1 /* $NetBSD: bad144.c,v 1.11 1997/06/24 07:48:12 mikel Exp $ */ 2 3 /* 4 * Copyright (c) 1980, 1986, 1988, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 35 36 #ifndef lint 37 static char copyright[] = 38 "@(#) Copyright (c) 1980, 1986, 1988, 1993\n\ 39 The Regents of the University of California. All rights reserved.\n"; 40 #endif /* not lint */ 41 42 #ifndef lint 43 #if 0 44 static char sccsid[] = "@(#)bad144.c 8.2 (Berkeley) 4/27/95"; 45 #else 46 static char rcsid[] = "$NetBSD: bad144.c,v 1.11 1997/06/24 07:48:12 mikel Exp $"; 47 #endif 48 #endif /* not lint */ 49 50 /* 51 * bad144 52 * 53 * This program prints and/or initializes a bad block record for a pack, 54 * in the format used by the DEC standard 144. 55 * It can also add bad sector(s) to the record, moving the sector 56 * replacements as necessary. 57 * 58 * It is preferable to write the bad information with a standard formatter, 59 * but this program will do. 60 * 61 * RP06 sectors are marked as bad by inverting the format bit in the 62 * header; on other drives the valid-sector bit is cleared. 63 */ 64 #include <sys/param.h> 65 #include <sys/dkbad.h> 66 #include <sys/ioctl.h> 67 #include <sys/file.h> 68 #include <sys/disklabel.h> 69 #include <ufs/ffs/fs.h> 70 71 #include <stdio.h> 72 #include <stdlib.h> 73 #include <string.h> 74 #include <paths.h> 75 #include <unistd.h> 76 77 #define RETRIES 10 /* number of retries on reading old sectors */ 78 #ifdef i386 /* XXX */ 79 #define RAWPART "d" /* disk partition containing badsector tables */ 80 #else 81 #define RAWPART "c" /* disk partition containing badsector tables */ 82 #endif 83 84 int fflag, add, copy, verbose, nflag; 85 int dups; 86 int badfile = -1; /* copy of badsector table to use, -1 if any */ 87 #define MAXSECSIZE 1024 88 struct dkbad curbad, oldbad; 89 #define DKBAD_MAGIC 0x4321 90 91 char label[BBSIZE]; 92 daddr_t size; 93 struct disklabel *dp; 94 char name[BUFSIZ]; 95 96 void Perror __P((const char *)); 97 daddr_t badsn __P((const struct bt_bad *)); 98 int blkcopy __P((int, daddr_t, daddr_t)); 99 void blkzero __P((int, daddr_t)); 100 int checkold __P((void)); 101 int compare __P((const void *, const void *)); 102 daddr_t getold __P((int, struct dkbad *)); 103 void shift __P((int, int, int)); 104 105 int 106 main(argc, argv) 107 int argc; 108 char *argv[]; 109 { 110 struct bt_bad *bt; 111 daddr_t sn, bn[126]; 112 int i, f, nbad, new, bad, errs; 113 114 argc--, argv++; 115 while (argc > 0 && **argv == '-') { 116 (*argv)++; 117 while (**argv) { 118 switch (**argv) { 119 #if vax 120 case 'f': 121 fflag++; 122 break; 123 #endif 124 case 'a': 125 add++; 126 break; 127 case 'c': 128 copy++; 129 break; 130 case 'v': 131 verbose++; 132 break; 133 case 'n': 134 nflag++; 135 verbose++; 136 break; 137 default: 138 if (**argv >= '0' && **argv <= '4') { 139 badfile = **argv - '0'; 140 break; 141 } 142 goto usage; 143 } 144 (*argv)++; 145 } 146 argc--, argv++; 147 } 148 if (argc < 1) { 149 usage: 150 fprintf(stderr, 151 "usage: bad144 [ -f ] disk [ snum [ bn ... ] ]\n"); 152 fprintf(stderr, 153 "to read or overwrite bad-sector table, e.g.: bad144 hp0\n"); 154 fprintf(stderr, 155 "or bad144 -a [ -f ] [ -c ] disk bn ...