320 lines
8.3 KiB
C
320 lines
8.3 KiB
C
/* $NetBSD: mt.c,v 1.31 1999/07/21 17:10:08 tron Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 1980, 1993
|
|
* The Regents of the University of California. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
#ifndef lint
|
|
__COPYRIGHT("@(#) Copyright (c) 1980, 1993\n\
|
|
The Regents of the University of California. All rights reserved.\n");
|
|
#endif /* not lint */
|
|
|
|
#ifndef lint
|
|
#if 0
|
|
static char sccsid[] = "@(#)mt.c 8.2 (Berkeley) 6/6/93";
|
|
#else
|
|
__RCSID("$NetBSD: mt.c,v 1.31 1999/07/21 17:10:08 tron Exp $");
|
|
#endif
|
|
#endif /* not lint */
|
|
|
|
/*
|
|
* mt --
|
|
* magnetic tape manipulation program
|
|
*/
|
|
#include <sys/types.h>
|
|
#include <sys/ioctl.h>
|
|
#include <sys/mtio.h>
|
|
#include <sys/stat.h>
|
|
|
|
#include <ctype.h>
|
|
#include <err.h>
|
|
#include <fcntl.h>
|
|
#include <paths.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
|
|
#include <rmt.h>
|
|
|
|
/* pseudo ioctl constants */
|
|
#define MTASF 100
|
|
|
|
struct commands {
|
|
const char *c_name; /* command */
|
|
int c_spcl; /* ioctl request */
|
|
int c_code; /* ioctl code for MTIOCTOP command */
|
|
int c_ronly; /* open tape read-only */
|
|
int c_mincount; /* min allowed count value */
|
|
};
|
|
|
|
const struct commands com[] = {
|
|
{ "asf", MTIOCTOP, MTASF, 1, 1 },
|
|
{ "blocksize", MTIOCTOP, MTSETBSIZ, 1, 0 },
|
|
{ "bsf", MTIOCTOP, MTBSF, 1, 1 },
|
|
{ "bsr", MTIOCTOP, MTBSR, 1, 1 },
|
|
{ "compress", MTIOCTOP, MTCMPRESS, 1, 0 },
|
|
{ "density", MTIOCTOP, MTSETDNSTY, 1, 0 },
|
|
{ "eof", MTIOCTOP, MTWEOF, 0, 1 },
|
|
{ "eom", MTIOCTOP, MTEOM, 1, 0 },
|
|
{ "erase", MTIOCTOP, MTERASE, 0, 0 },
|
|
{ "fsf", MTIOCTOP, MTFSF, 1, 1 },
|
|
{ "fsr", MTIOCTOP, MTFSR, 1, 1 },
|
|
{ "offline", MTIOCTOP, MTOFFL, 1, 0 },
|
|
{ "rdhpos", MTIOCRDHPOS, 0, 1, 0 },
|
|
{ "rdspos", MTIOCRDSPOS, 0, 1, 0 },
|
|
{ "retension", MTIOCTOP, MTRETEN, 1, 0 },
|
|
{ "rewind", MTIOCTOP, MTREW, 1, 0 },
|
|
{ "rewoffl", MTIOCTOP, MTOFFL, 1, 0 },
|
|
{ "setblk", MTIOCTOP, MTSETBSIZ, 1, 0 },
|
|
{ "setdensity", MTIOCTOP, MTSETDNSTY, 1, 0 },
|
|
{ "sethpos", MTIOCHLOCATE, 0, 1, 0 },
|
|
{ "setspos", MTIOCSLOCATE, 0, 1, 0 },
|
|
{ "status", MTIOCGET, MTNOP, 1, 0 },
|
|
{ "weof", MTIOCTOP, MTWEOF, 0, 1 },
|
|
{ "eew", MTIOCTOP, MTEWARN, 1, 0 },
|
|
{ NULL }
|
|
};
|
|
|
|
void printreg __P((const char *, u_int, const char *));
|
|
