69765472a3
2) Add in the set of {sethpos,setspos,rdhpos,rdspos) commands to implement the
Hardware && SCSI Logical Block position ioctls.
592 lines
14 KiB
C
592 lines
14 KiB
C
/*
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* Copyright (c) 1980, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef lint
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static const char copyright[] =
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"@(#) Copyright (c) 1980, 1993\n\
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The Regents of the University of California. All rights reserved.\n";
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#endif /* not lint */
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#ifndef lint
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#if 0
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static char sccsid[] = "@(#)mt.c 8.2 (Berkeley) 5/4/95";
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#endif
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static const char rcsid[] =
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"$Id: mt.c,v 1.16 1998/10/03 10:58:54 dfr Exp $";
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#endif /* not lint */
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/*
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* mt --
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* magnetic tape manipulation program
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*/
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#include <sys/types.h>
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#include <sys/ioctl.h>
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#include <sys/mtio.h>
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#include <ctype.h>
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#include <err.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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/* the appropriate sections of <sys/mtio.h> are also #ifdef'd for FreeBSD */
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#if defined(__FreeBSD__)
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/* c_flags */
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#define NEED_2ARGS 0x01
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#define ZERO_ALLOWED 0x02
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#define IS_DENSITY 0x04
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#define DISABLE_THIS 0x08
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#define IS_COMP 0x10
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#endif /* defined(__FreeBSD__) */
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#ifndef TRUE
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#define TRUE 1
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#endif
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#ifndef FALSE
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#define FALSE 0
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#endif
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struct commands {
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char *c_name;
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int c_code;
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int c_ronly;
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#if defined(__FreeBSD__)
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int c_flags;
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#endif /* defined(__FreeBSD__) */
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} com[] = {
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{ "bsf", MTBSF, 1 },
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{ "bsr", MTBSR, 1 },
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#if defined(__FreeBSD__)
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/* XXX FreeBSD considered "eof" dangerous, since it's being
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confused with "eom" (and is an alias for "weof" anyway) */
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{ "eof", MTWEOF, 0, DISABLE_THIS },
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#else
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{ "eof", MTWEOF, 0 },
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#endif
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{ "fsf", MTFSF, 1 },
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{ "fsr", MTFSR, 1 },
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{ "offline", MTOFFL, 1 },
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{ "rewind", MTREW, 1 },
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{ "rewoffl", MTOFFL, 1 },
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{ "status", MTNOP, 1 },
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#if defined(__FreeBSD__)
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{ "weof", MTWEOF, 0, ZERO_ALLOWED },
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#else
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{ "weof", MTWEOF, 0 },
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#endif
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#if defined(__FreeBSD__)
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{ "erase", MTERASE, 0, ZERO_ALLOWED},
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{ "blocksize", MTSETBSIZ, 0, NEED_2ARGS|ZERO_ALLOWED },
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{ "density", MTSETDNSTY, 0, NEED_2ARGS|ZERO_ALLOWED|IS_DENSITY },
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{ "eom", MTEOD, 1 },
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{ "eod", MTEOD, 1 },
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{ "comp", MTCOMP, 0, NEED_2ARGS|ZERO_ALLOWED|IS_COMP },
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{ "retension", MTRETENS, 1 },
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{ "rdhpos", MTIOCRDHPOS, 0 },
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{ "rdspos", MTIOCRDSPOS, 0 },
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{ "sethpos", MTIOCHLOCATE, 0, NEED_2ARGS|ZERO_ALLOWED },
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{ "setspos", MTIOCSLOCATE, 0, NEED_2ARGS|ZERO_ALLOWED },
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#endif /* defined(__FreeBSD__) */
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{ NULL }
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};
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void printreg __P((char *, u_int, char *));
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void status __P((struct mtget *));
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void usage __P((void));
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#if defined (__FreeBSD__)
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void st_status (struct mtget *);
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int stringtodens (const char *s);
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const char *denstostring (int d);
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int denstobp(int d, int bpi);
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u_int32_t stringtocomp(const char *s);
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const char * comptostring(u_int32_t comp);
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void warn_eof __P((void));
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#endif /* defined (__FreeBSD__) */
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int
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main(argc, argv)
