev/tmreg.h>
319#include <sundev/arreg.h>
320#endif
321
322#ifdef tahoe
323#include <tahoe/vba/cyreg.h>
324#endif
325
326#if defined(__FreeBSD__) && defined(__i386__)
327#include <machine/wtio.h>
328#endif
329
330struct tape_desc {
331	short	t_type;		/* type of magtape device */
332	char	*t_name;	/* printing name */
333	char	*t_dsbits;	/* "drive status" register */
334	char	*t_erbits;	/* "error" register */
335} tapes[] = {
336#ifdef vax
337	{ MT_ISTS,	"ts11",		0,		TSXS0_BITS },
338	{ MT_ISHT,	"tm03",		HTDS_BITS,	HTER_BITS },
339	{ MT_ISTM,	"tm11",		0,		TMER_BITS },
340	{ MT_ISMT,	"tu78",		MTDS_BITS,	0 },
341	{ MT_ISUT,	"tu45",		UTDS_BITS,	UTER_BITS },
342#endif
343#ifdef sun
344	{ MT_ISCPC,	"TapeMaster",	TMS_BITS,	0 },
345	{ MT_ISAR,	"Archive",	ARCH_CTRL_BITS,	ARCH_BITS },
346#endif
347#ifdef tahoe
348	{ MT_ISCY,	"cipher",	CYS_BITS,	CYCW_BITS },
349#endif
350#if defined (__FreeBSD__)
351	/*
352	 * XXX This is weird.  The st driver reports the tape drive
353	 * as 0x7 (MT_ISAR - Sun/Archive compatible); the wt driver
354	 * either reports MT_ISVIPER1 for an Archive tape, or 0x11
355	 * (MT_ISMFOUR) for other tapes.
356	 * XXX for the wt driver, rely on it behaving like a "standard"
357	 * magtape driver.
358	 */
359	{ MT_ISAR,	"SCSI tape drive", 0,		0 },
360#if defined (__i386__)
361	{ MT_ISVIPER1,	"Archive Viper", WTDS_BITS, WTER_BITS },
362	{ MT_ISMFOUR,	"Wangtek",	 WTDS_BITS, WTER_BITS },
363#endif
364#endif /* defined (__FreeBSD__) */
365	{ 0 }
366};
367
368/*
369 * Interpret the status buffer returned
370 */
371void
372status(bp)
373	register struct mtget *bp;
374{
375	register struct tape_desc *mt;
376
377	for (mt = tapes;; mt++) {
378		if (mt->t_type == 0) {
379			(void)printf("%d: unknown tape drive type\n",
380			    bp->mt_type);
381			return;
382		}
383		if (mt->t_type == bp->mt_type)
384			break;
385	}
386#if defined (__FreeBSD__)
387	if(mt->t_type == MT_ISAR)
388		st_status(bp);
389	else {
390#endif /* defined (__FreeBSD__) */
391	(void)printf("%s tape drive, residual=%d\n", mt->t_name, bp->mt_resid);
392	printreg("ds", (unsigned short)bp->mt_dsreg, mt->t_dsbits);
393	printreg("\ner", (unsigned short)bp->mt_erreg, mt->t_erbits);
394	(void)putchar('\n');
395#if defined (__FreeBSD__)
396	}
397#endif /* defined (__FreeBSD__) */
398}
399
400/*
401 * Print a register a la the %b format of the kernel's printf.