\n"); 156 fprintf(stderr, "where options are:\n"); 157 fprintf(stderr, "\t-a add new bad sectors to the table\n"); 158 fprintf(stderr, "\t-f reformat listed sectors as bad\n"); 159 fprintf(stderr, "\t-c copy original sector to replacement\n"); 160 exit(1); 161 } 162 if (argv[0][0] != '/') 163 (void)sprintf(name, "%sr%s%s", _PATH_DEV, argv[0], RAWPART); 164 else 165 strcpy(name, argv[0]); 166 f = open(name, argc == 1? O_RDONLY : O_RDWR); 167 if (f < 0) 168 Perror(name); 169 #ifdef was 170 if (read(f, label, sizeof(label)) < 0) 171 Perror("read"); 172 for (dp = (struct disklabel *)(label + LABELOFFSET); 173 dp < (struct disklabel *) 174 (label + sizeof(label) - sizeof(struct disklabel)); 175 dp = (struct disklabel *)((char *)dp + 64)) 176 if (dp->d_magic == DISKMAGIC && dp->d_magic2 == DISKMAGIC) 177 break; 178 #else 179 /* obtain label and adjust to fit */ 180 dp = (struct disklabel *)&label; 181 if (ioctl(f, DIOCGDINFO, dp) < 0) 182 Perror("ioctl DIOCGDINFO"); 183 #endif 184 if (dp->d_magic != DISKMAGIC || dp->d_magic2 != DISKMAGIC 185 /* dkcksum(lp) != 0 */ ) { 186 fprintf(stderr, "Bad pack magic number (pack is unlabeled)\n"); 187 exit(1); 188 } 189 if (dp->d_secsize > MAXSECSIZE || dp->d_secsize <= 0) { 190 fprintf(stderr, "Disk sector size too large/small (%d)\n", 191 dp->d_secsize); 192 exit(7); 193 } 194 #ifdef i386 195 if (dp->d_type == DTYPE_SCSI) { 196 fprintf(stderr, "SCSI disks don't use bad144!\n"); 197 exit(1); 198 } 199 /* are we inside a DOS partition? */ 200 if (dp->d_partitions[0].p_offset) { 201 /* yes, rules change. assume bad tables at end of partition C, 202 which maps all of DOS partition we are within -wfj */ 203 size = dp->d_partitions[2].p_offset + dp->d_partitions[2].p_size; 204 } else 205 #endif 206 size = dp->d_nsectors * dp->d_ntracks * dp->d_ncylinders; 207 argc--; 208 argv++; 209 if (argc == 0) { 210 sn = getold(f, &oldbad); 211 printf("bad block information at sector %d in %s:\n", 212 sn, name); 213 printf("cartridge serial number: %d(10)\n", oldbad.bt_csn); 214 switch (oldbad.bt_flag) { 215 216 case (u_short)-1: 217 printf("alignment cartridge\n"); 218 break; 219 220 case DKBAD_MAGIC: 221 break; 222 223 default: 224 printf("bt_flag=%x(16)?\n", oldbad.bt_flag); 225 break; 226 } 227 bt = oldbad.bt_bad; 228 for (i = 0; i < 126; i++) { 229 bad = (bt->bt_cyl<<16) + bt->bt_trksec; 230 if (bad < 0) 231 break; 232 printf("sn=%d, cn=%d, tn=%d, sn=%d\n", badsn(bt), 233 bt->bt_cyl, bt->bt_trksec>>8, bt->bt_trksec&0xff); 234 bt++; 235 } 236 (void) checkold(); 237 exit(0); 238 } 239 if (add) { 240 /* 241 * Read in the old badsector table. 