mt.c revision 11608
117683Spst/* 239291Sfenner * Copyright (c) 1980, 1993 317683Spst * The Regents of the University of California. All rights reserved. 417683Spst * 517683Spst * Redistribution and use in source and binary forms, with or without 617683Spst * modification, are permitted provided that the following conditions 717683Spst * are met: 817683Spst * 1. Redistributions of source code must retain the above copyright 917683Spst * notice, this list of conditions and the following disclaimer. 1017683Spst * 2. Redistributions in binary form must reproduce the above copyright 1117683Spst * notice, this list of conditions and the following disclaimer in the 1217683Spst * documentation and/or other materials provided with the distribution. 1317683Spst * 3. All advertising materials mentioning features or use of this software 1417683Spst * must display the following acknowledgement: 1517683Spst * This product includes software developed by the University of 1617683Spst * California, Berkeley and its contributors. 1717683Spst * 4. Neither the name of the University nor the names of its contributors 1817683Spst * may be used to endorse or promote products derived from this software 1917683Spst * without specific prior written permission. 20162020Ssam * 21162020Ssam * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 2217683Spst * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 2317683Spst * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24127664Sbms * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25172680Smlaier * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2617683Spst * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2717683Spst * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2875107Sfenner * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2975107Sfenner * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 3075107Sfenner * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 3175107Sfenner * SUCH DAMAGE. 3217683Spst */ 33183102Scsjp 3417683Spst#ifndef lint 3517683Spststatic char copyright[] = 3617683Spst"@(#) Copyright (c) 1980, 1993\n\ 3717683Spst The Regents of the University of California. All rights reserved.\n"; 3817683Spst#endif /* not lint */ 39127664Sbms 4017683Spst#ifndef lint 4117683Spststatic char sccsid[] = "@(#)mt.c 8.1 (Berkeley) 6/6/93"; 42127664Sbms#endif /* not lint */ 4398530Sfenner 44127664Sbms/* 4598530Sfenner * mt -- 46127664Sbms * magnetic tape manipulation program 47127664Sbms */ 4898530Sfenner#include <sys/types.h> 49127664Sbms#include <sys/ioctl.h> 50127664Sbms#include <sys/mtio.h> 51127664Sbms#include <fcntl.h> 52127664Sbms#include <errno.h> 53127664Sbms#include <stdlib.h> 54127664Sbms#include <stdio.h> 55127664Sbms#include <ctype.h> 56127664Sbms#include <string.h> 57127664Sbms 58127664Sbms/* the appropriate sections of <sys/mtio.h> are also #ifdef'd for FreeBSD */ 59127664Sbms#if defined(__FreeBSD__) 60127664Sbms/* c_flags */ 61127664Sbms#define NEED_2ARGS 0x01 6298530Sfenner#define ZERO_ALLOWED 0x02 63127664Sbms#define IS_DENSITY 0x04 64127664Sbms#define DISABLE_THIS 0x08 65147894Ssam#endif /* defined(__FreeBSD__) */ 66127664Sbms 6717683Spststruct commands { 68127664Sbms char *c_name; 69127664Sbms int c_code; 70127664Sbms int c_ronly; 71127664Sbms#if defined(__FreeBSD__) 72127664Sbms int c_flags; 73127664Sbms#endif /* defined(__FreeBSD__) */ 74127664Sbms} com[] = { 75127664Sbms { "bsf", MTBSF, 1 }, 76127664Sbms { "bsr", MTBSR, 1 }, 77127664Sbms#if defined(__FreeBSD__) 78127664Sbms /* XXX FreeBSD considered "eof" dangerous, since it's being 79127664Sbms confused with "eom" (and is an alias for "weof" anyway) */ 80127664Sbms { "eof", MTWEOF, 0, DISABLE_THIS }, 81127664Sbms#else 82127664Sbms { "eof", MTWEOF, 0 }, 83127664Sbms#endif 84127664Sbms { "fsf", MTFSF, 1 }, 85127664Sbms { "fsr", MTFSR, 1 }, 86127664Sbms { "offline", MTOFFL, 1 }, 87127664Sbms { "rewind", MTREW, 1 }, 88127664Sbms { "rewoffl", MTOFFL, 1 }, 89127664Sbms { "status", MTNOP, 1 }, 90183102Scsjp { "weof", MTWEOF, 0 }, 91183102Scsjp#if defined(__FreeBSD__) 92183102Scsjp { "erase", MTERASE, 0 }, 93183102Scsjp { "blocksize", MTSETBSIZ, 0, NEED_2ARGS|ZERO_ALLOWED }, 9417683Spst { "density", MTSETDNSTY, 0, NEED_2ARGS|ZERO_ALLOWED|IS_DENSITY }, 9517683Spst { "eom", MTEOD, 1 }, 9617683Spst { "comp", MTCOMP, 0, NEED_2ARGS|ZERO_ALLOWED }, 9717683Spst#endif /* defined(__FreeBSD__) */ 9817683Spst { NULL } 9917683Spst}; 10017683Spst 10117683Spstvoid err __P((const char *, ...)); 10217683Spstvoid printreg __P((char *, u_int, char *)); 10317683Spstvoid status __P((struct mtget *)); 104127664Sbmsvoid usage __P((void)); 105127664Sbms#if defined (__FreeBSD__) 106127664Sbmsvoid st_status (struct mtget *); 107127664Sbmsint stringtodens (const char *s); 10817683Spstconst char *denstostring (int d); 10917683Spstvoid warn_eof __P((void)); 11017683Spst#endif /* defined (__FreeBSD__) */ 11117683Spst 112127664Sbmsint 11356889Sfennermain(argc, argv) 114127664Sbms int argc; 115162012Ssam char *argv[]; 116127664Sbms{ 117127664Sbms register struct commands *comp; 118127664Sbms struct mtget mt_status; 119127664Sbms struct mtop mt_com; 12017683Spst int ch, len, mtfd; 12117683Spst char *p, *tape; 12217683Spst 12398530Sfenner if ((tape = getenv("TAPE")) == NULL) 12498530Sfenner tape = DEFTAPE; 12598530Sfenner 12698530Sfenner while ((ch = getopt(argc, argv, "f:t:")) != EOF) 12798530Sfenner switch(ch) { 12898530Sfenner case 'f': 12998530Sfenner case 't': 13098530Sfenner tape = optarg; 13198530Sfenner break; 13298530Sfenner case '?': 13398530Sfenner default: 13498530Sfenner usage(); 13598530Sfenner } 13617683Spst argc -= optind; 13775107Sfenner argv += optind; 13875107Sfenner 13917683Spst if (argc < 1 || argc > 2) 14017683Spst usage(); 14117683Spst 14217683Spst len = strlen(p = *argv++); 14317683Spst for (comp = com;; comp++) { 14417683Spst if (comp->c_name == NULL) 14517683Spst err("%s: unknown command", p); 14617683Spst if (strncmp(p, comp->c_name, len) == 0) 147183102Scsjp break; 148183102Scsjp } 149183102Scsjp#if defined(__FreeBSD__) 150183102Scsjp if((comp->c_flags & NEED_2ARGS) && argc != 2) 151183102Scsjp usage(); 152183102Scsjp if(comp->c_flags & DISABLE_THIS) { 153183102Scsjp warn_eof(); 154183102Scsjp } 155183102Scsjp#endif /* defined(__FreeBSD__) */ 156183102Scsjp if ((mtfd = open(tape, comp->c_ronly ? O_RDONLY : O_RDWR)) < 0) 157127664Sbms err("%s: %s", tape, strerror(errno)); 158183102Scsjp if (comp->c_code != MTNOP) { 159183102Scsjp mt_com.mt_op = comp->c_code; 160183102Scsjp if (*argv) { 161183102Scsjp#if defined (__FreeBSD__) 162183102Scsjp if (!isdigit(**argv) && 163183102Scsjp comp->c_flags & IS_DENSITY) { 164183102Scsjp const char *dcanon; 165183102Scsjp mt_com.mt_count = stringtodens(*argv); 166183102Scsjp if (mt_com.mt_count == 0) 167183102Scsjp err("%s: unknown density", *argv); 168183102Scsjp dcanon = denstostring(mt_com.mt_count); 169183102Scsjp if (strcmp(dcanon, *argv) != 0) 170183102Scsjp printf( 171183102Scsjp "Using \"%s\" as an alias for %s\n", 172183102Scsjp *argv, dcanon); 173183102Scsjp p = ""; 174183102Scsjp } else 175183102Scsjp /* allow for hex numbers; useful for density */ 176183102Scsjp mt_com.mt_count = strtol(*argv, &p, 0); 177183102Scsjp#else 178183102Scsjp mt_com.mt_count = strtol(*argv, &p, 10); 179183102Scsjp#endif /* defined(__FreeBSD__) */ 180183102Scsjp if (mt_com.mt_count <= 181183102Scsjp#if defined (__FreeBSD__) 182183102Scsjp ((comp->c_flags & ZERO_ALLOWED)? -1: 0) 183183102Scsjp#else 184183102Scsjp 0 185183102Scsjp#endif /* defined (__FreeBSD__) */ 186183102Scsjp || *p) 187183102Scsjp err("%s: illegal count", *argv); 188183102Scsjp } 189183102Scsjp else 190183102Scsjp mt_com.mt_count = 1; 191183102Scsjp if (ioctl(mtfd, MTIOCTOP, &mt_com) < 0) 192183102Scsjp err("%s: %s: %s", tape, comp->c_name, strerror(errno)); 193183102Scsjp } else { 194183102Scsjp if (ioctl(mtfd, MTIOCGET, &mt_status) < 0) 195183102Scsjp err("%s", strerror(errno)); 196183102Scsjp status(&mt_status); 197183102Scsjp } 198183102Scsjp exit (0); 199183102Scsjp /* NOTREACHED */ 200183102Scsjp} 201183102Scsjp 202183102Scsjp#ifdef vax 203183102Scsjp#include <vax/mba/mtreg.h> 204183102Scsjp#include <vax/mba/htreg.h> 205183102Scsjp 206183102Scsjp#include <vax/uba/utreg.h> 207183102Scsjp#include <vax/uba/tmreg.h> 208183102Scsjp#undef b_repcnt /* argh */ 209183102Scsjp#include <vax/uba/tsreg.h> 210183102Scsjp#endif 211183102Scsjp 212183102Scsjp#ifdef sun 213183102Scsjp#include <sundev/tmreg.h> 214183102Scsjp#include <sundev/arreg.h> 215183102Scsjp#endif 216183102Scsjp 217183102Scsjp#ifdef tahoe 218183102Scsjp#include <tahoe/vba/cyreg.h> 219183102Scsjp#endif 220183102Scsjp 221183102Scsjpstruct tape_desc { 222183102Scsjp short t_type; /* type of magtape device */ 223183102Scsjp char *t_name; /* printing name */ 224183102Scsjp char *t_dsbits; /* "drive status" register */ 225183102Scsjp char *t_erbits; /* "error" register */ 226183102Scsjp} tapes[] = { 227183102Scsjp#ifdef vax 228183102Scsjp { MT_ISTS, "ts11", 0, TSXS0_BITS }, 229183102Scsjp { MT_ISHT, "tm03", HTDS_BITS, HTER_BITS }, 230183102Scsjp { MT_ISTM, "tm11", 0, TMER_BITS }, 231183102Scsjp { MT_ISMT, "tu78", MTDS_BITS, 0 }, 232183102Scsjp { MT_ISUT, "tu45", UTDS_BITS, UTER_BITS }, 233183102Scsjp#endif 234183102Scsjp#ifdef sun 235183102Scsjp { MT_ISCPC, "TapeMaster", TMS_BITS, 0 }, 236183102Scsjp { MT_ISAR, "Archive", ARCH_CTRL_BITS, ARCH_BITS }, 237183102Scsjp#endif 238183102Scsjp#ifdef tahoe 239183102Scsjp { MT_ISCY, "cipher", CYS_BITS, CYCW_BITS }, 240183102Scsjp#endif 241183102Scsjp#if defined (__FreeBSD__) 242183102Scsjp /* 243183102Scsjp * XXX This is terrific. The st driver reports the tape drive 244183102Scsjp * as 0x7 (MT_ISAR - Sun/Archive compatible); the wt driver 245183102Scsjp * either reports MT_ISVIPER1 for an Archive tape, or 0x11 246183102Scsjp * (MT_ISMFOUR) for other tapes. 247183102Scsjp * XXX for the wt driver, rely on it behaving like a "standard" 248183102Scsjp * magtape driver. 