402 */
403void
404printreg(s, v, bits)
405	char *s;
406	register u_int v;
407	register char *bits;
408{
409	register int i, any = 0;
410	register char c;
411
412	if (bits && *bits == 8)
413		printf("%s=%o", s, v);
414	else
415		printf("%s=%x", s, v);
416	if (!bits)
417		return;
418	bits++;
419	if (v && bits) {
420		putchar('<');
421		while ((i = *bits++)) {
422			if (v & (1 << (i-1))) {
423				if (any)
424					putchar(',');
425				any = 1;
426				for (; (c = *bits) > 32; bits++)
427					putchar(c);
428			} else
429				for (; *bits > 32; bits++)
430					;
431		}
432		putchar('>');
433	}
434}
435
436void
437usage()
438{
439	(void)fprintf(stderr, "usage: mt [-f device] command [ count ]\n");
440	exit(1);
441}
442
443#if defined (__FreeBSD__)
444
445struct densities {
446	int dens;
447	int bpmm;
448	int bpi;
449	const char *name;
450} dens[] = {
451	/*
452	 * Taken from T10 Project 997D
453	 * SCSI-3 Stream Device Commands (SSC)
454	 * Revision 11, 4-Nov-97
455	 */
456	/*Num.  bpmm    bpi     Reference     */
457	{ 0x1,	32,	800,	"X3.22-1983" },
458	{ 0x2,	63,	1600,	"X3.39-1986" },
459	{ 0x3,	246,	6250,	"X3.54-1986" },
460	{ 0x5,	315,	8000,	"X3.136-1986" },
461	{ 0x6,	126,	3200,	"X3.157-1987" },
462	{ 0x7,	252,	6400,	"X3.116-1986" },
463	{ 0x8,	315,	8000,	"X3.158-1987" },
464	{ 0x9,	491,	37871,	"X3.180" },
465	{ 0xA,	262,	6667,	"X3B5/86-199" },
466	{ 0xB,	63,	1600,	"X3.56-1986" },
467	{ 0xC,	500,	12690,	"HI-TC1" },
468	{ 0xD,	999,	25380,	"HI-TC2" },
469	{ 0xF,	394,	10000,	"QIC-120" },
470	{ 0x10,	394,	10000,	"QIC-150" },
471	{ 0x11,	630,	16000,	"QIC-320" },
472	{ 0x12,	2034,	51667,	"QIC-1350" },
473	{ 0x13,	2400,	61000,	"X3B5/88-185A" },
474	{ 0x14,	1703,	43245,	"X3.202-1991" },
475	{ 0x15,	1789,	45434,	"ECMA TC17" },
476	{ 0x16,	394,	10000,	"X3.193-1990" },
477	{ 0x17,	1673,	42500,	"X3B5/91-174" },
478	{ 0x18,	1673,	42500,	"X3B5/92-50" },
479	{ 0x1C, 1654,	42000,	"QIC-385M" },
480	{ 0x1D,	1512,	38400,	"QIC-410M" },
481	{ 0x1E, 1385,	36000,	"QIC-1000C" },
482	{ 0x1F,	2666,	67733,	"QIC-2100C" },
483	{ 0x20, 2666,	67733,	"QIC-6GB(M)" },
484	{ 0x21,	2666,	67733,	"QIC-20GB(C)" },
485	{ 0x22,	1600,	40640,	"QIC-2GB(C)" },
486	{ 0x23, 2666,	67733,	"QIC-875M" },
487	{ 0x24,	2400,	61000,	"DDS-2" },
488	{ 0x25,	3816,	97000,	"DDS-3" },
489	{ 0x26,	3816,	97000,	"DDS-4" },
490	{ 0x27,	3056,	77611,	"Mammoth" },
491	{ 0x28,	1491,	37871,	"X3.224" },
492	{ 0, 0, 0, NULL }
493};
494
495struct compression_types {
496	u_int32_t	comp_number;
497	const char 	*name;
498} comp_types[] = {
499	{ 0x00, "none" },
500	{ 0x00, "off" },
501	{ 0x10, "IDRC" },
502	{ 0x20, "DCLZ" },
503	{ 0xffffffff, "enable" },
504	{ 0xffffffff, "on" },
505	{ 0xf0f0f0f0, NULL}
506};
507
508const char *
509denstostring(int d)
510{
511	static char buf[20];
512	struct densities *sd;
513
514	for (sd = dens; sd->dens; sd++)
515		if (sd->dens == d)
516			break;
517	if (sd->dens == 0) {
518		sprintf(buf, "0x%02x", d);
519		return buf;
520	} else
521		return sd->name;
522}
523
524/*
525 * Given a specific density number, return either the bits per inch or bits
526 * per millimeter for the given density.
