newfs.c revision 37775
1/* 2 * Copyright (c) 1983, 1989, 1993, 1994 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) 1983, 1989, 1993, 1994\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[] = "@(#)newfs.c 8.13 (Berkeley) 5/1/95"; 43#endif 44static const char rcsid[] = 45 "$Id: newfs.c,v 1.21 1998/07/16 12:04:52 charnier Exp $"; 46#endif /* not lint */ 47 48/* 49 * newfs: friendly front end to mkfs 50 */ 51#include <sys/param.h> 52#include <sys/stat.h> 53#include <sys/disklabel.h> 54#include <sys/file.h> 55#include <sys/mount.h> 56 57#include <ufs/ufs/dir.h> 58#include <ufs/ufs/dinode.h> 59#include <ufs/ffs/fs.h> 60#include <ufs/ufs/ufsmount.h> 61 62#include <ctype.h> 63#include <err.h> 64#include <errno.h> 65#include <paths.h> 66#include <stdio.h> 67#include <stdlib.h> 68#include <string.h> 69#include <syslog.h> 70#include <unistd.h> 71 72#ifdef MFS 73#include <sys/types.h> 74#include <sys/mman.h> 75#endif 76 77#if __STDC__ 78#include <stdarg.h> 79#else 80#include <varargs.h> 81#endif 82 83#include "mntopts.h" 84 85struct mntopt mopts[] = { 86 MOPT_STDOPTS, 87 MOPT_ASYNC, 88 { NULL }, 89}; 90 91#if __STDC__ 92void fatal(const char *fmt, ...); 93#else 94void fatal(); 95#endif 96 97#define COMPAT /* allow non-labeled disks */ 98 99/* 100 * The following two constants set the default block and fragment sizes. 101 * Both constants must be a power of 2 and meet the following constraints: 102 * MINBSIZE <= DESBLKSIZE <= MAXBSIZE 103 * sectorsize <= DESFRAGSIZE <= DESBLKSIZE 104 * DESBLKSIZE / DESFRAGSIZE <= 8 105 */ 106#define DFL_FRAGSIZE 1024 107#define DFL_BLKSIZE 8192 108 109/* 110 * Cylinder groups may have up to many cylinders. The actual 111 * number used depends upon how much information can be stored 112 * on a single cylinder. The default is to use 16 cylinders 113 * per group. 114 */ 115#define DESCPG 16 /* desired fs_cpg */ 116 117/* 118 * Once upon a time... 119 * ROTDELAY gives the minimum number of milliseconds to initiate 120 * another disk transfer on the same cylinder. It is used in 121 * determining the rotationally optimal layout for disk blocks 122 * within a file; the default of fs_rotdelay is 4ms. 123 * 124 * ...but now we make this 0 to disable the rotdelay delay because 125 * modern drives with read/write-behind achieve higher performance 126 * without the delay. 127 */ 128#define ROTDELAY 0 129 130/* 131 * MAXBLKPG determines the maximum number of data blocks which are 132 * placed in a single cylinder group. The default is one indirect 133 * block worth of data blocks. 134 */ 135#define MAXBLKPG(bsize) ((bsize) / sizeof(daddr_t)) 136 137/* 138 * Each file system has a number of inodes statically allocated. 139 * We allocate one inode slot per NFPI fragments, expecting this 140 * to be far more than we will ever need. 141 */ 142#define NFPI 4 143 144/* 145 * Once upon a time... 146 * For each cylinder we keep track of the availability of blocks at different 147 * rotational positions, so that we can lay out the data to be picked 148 * up with minimum rotational latency. NRPOS is the default number of 149 * rotational positions that we distinguish. With NRPOS of 8 the resolution 150 * of our summary information is 2ms for a typical 3600 rpm drive. 151 * 152 * ...but now we make this 1 (which essentially disables the rotational 153 * position table because modern drives with read-ahead and write-behind do 154 * better without the rotational position table. 155 */ 156#define NRPOS 1 /* number distinct rotational positions */ 157 158/* 159 * About the same time as the above, we knew what went where on the disks. 160 * no longer so, so kill the code which finds the different platters too... 161 * We do this by saying one head, with a lot of sectors on it. 162 * The number of sectors are used to determine the size of a cyl-group. 163 * Kirk suggested one or two meg per "cylinder" so we say two. 164 */ 165 166#define NTRACKS 1 /* number of heads */ 167 168#define NSECTORS 4096 /* number of sectors */ 169 170int mfs; /* run as the memory based filesystem */ 171int Nflag; /* run without writing file system */ 172int Oflag; /* format as an 4.3BSD file system */ 173int fssize; /* file system size */ 174int ntracks = NTRACKS; /* # tracks/cylinder */ 175int nsectors = NSECTORS; /* # sectors/track */ 176int nphyssectors; /* # sectors/track including spares */ 177int secpercyl; /* sectors per cylinder */ 178int trackspares = -1; /* spare sectors per track */ 179int cylspares = -1; /* spare sectors per cylinder */ 180int sectorsize; /* bytes/sector */ 181int realsectorsize; /* bytes/sector in hardware */ 182int rpm; /* revolutions/minute of drive */ 183int interleave; /* hardware sector interleave */ 184int trackskew = -1; /* sector 