242 * Verify that it makes sense, and the bad sectors 243 * are in order. Copy the old table to the new one. 244 */ 245 (void) getold(f, &oldbad); 246 i = checkold(); 247 if (verbose) 248 printf("Had %d bad sectors, adding %d\n", i, argc); 249 if (i + argc > 126) { 250 printf("bad144: not enough room for %d more sectors\n", 251 argc); 252 printf("limited to 126 by information format\n"); 253 exit(1); 254 } 255 curbad = oldbad; 256 } else { 257 curbad.bt_csn = atoi(*argv++); 258 argc--; 259 curbad.bt_mbz = 0; 260 curbad.bt_flag = DKBAD_MAGIC; 261 if (argc > 126) { 262 printf("bad144: too many bad sectors specified\n"); 263 printf("limited to 126 by information format\n"); 264 exit(1); 265 } 266 i = 0; 267 } 268 errs = 0; 269 new = argc; 270 while (argc > 0) { 271 daddr_t sn = atoi(*argv++); 272 argc--; 273 if (sn < 0 || sn >= size) { 274 printf("%d: out of range [0,%d) for disk %s\n", 275 sn, size, dp->d_typename); 276 errs++; 277 continue; 278 } 279 bn[i] = sn; 280 curbad.bt_bad[i].bt_cyl = sn / (dp->d_nsectors*dp->d_ntracks); 281 sn %= (dp->d_nsectors*dp->d_ntracks); 282 curbad.bt_bad[i].bt_trksec = 283 ((sn/dp->d_nsectors) << 8) + (sn%dp->d_nsectors); 284 i++; 285 } 286 if (errs) 287 exit(1); 288 nbad = i; 289 while (i < 126) { 290 curbad.bt_bad[i].bt_trksec = -1; 291 curbad.bt_bad[i].bt_cyl = -1; 292 i++; 293 } 294 if (add) { 295 /* 296 * Sort the new bad sectors into the list. 297 * Then shuffle the replacement sectors so that 298 * the previous bad sectors get the same replacement data. 299 */ 300 qsort((char *)curbad.bt_bad, nbad, sizeof (struct bt_bad), 301 compare); 302 if (dups) { 303 fprintf(stderr, 304 "bad144: bad sectors have been duplicated; can't add existing sectors\n"); 305 exit(3); 306 } 307 shift(f, nbad, nbad-new); 308 } 309 if (badfile == -1) 310 i = 0; 311 else 312 i = badfile * 2; 313 for (; i < 10 && i < dp->d_nsectors; i += 2) { 314 if (lseek(f, 315 (off_t)dp->d_secsize * (size - dp->d_nsectors + i), 316 L_SET) < 0) 317 Perror("lseek"); 318 if (verbose) 319 printf("write badsect file at %d\n", 320 size - dp->d_nsectors + i); 321 if (nflag == 0 && write(f, (caddr_t)&curbad, sizeof(curbad)) != 322 sizeof(curbad)) { 323 char msg[80]; 324 (void)sprintf(msg, "bad144: write bad sector file %d", 325 i/2); 326 perror(msg); 327 } 328 if (badfile != -1) 329 break; 330 } 331 #ifdef vax 332 if (nflag == 0 && fflag) 333 for (i = nbad - new; i < nbad; i++) 334 format(f, bn[i]); 335 #endif 336 #ifdef DIOCSBAD 337 if (nflag == 0 && ioctl(f, DIOCSBAD, (caddr_t)&curbad) < 0) 338 fprintf(stderr, 339 "Can't sync bad-sector file; reboot for changes to take effect\n"); 340 #endif 341 if ((dp->d_flags & D_BADSECT) == 0 && nflag == 0) { 342 dp->d_flags |= D_BADSECT; 343 if (ioctl(f, DIOCWDINFO, dp) < 0) { 344 perror("label"); 345 fprintf(stderr, "Can't write label to enable bad sector handling\n"); 346 exit(1); 347 } 348 } 349 exit(0); 350 } 351 352 daddr_t 353 getold(f, bad) 354 int f; 355 struct dkbad *bad; 356 { 357 int i; 358 daddr_t sn; 359 char msg[80]; 360 361 if (badfile == -1) 362 i = 0; 363 else 364 i = badfile * 2; 365 for (; i < 10 && i < dp->d_nsectors; i += 2) { 366 sn = size - dp->d_nsectors + i; 367 if (lseek(f, (off_t)sn * dp->d_secsize, L_SET) < 