527 */
528int
529denstobp(int d, int bpi)
530{
531	struct densities *sd;
532
533	for (sd = dens; sd->dens; sd++)
534		if (sd->dens == d)
535			break;
536	if (sd->dens == 0)
537		return(0);
538	else {
539		if (bpi)
540			return(sd->bpi);
541		else
542			return(sd->bpmm);
543	}
544}
545
546int
547stringtodens(const char *s)
548{
549	struct densities *sd;
550	size_t l = strlen(s);
551
552	for (sd = dens; sd->dens; sd++)
553		if (strncasecmp(sd->name, s, l) == 0)
554			break;
555	return sd->dens;
556}
557
558
559const char *
560getblksiz(int bs)
561{
562	static char buf[25];
563	if (bs == 0)
564		return "variable";
565	else {
566		sprintf(buf, "%d bytes", bs);
567		return buf;
568	}
569}
570
571const char *
572comptostring(u_int32_t comp)
573{
574	static char buf[20];
575	struct compression_types *ct;
576
577	if (comp == MT_COMP_DISABLED)
578		return "disabled";
579	else if (comp == MT_COMP_UNSUPP)
580		return "unsupported";
581
582	for (ct = comp_types; ct->name; ct++)
583		if (ct->comp_number == comp)
584			break;
585
586	if (ct->comp_number == 0xf0f0f0f0) {
587		sprintf(buf, "0x%2x", comp);
588		return(buf);
589	} else
590		return(ct->name);
591}
592
593u_int32_t
594stringtocomp(const char *s)
595{
596	struct compression_types *ct;
597	size_t l = strlen(s);
598
599	for (ct = comp_types; ct->name; ct++)
600		if (strncasecmp(ct->name, s, l) == 0)
601			break;
602
603	return(ct->comp_number);
604}
605
606void
607st_status(struct mtget *bp)
608{
609	printf("Mode      Density         Blocksize      bpi      "
610	       "Compression\n"
611	       "Current:  %-12s    %-12s   %-7d  %s\n"
612	       "---------available modes---------\n"
613	       "0:        %-12s    %-12s   %-7d  %s\n"
614	       "1:        %-12s    %-12s   %-7d  %s\n"
615	       "2:        %-12s    %-12s   %-7d  %s\n"
616	       "3:        %-12s    %-12s   %-7d  %s\n",
617	       denstostring(bp->mt_density), getblksiz(bp->mt_blksiz),
618	       denstobp(bp->mt_density, TRUE), comptostring(bp->mt_comp),
619	       denstostring(bp->mt_density0), getblksiz(bp->mt_blksiz0),
620	       denstobp(bp->mt_density0, TRUE), comptostring(bp->mt_comp0),
621	       denstostring(bp->mt_density1), getblksiz(bp->mt_blksiz1),
622	       denstobp(bp->mt_density1, TRUE), comptostring(bp->mt_comp1),
623	       denstostring(bp->mt_density2), getblksiz(bp->mt_blksiz2),
624	       denstobp(bp->mt_density2, TRUE), comptostring(bp->mt_comp2),
625	       denstostring(bp->mt_density3), getblksiz(bp->mt_blksiz3),
626	       denstobp(bp->mt_density3, TRUE), comptostring(bp->mt_comp3));
627
628	if (bp->mt_dsreg != MTIO_DSREG_NIL) {
629		auto char foo[32];
630		const char *sfmt = "Current Driver State: %s.\n";
631		printf("---------------------------------\n");
632		switch (bp->mt_dsreg) {
633		case MTIO_DSREG_REST:
634			printf(sfmt, "at rest");
635			break;
636		case MTIO_DSREG_RBSY:
637			printf(sfmt, "Communicating with drive");
638			break;
639		case MTIO_DSREG_WR:
640			printf(sfmt, "Writing");
641			break;
642		case MTIO_DSREG_FMK:
643			printf(sfmt, "Writing Filemarks");
644			break;
645		case MTIO_DSREG_ZER:
646			printf(sfmt, "Erasing");
647			break;
648		case MTIO_DSREG_RD:
649			printf(sfmt, "Reading");
650			break;
651		case MTIO_DSREG_FWD:
652			printf(sfmt, "Spacing Forward");
653			break;
654		case MTIO_DSREG_REV:
655			printf(sfmt, "Spacing Reverse");
656			break;
657		case MTIO_DSREG_POS:
658			printf(sfmt,
659			    "Hardware Positioning (direction unknown)");
660			break;
661		case MTIO_DSREG_REW:
662			printf(sfmt, "Rewinding");
663			break;
664		case MTIO_DSREG_TEN:
665			printf(sfmt, "Retensioning");
666			break;
667		case MTIO_DSREG_UNL:
668			printf(sfmt, "Unloading");
669			break;
670		case MTIO_DSREG_LD:
671			printf(sfmt, "Loading");
672			break;
673		default:
674			(void) sprintf(foo, "Unknown state 0x%x", bp->mt_dsreg);
675			printf(sfmt, foo);
676			break;
677		}
678	}
679	if (bp->mt_fileno == (daddr_t) -1 || bp->mt_blkno == (daddr_t) -1)
680		return;
681	printf("---------------------------------\n");
682	printf("File Number: %ld\tRecord Number: %ld\n", bp->mt_fileno,
683	    bp->mt_blkno);
684}
685
686void
687warn_eof(void)
688{
689	fprintf(stderr,
690		"The \"eof\" command has been disabled.\n"
691		"Use \"weof\" if you really want to write end-of-file marks,\n"
692		"or \"eom\" if you rather want to skip to the end of "
693		"recorded medium.\n");
694	exit(1);
695}
696
697#endif /* defined (__FreeBSD__) */
698