void status __P((struct mtget *));
|
|
void usage __P((void));
|
|
int main __P((int, char *[]));
|
|
|
|
int
|
|
main(argc, argv)
|
|
int argc;
|
|
char *argv[];
|
|
{
|
|
const struct commands *comp = (const struct commands *) NULL;
|
|
struct mtget mt_status;
|
|
struct mtop mt_com;
|
|
int ch, len, mtfd, flags;
|
|
char *p;
|
|
const char *tape;
|
|
int count;
|
|
|
|
if ((tape = getenv("TAPE")) == NULL)
|
|
tape = _PATH_DEFTAPE;
|
|
|
|
while ((ch = getopt(argc, argv, "f:t:")) != -1)
|
|
switch (ch) {
|
|
case 'f':
|
|
case 't':
|
|
tape = optarg;
|
|
break;
|
|
case '?':
|
|
default:
|
|
usage();
|
|
}
|
|
argc -= optind;
|
|
argv += optind;
|
|
|
|
if (argc < 1 || argc > 2)
|
|
usage();
|
|
|
|
len = strlen(p = *argv++);
|
|
for (comp = com;; comp++) {
|
|
if (comp->c_name == NULL)
|
|
errx(1, "%s: unknown command", p);
|
|
if (strncmp(p, comp->c_name, len) == 0)
|
|
break;
|
|
}
|
|
|
|
if (*argv) {
|
|
count = strtol(*argv, &p, 10);
|
|
if (count < comp->c_mincount || *p)
|
|
errx(2, "%s: illegal count", *argv);
|
|
} else
|
|
count = 1;
|
|
|
|
flags = comp->c_ronly ? O_RDONLY : O_WRONLY;
|
|
|
|
if ((mtfd = open(tape, flags)) < 0)
|
|
err(2, "%s", tape);
|
|
|
|
switch (comp->c_spcl) {
|
|
case MTIOCTOP:
|
|
if (comp->c_code == MTASF) {
|
|
/* If mtget.mt_fileno was implemented, We could
|
|
compute the minimal seek needed to position
|
|
the tape. Until then, rewind and seek from
|
|
begining-of-tape */
|
|
|
|
mt_com.mt_op = MTREW;
|
|
mt_com.mt_count = 1;
|
|
if (ioctl(mtfd, MTIOCTOP, &mt_com) < 0)
|
|
err(2, "%s", tape);
|
|
|
|
mt_com.mt_op = MTFSF;
|
|
mt_com.mt_count = count;
|
|
if (ioctl(mtfd, MTIOCTOP, &mt_com) < 0)
|
|
err(2, "%s", tape);
|
|
|
|
} else {
|
|
mt_com.mt_op = comp->c_code;
|
|
mt_com.mt_count = count;
|
|
|
|
if (ioctl(mtfd, MTIOCTOP, &mt_com) < 0)
|
|
err(2, "%s: %s", tape, comp->c_name);
|
|
|
|
}
|
|
break;
|
|
|
|
case MTIOCGET:
|
|
if (ioctl(mtfd, MTIOCGET, &mt_status) < 0)
|
|
err(2, "%s: %s", tape, comp->c_name);
|
|
status(&mt_status);
|
|
break;
|
|
|
|
case MTIOCRDSPOS:
|
|
case MTIOCRDHPOS:
|
|
if (ioctl(mtfd, comp->c_spcl, (caddr_t) &count) < 0)
|
|
err(2, "%s", tape);
|
|
printf("%s: block location %u\n", tape, (unsigned int) count);
|
|
break;
|
|
|
|
case MTIOCSLOCATE:
|
|
case MTIOCHLOCATE:
|
|
if (ioctl(mtfd, comp->c_spcl, (caddr_t) &count) < 0)
|
|
err(2, "%s", tape);
|
|
break;
|
|
|
|
default:
|
|
errx(1, "internal error: unknown request %d", comp->c_spcl);