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int argc;
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char *argv[];
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{
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register struct commands *comp;
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struct mtget mt_status;
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struct mtop mt_com;
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int ch, len, mtfd;
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char *p, *tape;
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if ((tape = getenv("TAPE")) == NULL)
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tape = DEFTAPE;
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while ((ch = getopt(argc, argv, "f:t:")) != -1)
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switch(ch) {
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case 'f':
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case 't':
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tape = optarg;
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break;
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case '?':
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default:
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usage();
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}
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argc -= optind;
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argv += optind;
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if (argc < 1 || argc > 2)
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usage();
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len = strlen(p = *argv++);
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for (comp = com;; comp++) {
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if (comp->c_name == NULL)
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errx(1, "%s: unknown command", p);
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if (strncmp(p, comp->c_name, len) == 0)
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break;
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}
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#if defined(__FreeBSD__)
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if((comp->c_flags & NEED_2ARGS) && argc != 2)
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usage();
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if(comp->c_flags & DISABLE_THIS) {
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warn_eof();
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}
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#endif /* defined(__FreeBSD__) */
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if ((mtfd = open(tape, comp->c_ronly ? O_RDONLY : O_RDWR)) < 0)
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err(1, "%s", tape);
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if (comp->c_code != MTNOP) {
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mt_com.mt_op = comp->c_code;
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if (*argv) {
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#if defined (__FreeBSD__)
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if (!isdigit(**argv) &&
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comp->c_flags & IS_DENSITY) {
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const char *dcanon;
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mt_com.mt_count = stringtodens(*argv);
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if (mt_com.mt_count == 0)
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errx(1, "%s: unknown density", *argv);
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dcanon = denstostring(mt_com.mt_count);
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if (strcmp(dcanon, *argv) != 0)
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printf(
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"Using \"%s\" as an alias for %s\n",
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*argv, dcanon);
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p = "";
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} else if (!isdigit(**argv) &&
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comp->c_flags & IS_COMP) {
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mt_com.mt_count = stringtocomp(*argv);
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if ((u_int32_t)mt_com.mt_count == 0xf0f0f0f0)
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errx(1, "%s: unknown compression",
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*argv);
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p = "";
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} else
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/* allow for hex numbers; useful for density */
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mt_com.mt_count = strtol(*argv, &p, 0);
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#else
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mt_com.mt_count = strtol(*argv, &p, 10);
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#endif /* defined(__FreeBSD__) */
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if (mt_com.mt_count <=
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#if defined (__FreeBSD__)
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((comp->c_flags & ZERO_ALLOWED)? -1: 0)
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&& ((comp->c_flags & IS_COMP) == 0)
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#else
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0
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#endif /* defined (__FreeBSD__) */
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|| *p)
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errx(1, "%s: illegal count", *argv);
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}
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else
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mt_com.mt_count = 1;
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#if defined(__FreeBSD__)
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switch (comp->c_code) {
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case MTIOCRDHPOS:
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case MTIOCRDSPOS:
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if (ioctl(mtfd, comp->c_code, &mt_com.mt_count) < 0)
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err(2, "%s", tape);
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printf("%s: %s block location %u\n", tape,
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(comp->c_code == MTIOCRDHPOS)? "hardware" :
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"logical", (unsigned int) mt_com.mt_count);
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exit (0);
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/* NOTREACHED */
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case MTIOCSLOCATE:
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case MTIOCHLOCATE:
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if (ioctl(mtfd, comp->c_code, &mt_com.mt_count) < 0)
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err(2, "%s", tape);
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exit (0);
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/* NOTREACHED */
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default:
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break;
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}