0) 368 Perror("lseek"); 369 if (read(f, (char *) bad, dp->d_secsize) == dp->d_secsize) { 370 if (i > 0) 371 printf("Using bad-sector file %d\n", i/2); 372 return(sn); 373 } 374 (void)sprintf(msg, "bad144: read bad sector file at sn %d", sn); 375 perror(msg); 376 if (badfile != -1) 377 break; 378 } 379 fprintf(stderr, "bad144: %s: can't read bad block info\n", name); 380 exit(1); 381 /*NOTREACHED*/ 382 } 383 384 int 385 checkold() 386 { 387 register int i; 388 register struct bt_bad *bt; 389 daddr_t sn, lsn; 390 int errors = 0, warned = 0; 391 392 if (oldbad.bt_flag != DKBAD_MAGIC) { 393 fprintf(stderr, "bad144: %s: bad flag in bad-sector table\n", 394 name); 395 errors++; 396 } 397 if (oldbad.bt_mbz != 0) { 398 fprintf(stderr, "bad144: %s: bad magic number\n", name); 399 errors++; 400 } 401 bt = oldbad.bt_bad; 402 for (i = 0; i < 126; i++, bt++) { 403 if (bt->bt_cyl == 0xffff && bt->bt_trksec == 0xffff) 404 break; 405 if ((bt->bt_cyl >= dp->d_ncylinders) || 406 ((bt->bt_trksec >> 8) >= dp->d_ntracks) || 407 ((bt->bt_trksec & 0xff) >= dp->d_nsectors)) { 408 fprintf(stderr, 409 "bad144: cyl/trk/sect out of range in existing entry: "); 410 fprintf(stderr, "sn=%d, cn=%d, tn=%d, sn=%d\n", 411 badsn(bt), bt->bt_cyl, bt->bt_trksec>>8, 412 bt->bt_trksec & 0xff); 413 errors++; 414 } 415 sn = (bt->bt_cyl * dp->d_ntracks + 416 (bt->bt_trksec >> 8)) * 417 dp->d_nsectors + (bt->bt_trksec & 0xff); 418 if (i > 0 && sn < lsn && !warned) { 419 fprintf(stderr, 420 "bad144: bad sector file is out of order\n"); 421 errors++; 422 warned++; 423 } 424 if (i > 0 && sn == lsn) { 425 fprintf(stderr, 426 "bad144: bad sector file contains duplicates (sn %d)\n", 427 sn); 428 errors++; 429 } 430 lsn = sn; 431 } 432 if (errors) 433 exit(1); 434 return (i); 435 } 436 437 /* 438 * Move the bad sector replacements 439 * to make room for the new bad sectors. 440 * new is the new number of bad sectors, old is the previous count. 441 */ 442 void 443 shift(f, new, old) 444 int f, new, old; 445 { 446 daddr_t repl; 447 448 /* 449 * First replacement is last sector of second-to-last track. 450 */ 451 repl = size - dp->d_nsectors - 1; 452 new--; old--; 453 while (new >= 0 && new != old) { 454 if (old < 0 || 455 compare(&curbad.bt_bad[new], &oldbad.bt_bad[old]) > 0) { 456 /* 457 * Insert new replacement here-- copy original 458 * sector if requested and possible, 459 * otherwise write a zero block. 460 */ 461 if (!copy || 462 !blkcopy(f, badsn(&curbad.bt_bad[new]), repl - new)) 463 blkzero(f, repl - new); 464 } else { 465 if (blkcopy(f, repl - old, repl - new) == 0) 466 fprintf(stderr, 467 "Can't copy replacement sector %d to %d\n", 468 repl-old, repl-new); 469 old--; 470 } 471 new--; 472 } 473 } 474 475 char *buf; 476 477 /* 478 * Copy disk sector s1 to s2. 