249183102Scsjp */ 250183102Scsjp { MT_ISAR, "SCSI tape drive", 0, 0 }, 251183102Scsjp { MT_ISVIPER1, "Archive Viper", 0, 0 }, 252183102Scsjp { MT_ISMFOUR, "Wangtek", 0, 0 }, 253183102Scsjp#endif /* defined (__FreeBSD__) */ 254183102Scsjp { 0 } 255183102Scsjp}; 256183102Scsjp 257183102Scsjp/* 258183102Scsjp * Interpret the status buffer returned 259183102Scsjp */ 260183102Scsjpvoid 261183102Scsjpstatus(bp) 262183102Scsjp register struct mtget *bp; 263183102Scsjp{ 264183102Scsjp register struct tape_desc *mt; 265183102Scsjp 266183102Scsjp for (mt = tapes;; mt++) { 267183102Scsjp if (mt->t_type == 0) { 268183102Scsjp (void)printf("%d: unknown tape drive type\n", 269183102Scsjp bp->mt_type); 270183102Scsjp return; 271183102Scsjp } 272183102Scsjp if (mt->t_type == bp->mt_type) 273183102Scsjp break; 274183102Scsjp } 275183102Scsjp#if defined (__FreeBSD__) 276183102Scsjp if(mt->t_type == MT_ISAR) 277183102Scsjp st_status(bp); 278183102Scsjp else { 279183102Scsjp#endif /* defined (__FreeBSD__) */ 280183102Scsjp (void)printf("%s tape drive, residual=%d\n", mt->t_name, bp->mt_resid); 281183102Scsjp printreg("ds", bp->mt_dsreg, mt->t_dsbits); 282183102Scsjp printreg("\ner", bp->mt_erreg, mt->t_erbits); 283183102Scsjp (void)putchar('\n'); 284183102Scsjp#if defined (__FreeBSD__) 285183102Scsjp } 286183102Scsjp#endif /* defined (__FreeBSD__) */ 287183102Scsjp} 288183102Scsjp 289183102Scsjp/* 290183102Scsjp * Print a register a la the %b format of the kernel's printf. 291183102Scsjp */ 292183102Scsjpvoid 293183102Scsjpprintreg(s, v, bits) 294183102Scsjp char *s; 295183102Scsjp register u_int v; 296183102Scsjp register char *bits; 297183102Scsjp{ 298183102Scsjp register int i, any = 0; 299183102Scsjp register char c; 300183102Scsjp 301127664Sbms if (bits && *bits == 8) 30217683Spst printf("%s=%o", s, v); 30317683Spst else 30417683Spst printf("%s=%x", s, v); 30517683Spst if (!bits) 306146768Ssam return; 307127664Sbms bits++; 308183102Scsjp if (v && bits) { 309183102Scsjp putchar('<'); 310183102Scsjp while (i = *bits++) { 311146768Ssam if (v & (1 << (i-1))) { 312146768Ssam if (any) 313146768Ssam putchar(','); 31417683Spst any = 1; 315127664Sbms for (; (c = *bits) > 32; bits++) 31617683Spst putchar(c); 317127664Sbms } else 318127664Sbms for (; *bits > 32; bits++) 319127664Sbms ; 320127664Sbms } 321127664Sbms putchar('>'); 322127664Sbms } 323127664Sbms} 324127664Sbms 325127664Sbmsvoid 326127664Sbmsusage() 327127664Sbms{ 328127664Sbms (void)fprintf(stderr, "usage: mt [-f device] command [ count ]\n"); 32917683Spst exit(1); 33017683Spst} 331183102Scsjp 332183102Scsjp#if __STDC__ 333183102Scsjp#include <stdarg.h> 334183102Scsjp#else 335183102Scsjp#include <varargs.h> 336183102Scsjp#endif 337183102Scsjp 338183102Scsjpvoid 339183102Scsjp#if __STDC__ 340183102Scsjperr(const char *fmt, ...) 341183102Scsjp#else 342183102Scsjperr(fmt, va_alist) 343183102Scsjp char *fmt; 344183102Scsjp va_dcl 345183102Scsjp#endif 346183102Scsjp{ 347183102Scsjp va_list ap; 348183102Scsjp#if __STDC__ 349183102Scsjp va_start(ap, fmt); 350183102Scsjp#else 351183102Scsjp va_start(ap); 35217683Spst#endif 35317683Spst (void)fprintf(stderr, "mt: "); 35417683Spst (void)vfprintf(stderr, fmt, ap); 35517683Spst va_end(ap); 35617683Spst (void)fprintf(stderr, "\n"); 35717683Spst exit(1); 35817683Spst /* NOTREACHED */ 359127664Sbms} 360127664Sbms 361127664Sbms#if defined (__FreeBSD__) 