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#endif
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if (ioctl(mtfd, MTIOCTOP, &mt_com) < 0)
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err(1, "%s: %s", tape, comp->c_name);
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} else {
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if (ioctl(mtfd, MTIOCGET, &mt_status) < 0)
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err(1, NULL);
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status(&mt_status);
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}
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exit (0);
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/* NOTREACHED */
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}
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#ifdef vax
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#include <vax/mba/mtreg.h>
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#include <vax/mba/htreg.h>
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#include <vax/uba/utreg.h>
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#include <vax/uba/tmreg.h>
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#undef b_repcnt /* argh */
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#include <vax/uba/tsreg.h>
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#endif
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#ifdef sun
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#include <sundev/tmreg.h>
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#include <sundev/arreg.h>
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#endif
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#ifdef tahoe
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#include <tahoe/vba/cyreg.h>
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#endif
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#if defined(__FreeBSD__) && defined(__i386__)
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#include <machine/wtio.h>
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#endif
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struct tape_desc {
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short t_type; /* type of magtape device */
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char *t_name; /* printing name */
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char *t_dsbits; /* "drive status" register */
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char *t_erbits; /* "error" register */
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} tapes[] = {
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#ifdef vax
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{ MT_ISTS, "ts11", 0, TSXS0_BITS },
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{ MT_ISHT, "tm03", HTDS_BITS, HTER_BITS },
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{ MT_ISTM, "tm11", 0, TMER_BITS },
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{ MT_ISMT, "tu78", MTDS_BITS, 0 },
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{ MT_ISUT, "tu45", UTDS_BITS, UTER_BITS },
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#endif
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#ifdef sun
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{ MT_ISCPC, "TapeMaster", TMS_BITS, 0 },
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{ MT_ISAR, "Archive", ARCH_CTRL_BITS, ARCH_BITS },
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#endif
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#ifdef tahoe
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{ MT_ISCY, "cipher", CYS_BITS, CYCW_BITS },
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#endif
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#if defined (__FreeBSD__)
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/*
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* XXX This is weird. The st driver reports the tape drive
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* as 0x7 (MT_ISAR - Sun/Archive compatible); the wt driver
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* either reports MT_ISVIPER1 for an Archive tape, or 0x11
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* (MT_ISMFOUR) for other tapes.
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* XXX for the wt driver, rely on it behaving like a "standard"
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* magtape driver.
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*/
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{ MT_ISAR, "SCSI tape drive", 0, 0 },
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#if defined (__i386__)
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{ MT_ISVIPER1, "Archive Viper", WTDS_BITS, WTER_BITS },
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{ MT_ISMFOUR, "Wangtek", WTDS_BITS, WTER_BITS },
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#endif
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#endif /* defined (__FreeBSD__) */
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{ 0 }
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};
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/*
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* Interpret the status buffer returned
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*/
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void
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status(bp)
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register struct mtget *bp;
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{
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register struct tape_desc *mt;
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for (mt = tapes;; mt++) {
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if (mt->t_type == 0) {
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(void)printf("%d: unknown tape drive type\n",
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bp->mt_type);
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return;
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}
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if (mt->t_type == bp->mt_type)
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break;
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}
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#if defined (__FreeBSD__)
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if(mt->t_type == MT_ISAR)
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st_status(bp);
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else {
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#endif /* defined (__FreeBSD__) */
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(void)printf("%s tape drive, residual=%d\n", mt->t_name, bp->mt_resid);
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printreg("ds", (unsigned short)bp->mt_dsreg, mt->t_dsbits);
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printreg("\ner", (unsigned short)bp->mt_erreg, mt->t_erbits);
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(void)putchar('\n');
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#if defined (__FreeBSD__)
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}
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#endif /* defined (__FreeBSD__) */
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}
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/*
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* Print a register a la the %b format of the kernel's printf.