479 */ 480 int 481 blkcopy(f, s1, s2) 482 int f; 483 daddr_t s1, s2; 484 { 485 register tries, n; 486 487 if (buf == (char *)NULL) { 488 buf = malloc((unsigned)dp->d_secsize); 489 if (buf == (char *)NULL) { 490 fprintf(stderr, "Out of memory\n"); 491 exit(20); 492 } 493 } 494 for (tries = 0; tries < RETRIES; tries++) { 495 if (lseek(f, (off_t)dp->d_secsize * s1, L_SET) < 0) 496 Perror("lseek"); 497 if ((n = read(f, buf, dp->d_secsize)) == dp->d_secsize) 498 break; 499 } 500 if (n != dp->d_secsize) { 501 fprintf(stderr, "bad144: can't read sector, %d: ", s1); 502 if (n < 0) 503 perror((char *)0); 504 return(0); 505 } 506 if (lseek(f, (off_t)dp->d_secsize * s2, L_SET) < 0) 507 Perror("lseek"); 508 if (verbose) 509 printf("copying %d to %d\n", s1, s2); 510 if (nflag == 0 && write(f, buf, dp->d_secsize) != dp->d_secsize) { 511 fprintf(stderr, 512 "bad144: can't write replacement sector, %d: ", s2); 513 perror((char *)0); 514 return(0); 515 } 516 return(1); 517 } 518 519 char *zbuf; 520 521 void 522 blkzero(f, sn) 523 int f; 524 daddr_t sn; 525 { 526 527 if (zbuf == (char *)NULL) { 528 zbuf = malloc((unsigned)dp->d_secsize); 529 if (zbuf == (char *)NULL) { 530 fprintf(stderr, "Out of memory\n"); 531 exit(20); 532 } 533 } 534 if (lseek(f, (off_t)dp->d_secsize * sn, L_SET) < 0) 535 Perror("lseek"); 536 if (verbose) 537 printf("zeroing %d\n", sn); 538 if (nflag == 0 && write(f, zbuf, dp->d_secsize) != dp->d_secsize) { 539 fprintf(stderr, 540 "bad144: can't write replacement sector, %d: ", sn); 541 perror((char *)0); 542 } 543 } 544 545 int 546 compare(v1, v2) 547 const void *v1, *v2; 548 { 549 const struct bt_bad *b1 = v1; 550 const struct bt_bad *b2 = v2; 551 552 if (b1->bt_cyl > b2->bt_cyl) 553 return(1); 554 if (b1->bt_cyl < b2->bt_cyl) 555 return(-1); 556 if (b1->bt_trksec == b2->bt_trksec) 557 dups++; 558 return (b1->bt_trksec - b2->bt_trksec); 559 } 560 561 daddr_t 562 badsn(bt) 563 const struct bt_bad *bt; 564 { 565 566 return ((bt->bt_cyl * dp->d_ntracks 567 + (bt->bt_trksec >> 8)) * dp->d_nsectors 568 + (bt->bt_trksec & 0xff)); 569 } 570 571 #ifdef vax 572 573 struct rp06hdr { 574 short h_cyl; 575 short h_trksec; 576 short h_key1; 577 short h_key2; 578 char h_data[512]; 579 #define RP06_FMT 010000 /* 1 == 16 bit, 0 == 18 bit */ 580 }; 581 582 /* 583 * Most massbus and unibus drives 584 * have headers of this form 585 */ 586 struct hpuphdr { 587 u_short hpup_cyl; 588 u_char hpup_sect; 589 u_char hpup_track; 590 char hpup_data[512]; 591 #define HPUP_OKSECT 0xc000 /* this normally means sector is good */ 592 #define HPUP_16BIT 0x1000 /* 1 == 16 bit format */ 593 }; 594 int rp06format(), hpupformat(); 595 596 struct formats { 597 char *f_name; /* disk name */ 598 int f_bufsize; /* size of sector + header */ 599 int f_bic; /* value to bic in hpup_cyl */ 600 int (*f_routine)(); /* routine for special handling */ 601 } formats[] = { 602 { "rp06", sizeof (struct rp06hdr), RP06_FMT, rp06format }, 603 { "eagle", sizeof (struct hpuphdr), HPUP_OKSECT, hpupformat }, 604 { "capricorn", sizeof (struct hpuphdr), HPUP_OKSECT, hpupformat }, 605 { "rm03", sizeof (struct hpuphdr), HPUP_OKSECT, hpupformat }, 606 { "rm05", sizeof (struct hpuphdr), HPUP_OKSECT, hpupformat }, 607 { "9300", sizeof (struct