362127664Sbms 363127664Sbmsstruct densities { 364127664Sbms int dens; 365127664Sbms const char *name; 366127664Sbms} dens [] = { 367127664Sbms { 0x1, "X3.22-1983" }, 368127664Sbms { 0x2, "X3.39-1986" }, 369127664Sbms { 0x3, "X3.54-1986" }, 370127664Sbms { 0x5, "X3.136-1986" }, 371127664Sbms { 0x6, "X3.157-1987" }, 372127664Sbms { 0x7, "X3.116-1986" }, 373127664Sbms { 0x8, "X3.158-1986" }, 374127664Sbms { 0x9, "X3B5/87-099" }, 375127664Sbms { 0xA, "X3B5/86-199" }, 376127664Sbms { 0xB, "X3.56-1986" }, 377127664Sbms { 0xC, "HI-TC1" }, 378127664Sbms { 0xD, "HI-TC2" }, 379127664Sbms { 0xF, "QIC-120" }, 380127664Sbms { 0x10, "QIC-150" }, 381127664Sbms { 0x11, "QIC-320" }, 382127664Sbms { 0x12, "QIC-1350" }, 383127664Sbms { 0x13, "X3B5/88-185A" }, 384127664Sbms { 0x14, "X3.202-1991" }, 38517683Spst { 0x15, "ECMA TC17" }, 38617683Spst { 0x16, "X3.193-1990" }, 38717683Spst { 0x17, "X3B5/91-174" }, 38817683Spst { 0, 0 } 38917683Spst}; 39017683Spst 39117683Spstconst char * 39217683Spstdenstostring(int d) 39317683Spst{ 39417683Spst static char buf[20]; 39517683Spst struct densities *sd; 39617683Spst 39717683Spst for (sd = dens; sd->dens; sd++) 39817683Spst if (sd->dens == d) 39917683Spst break; 40017683Spst if (sd->dens == 0) { 40117683Spst sprintf(buf, "0x%02x", d); 40275107Sfenner return buf; 40375107Sfenner } else 40417683Spst return sd->name; 40517683Spst} 40617683Spst 40717683Spstint 40817683Spststringtodens(const char *s) 40917683Spst{ 41017683Spst struct densities *sd; 41117683Spst size_t l = strlen(s); 41217683Spst 41317683Spst for (sd = dens; sd->dens; sd++) 41417683Spst if (strncasecmp(sd->name, s, l) == 0) 415146768Ssam break; 416146768Ssam return sd->dens; 417146768Ssam} 41817683Spst 41917683Spst 420127664Sbmsconst char * 421127664Sbmsgetblksiz(int bs) 422127664Sbms{ 423127664Sbms static char buf[25]; 424127664Sbms if (bs == 0) 425127664Sbms return "variable"; 426127664Sbms else { 427127664Sbms sprintf(buf, "= %d bytes", bs); 428127664Sbms return buf; 429127664Sbms } 430127664Sbms} 431127664Sbms 432127664Sbms 433127664Sbmsvoid 434127664Sbmsst_status(struct mtget *bp) 435127664Sbms{ 436127664Sbms printf("Present Mode: Density = %-12s Blocksize %s\n", 437127664Sbms denstostring(bp->mt_density), getblksiz(bp->mt_blksiz)); 438127664Sbms printf("---------available modes---------\n"); 439127664Sbms printf("Mode 0: Density = %-12s Blocksize %s\n", 440127664Sbms denstostring(bp->mt_density0), getblksiz(bp->mt_blksiz0)); 44117683Spst printf("Mode 1: Density = %-12s Blocksize %s\n", 44217683Spst denstostring(bp->mt_density1), getblksiz(bp->mt_blksiz1)); 443146768Ssam printf("Mode 2: Density = %-12s Blocksize %s\n", 44417683Spst denstostring(bp->mt_density2), getblksiz(bp->mt_blksiz2)); 445127664Sbms printf("Mode 3: Density = %-12s Blocksize %s\n", 446127664Sbms denstostring(bp->mt_density3), getblksiz(bp->mt_blksiz3)); 447146768Ssam} 448146768Ssam 449146768Ssamvoid 450146768Ssamwarn_eof(void) 451146768Ssam{ 452146768Ssam fprintf(stderr, 453146768Ssam "The \"eof\" command has been disabled.\n" 454146768Ssam "Use \"weof\" if you really want to write end-of-file marks,\n" 45517683Spst "or \"eom\" if you rather want to skip to the end of " 456127664Sbms "recorded medium.\n"); 457146768Ssam exit(1); 458146768Ssam} 459146768Ssam 460146768Ssam#endif /* defined (__FreeBSD__) */ 46198530Sfenner