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*/
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void
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printreg(s, v, bits)
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char *s;
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register u_int v;
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register char *bits;
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{
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register int i, any = 0;
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register char c;
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if (bits && *bits == 8)
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printf("%s=%o", s, v);
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else
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printf("%s=%x", s, v);
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if (!bits)
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return;
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bits++;
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if (v && bits) {
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putchar('<');
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while ((i = *bits++)) {
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if (v & (1 << (i-1))) {
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if (any)
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putchar(',');
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any = 1;
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for (; (c = *bits) > 32; bits++)
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putchar(c);
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} else
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for (; *bits > 32; bits++)
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;
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}
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putchar('>');
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}
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}
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void
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usage()
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{
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(void)fprintf(stderr, "usage: mt [-f device] command [ count ]\n");
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exit(1);
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}
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#if defined (__FreeBSD__)
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struct densities {
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int dens;
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int bpmm;
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int bpi;
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const char *name;
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} dens[] = {
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/*
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* Taken from T10 Project 997D
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* SCSI-3 Stream Device Commands (SSC)
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* Revision 11, 4-Nov-97
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*/
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/*Num. bpmm bpi Reference */
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{ 0x1, 32, 800, "X3.22-1983" },
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{ 0x2, 63, 1600, "X3.39-1986" },
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{ 0x3, 246, 6250, "X3.54-1986" },
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{ 0x5, 315, 8000, "X3.136-1986" },
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{ 0x6, 126, 3200, "X3.157-1987" },
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{ 0x7, 252, 6400, "X3.116-1986" },
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{ 0x8, 315, 8000, "X3.158-1987" },
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{ 0x9, 491, 37871, "X3.180" },
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{ 0xA, 262, 6667, "X3B5/86-199" },
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{ 0xB, 63, 1600, "X3.56-1986" },
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{ 0xC, 500, 12690, "HI-TC1" },
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{ 0xD, 999, 25380, "HI-TC2" },
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{ 0xF, 394, 10000, "QIC-120" },
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{ 0x10, 394, 10000, "QIC-150" },
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{ 0x11, 630, 16000, "QIC-320" },
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{ 0x12, 2034, 51667, "QIC-1350" },
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{ 0x13, 2400, 61000, "X3B5/88-185A" },
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{ 0x14, 1703, 43245, "X3.202-1991" },
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{ 0x15, 1789, 45434, "ECMA TC17" },
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{ 0x16, 394, 10000, "X3.193-1990" },
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{ 0x17, 1673, 42500, "X3B5/91-174" },
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{ 0x18, 1673, 42500, "X3B5/92-50" },
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{ 0x1C, 1654, 42000, "QIC-385M" },
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{ 0x1D, 1512, 38400, "QIC-410M" },
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{ 0x1E, 1385, 36000, "QIC-1000C" },
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{ 0x1F, 2666, 67733, "QIC-2100C" },
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{ 0x20, 2666, 67733, "QIC-6GB(M)" },
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{ 0x21, 2666, 67733, "QIC-20GB(C)" },
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{ 0x22, 1600, 40640, "QIC-2GB(C)" },
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{ 0x23, 2666, 67733, "QIC-875M" },
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{ 0x24, 2400, 61000, "DDS-2" },
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{ 0x25, 3816, 97000, "DDS-3" },
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{ 0x26, 3816, 97000, "DDS-4" },
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{ 0x27, 3056, 77611, "Mammoth" },
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{ 0x28, 1491, 37871, "X3.224" },
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{ 0, 0, 0, NULL }
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};
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struct compression_types {
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u_int32_t comp_number;
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const char *name;
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} comp_types[] = {
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{ 0x00, "none" },
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{ 0x00, "off" },
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{ 0x10, "IDRC" },
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{ 0x20, "DCLZ" },
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{ 0xffffffff, "enable" },
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{ 0xffffffff, "on" },
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{ 0xf0f0f0f0, NULL}
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};
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const char *
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denstostring(int d)
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{
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static char buf[20];
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struct densities *sd;
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for (sd = dens; sd->dens; sd++)
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if (sd->dens == d)
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break;
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if (sd->dens == 0) {
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sprintf(buf, "0x%02x", d);
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return buf;
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} else
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return sd->name;
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}
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/*
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* Given a specific density number, return either the bits per inch or bits
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|
* per millimeter for the given density.