hpuphdr), HPUP_OKSECT, hpupformat }, 608 { "9766", sizeof (struct hpuphdr), HPUP_OKSECT, hpupformat }, 609 { 0, 0, 0, 0 } 610 }; 611 612 /*ARGSUSED*/ 613 int 614 hpupformat(fp, dp, blk, buf, count) 615 struct formats *fp; 616 struct disklabel *dp; 617 daddr_t blk; 618 char *buf; 619 int count; 620 { 621 struct hpuphdr *hdr = (struct hpuphdr *)buf; 622 int sect; 623 624 if (count < sizeof(struct hpuphdr)) { 625 hdr->hpup_cyl = (HPUP_OKSECT | HPUP_16BIT) | 626 (blk / (dp->d_nsectors * dp->d_ntracks)); 627 sect = blk % (dp->d_nsectors * dp->d_ntracks); 628 hdr->hpup_track = (u_char)(sect / dp->d_nsectors); 629 hdr->hpup_sect = (u_char)(sect % dp->d_nsectors); 630 } 631 return (0); 632 } 633 634 /*ARGSUSED*/ 635 int 636 rp06format(fp, dp, blk, buf, count) 637 struct formats *fp; 638 struct disklabel *dp; 639 daddr_t blk; 640 char *buf; 641 int count; 642 { 643 644 if (count < sizeof(struct rp06hdr)) { 645 fprintf(stderr, "Can't read header on blk %d, can't reformat\n", 646 blk); 647 return (-1); 648 } 649 return (0); 650 } 651 652 void 653 format(fd, blk) 654 int fd; 655 daddr_t blk; 656 { 657 register struct formats *fp; 658 static char *buf; 659 static char bufsize; 660 struct format_op fop; 661 int n; 662 663 for (fp = formats; fp->f_name; fp++) 664 if (strcmp(dp->d_typename, fp->f_name) == 0) 665 break; 666 if (fp->f_name == 0) { 667 fprintf(stderr, "bad144: don't know how to format %s disks\n", 668 dp->d_typename); 669 exit(2); 670 } 671 if (buf && bufsize < fp->f_bufsize) { 672 free(buf); 673 buf = NULL; 674 } 675 if (buf == NULL) 676 buf = malloc((unsigned)fp->f_bufsize); 677 if (buf == NULL) { 678 fprintf(stderr, "bad144: can't allocate sector buffer\n"); 679 exit(3); 680 } 681 bufsize = fp->f_bufsize; 682 /* 683 * Here we do the actual formatting. All we really 684 * do is rewrite the sector header and flag the bad sector 685 * according to the format table description. If a special 686 * purpose format routine is specified, we allow it to 687 * process the sector as well. 688 */ 689 if (verbose) 690 printf("format blk %d\n", blk); 691 bzero((char *)&fop, sizeof(fop)); 692 fop.df_buf = buf; 693 fop.df_count = fp->f_bufsize; 694 fop.df_startblk = blk; 695 bzero(buf, fp->f_bufsize); 696 if (ioctl(fd, DIOCRFORMAT, &fop) < 0) 697 perror("bad144: read format"); 698 if (fp->f_routine && 699 (*fp->f_routine)(fp, dp, blk, buf, fop.df_count) != 0) 700 return; 701 if (fp->f_bic) { 702 struct hpuphdr *xp = (struct hpuphdr *)buf; 703 704 xp->hpup_cyl &= ~fp->f_bic; 705 } 706 if (nflag) 707 return; 708 bzero((char *)&fop, sizeof(fop)); 709 fop.df_buf = buf; 710 fop.df_count = fp->f_bufsize; 711 fop.df_startblk = blk; 712 if (ioctl(fd, DIOCWFORMAT, &fop) < 0) 713 Perror("write format"); 714 if (fop.df_count != fp->f_bufsize) { 715 char msg[80]; 716 (void)sprintf(msg, "bad144: write format %d", blk); 717 perror(msg); 718 } 719 } 720 #endif 721 722 void 723 Perror(op) 724 const char *op; 725 { 726 727 (void)fprintf(stderr, "bad144: "); perror(op); 728 exit(4); 729 } 730