|
|
}
|
|
|
|
exit(0);
|
|
/* NOTREACHED */
|
|
}
|
|
|
|
#if defined(sun) && !defined(__SVR4)
|
|
#include <sundev/tmreg.h>
|
|
#include <sundev/arreg.h>
|
|
#endif
|
|
|
|
#ifdef tahoe
|
|
#include <tahoe/vba/cyreg.h>
|
|
#endif
|
|
|
|
const struct tape_desc {
|
|
short t_type; /* type of magtape device */
|
|
const char *t_name; /* printing name */
|
|
const char *t_dsbits; /* "drive status" register */
|
|
const char *t_erbits; /* "error" register */
|
|
} tapes[] = {
|
|
#if defined(sun) && !defined(__SVR4)
|
|
{ MT_ISCPC, "TapeMaster", TMS_BITS, 0 },
|
|
{ MT_ISAR, "Archive", ARCH_CTRL_BITS, ARCH_BITS },
|
|
#endif
|
|
#ifdef tahoe
|
|
{ MT_ISCY, "cipher", CYS_BITS, CYCW_BITS },
|
|
#endif
|
|
#define SCSI_DS_BITS "\20\5WriteProtect\2Mounted"
|
|
{ 0x7, "SCSI", SCSI_DS_BITS, "76543210" },
|
|
{ 0 }
|
|
};
|
|
|
|
|
|
/*
|
|
* Interpret the status buffer returned
|
|
*/
|
|
void
|
|
status(bp)
|
|
struct mtget *bp;
|
|
{
|
|
const struct tape_desc *mt;
|
|
|
|
for (mt = tapes;; mt++) {
|
|
if (mt->t_type == 0) {
|
|
(void)printf("%d: unknown tape drive type\n",
|
|
bp->mt_type);
|
|
return;
|
|
}
|
|
if (mt->t_type == bp->mt_type)
|
|
break;
|
|
}
|
|
(void)printf("%s tape drive, residual=%d\n", mt->t_name, bp->mt_resid);
|
|
printreg("ds", bp->mt_dsreg, mt->t_dsbits);
|
|
printreg("\ner", bp->mt_erreg, mt->t_erbits);
|
|
(void)putchar('\n');
|
|
(void)printf("blocksize: %d (%d, %d, %d, %d)\n",
|
|
bp->mt_blksiz, bp->mt_mblksiz[0], bp->mt_mblksiz[1],
|
|
bp->mt_mblksiz[2], bp->mt_mblksiz[3]);
|
|
(void)printf("density: %d (%d, %d, %d, %d)\n",
|
|
bp->mt_density, bp->mt_mdensity[0], bp->mt_mdensity[1],
|
|
bp->mt_mdensity[2], bp->mt_mdensity[3]);
|
|
}
|
|
|
|
/*
|
|
* Print a register a la the %b format of the kernel's printf.
|
|
*/
|
|
void
|
|
printreg(s, v, bits)
|
|
const char *s;
|
|
u_int v;
|
|
const char *bits;
|
|
{
|
|
int i, any = 0;
|
|
char c;
|
|
|
|
if (bits && *bits == 8)
|
|
printf("%s=%o", s, v);
|
|
else
|
|
printf("%s=%x", s, v);
|
|
bits++;
|
|
if (v && *bits) {
|
|
putchar('<');
|
|
while ((i = *bits++)) {
|
|
if (v & (1 << (i-1))) {
|
|
if (any)
|
|
putchar(',');
|
|
any = 1;
|
|
for (; (c = *bits) > 32; bits++)
|
|
putchar(c);
|
|
} else
|
|
for (; *bits > 32; bits++)
|
|
;
|
|
}
|
|
putchar('>');
|
|
}
|
|
}
|
|
|
|
void
|
|
usage()
|
|
{
|
|
(void)fprintf(stderr, "usage: mt [-f device] command [ count ]\n");
|
|
exit(1);
|
|
/* NOTREACHED */
|
|
}
|