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*/
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int
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denstobp(int d, int bpi)
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|
{
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struct densities *sd;
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for (sd = dens; sd->dens; sd++)
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|
if (sd->dens == d)
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break;
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|
if (sd->dens == 0)
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return(0);
|
|
else {
|
|
if (bpi)
|
|
return(sd->bpi);
|
|
else
|
|
return(sd->bpmm);
|
|
}
|
|
}
|
|
|
|
int
|
|
stringtodens(const char *s)
|
|
{
|
|
struct densities *sd;
|
|
size_t l = strlen(s);
|
|
|
|
for (sd = dens; sd->dens; sd++)
|
|
if (strncasecmp(sd->name, s, l) == 0)
|
|
break;
|
|
return sd->dens;
|
|
}
|
|
|
|
|
|
const char *
|
|
getblksiz(int bs)
|
|
{
|
|
static char buf[25];
|
|
if (bs == 0)
|
|
return "variable";
|
|
else {
|
|
sprintf(buf, "%d bytes", bs);
|
|
return buf;
|
|
}
|
|
}
|
|
|
|
const char *
|
|
comptostring(u_int32_t comp)
|
|
{
|
|
static char buf[20];
|
|
struct compression_types *ct;
|
|
|
|
if (comp == MT_COMP_DISABLED)
|
|
return "disabled";
|
|
else if (comp == MT_COMP_UNSUPP)
|
|
return "unsupported";
|
|
|
|
for (ct = comp_types; ct->name; ct++)
|
|
if (ct->comp_number == comp)
|
|
break;
|
|
|
|
if (ct->comp_number == 0xf0f0f0f0) {
|
|
sprintf(buf, "0x%2x", comp);
|
|
return(buf);
|
|
} else
|
|
return(ct->name);
|
|
}
|
|
|
|
u_int32_t
|
|
stringtocomp(const char *s)
|
|
{
|
|
struct compression_types *ct;
|
|
size_t l = strlen(s);
|
|
|
|
for (ct = comp_types; ct->name; ct++)
|
|
if (strncasecmp(ct->name, s, l) == 0)
|
|
break;
|
|
|
|
return(ct->comp_number);
|
|
}
|
|
|
|
void
|
|
st_status(struct mtget *bp)
|
|
{
|
|
printf("Mode Density Blocksize bpi "
|
|
"Compression\n"
|
|
"Current: %-12s %-12s %-7d %s\n"
|
|
"---------available modes---------\n"
|
|
"0: %-12s %-12s %-7d %s\n"
|
|
"1: %-12s %-12s %-7d %s\n"
|
|
"2: %-12s %-12s %-7d %s\n"
|
|
"3: %-12s %-12s %-7d %s\n",
|
|
denstostring(bp->mt_density), getblksiz(bp->mt_blksiz),
|
|
denstobp(bp->mt_density, TRUE), comptostring(bp->mt_comp),
|
|
denstostring(bp->mt_density0), getblksiz(bp->mt_blksiz0),
|
|
denstobp(bp->mt_density0, TRUE), comptostring(bp->mt_comp0),
|
|
denstostring(bp->mt_density1), getblksiz(bp->mt_blksiz1),
|
|
denstobp(bp->mt_density1, TRUE), comptostring(bp->mt_comp1),
|
|
denstostring(bp->mt_density2), getblksiz(bp->mt_blksiz2),
|
|
denstobp(bp->mt_density2, TRUE), comptostring(bp->mt_comp2),
|
|
denstostring(bp->mt_density3), getblksiz(bp->mt_blksiz3),
|
|
denstobp(bp->mt_density3, TRUE), comptostring(bp->mt_comp3));
|
|
}
|
|
|
|
void
|
|
warn_eof(void)
|
|
{
|
|
fprintf(stderr,
|
|
"The \"eof\" command has been disabled.\n"
|
|
"Use \"weof\" if you really want to write end-of-file marks,\n"
|
|
"or \"eom\" if you rather want to skip to the end of "
|
|
"recorded medium.\n");
|
|
exit(1);
|
|
}
|
|
|
|
#endif /* defined (__FreeBSD__) */
|