0 skew, per track */ 185int headswitch; /* head switch time, usec */ 186int trackseek; /* track-to-track seek, usec */ 187int fsize = 0; /* fragment size */ 188int bsize = 0; /* block size */ 189int cpg = DESCPG; /* cylinders/cylinder group */ 190int cpgflg; /* cylinders/cylinder group flag was given */ 191int minfree = MINFREE; /* free space threshold */ 192int opt = DEFAULTOPT; /* optimization preference (space or time) */ 193int density; /* number of bytes per inode */ 194int maxcontig = 0; /* max contiguous blocks to allocate */ 195int rotdelay = ROTDELAY; /* rotational delay between blocks */ 196int maxbpg; /* maximum blocks per file in a cyl group */ 197int nrpos = NRPOS; /* # of distinguished rotational positions */ 198int bbsize = BBSIZE; /* boot block size */ 199int sbsize = SBSIZE; /* superblock size */ 200int mntflags = MNT_ASYNC; /* flags to be passed to mount */ 201int t_or_u_flag = 0; /* user has specified -t or -u */ 202u_long memleft; /* virtual memory available */ 203caddr_t membase; /* start address of memory based filesystem */ 204char *filename; 205#ifdef COMPAT 206char *disktype; 207int unlabeled; 208#endif 209 210char device[MAXPATHLEN]; 211char *progname; 212 213extern void mkfs __P((struct partition *, char *, int, int)); 214static void usage __P((void)); 215 216int 217main(argc, argv) 218 int argc; 219 char *argv[]; 220{ 221 register int ch; 222 register struct partition *pp; 223 register struct disklabel *lp; 224 struct disklabel mfsfakelabel; 225 struct disklabel *getdisklabel(); 226 struct partition oldpartition; 227 struct stat st; 228 struct statfs *mp; 229 int fsi, fso, len, n; 230 char *cp, *s1, *s2, *special, *opstring; 231#ifdef MFS 232 struct vfsconf vfc; 233 int error; 234 char buf[BUFSIZ]; 235#endif 236 237 if ((progname = strrchr(*argv, '/'))) 238 ++progname; 239 else 240 progname = *argv; 241 242 if (strstr(progname, "mfs")) { 243 mfs = 1; 244 Nflag++; 245 } 246 247 opstring = mfs ? 248 "NF:T:a:b:c:d:e:f:i:m:o:s:" : 249 "NOS:T:a:b:c:d:e:f:i:k:l:m:n:o:p:r:s:t:u:x:"; 250 while ((ch = getopt(argc, argv, opstring)) != -1) 251 switch (ch) { 252 case 'N': 253 Nflag = 1; 254 break; 255 case 'O': 256 Oflag = 1; 257 break; 258 case 'S': 259 if ((sectorsize = atoi(optarg)) <= 0) 260 fatal("%s: bad sector size", optarg); 261 break; 262#ifdef COMPAT 263 case 'T': 264 disktype = optarg; 265 break; 266#endif 267 case 'F': 268 filename = optarg; 269 break; 270 case 'a': 271 if ((maxcontig = atoi(optarg)) <= 0) 272 fatal("%s: bad maximum contiguous blocks", 273 optarg); 274 break; 275 case 'b': 276 if ((bsize = atoi(optarg)) < MINBSIZE) 277 fatal("%s: bad block size", optarg); 278 break; 279 case 'c': 280 if ((cpg = atoi(optarg)) <= 0) 281 fatal("%s: bad cylinders/group", optarg); 282 cpgflg++; 283 break; 284 case 'd': 285 if ((rotdelay = atoi(optarg)) < 0) 286 fatal("%s: bad rotational delay", optarg); 287 break; 288 case 'e': 289 if ((maxbpg = atoi(optarg)) <= 0) 290 fatal("%s: bad blocks per file in a cylinder group", 291 optarg); 292 break; 293 case 'f': 294 if ((fsize = atoi(optarg)) <= 0) 295 fatal("%s: bad fragment size", optarg); 296 break; 297 case 'i': 298 if ((density = atoi(optarg)) <= 0) 299 fatal("%s: bad bytes per inode", optarg); 300 break; 301 case 'k': 302 if ((trackskew = atoi(optarg)) < 0) 303 fatal("%s: bad track skew", optarg); 304 break; 305 case 'l': 306 if ((interleave = atoi(optarg)) <= 0) 307 fatal("%s: bad interleave", optarg); 308 break; 309 case 'm': 310 if ((minfree = atoi(optarg)) < 0 || minfree > 99) 311 fatal("%s: bad free space %%", optarg); 312 break; 313 case 'n': 314 if ((nrpos = atoi(optarg)) < 0) 315 fatal("%s: bad rotational layout count", 316 optarg); 317 if (nrpos == 0) 318 nrpos = 1; 319 break; 320 case 'o': 321 if (mfs) 322 getmntopts(optarg, mopts, &mntflags, 0); 323 else { 324 if (strcmp(optarg, "space") == 0) 325 opt = FS_OPTSPACE; 326 else if (strcmp(optarg, "time") == 0) 327 opt = FS_OPTTIME; 328 else 329 fatal("%s: unknown optimization preference: use `space' or `time'"); 330 } 331 break; 332 case 'p': 333 if ((trackspares = atoi(optarg)) < 0) 334 fatal("%s: bad spare sectors per track", 335 optarg); 336 break; 337 case 'r': 338 if ((rpm = atoi(optarg)) <= 0) 339 fatal("%s: bad revolutions/minute", optarg); 340 break; 341 case 's': 342 if ((fssize = atoi(optarg)) <= 0) 343 fatal("%s: bad file system size", optarg); 344 break; 345 case 't': 346 t_or_u_flag++; 347 if ((ntracks = atoi(optarg)) < 0) 348 fatal("%s: bad total tracks", optarg); 349 break; 350 case 'u': 351 t_or_u_flag++; 352 if ((nsectors = atoi(optarg)) < 0) 353 fatal("%s: bad sectors/track", optarg); 354 break; 355 case 'x': 356 if ((cylspares = atoi(optarg)) < 0) 357 fatal("%s: bad spare sectors per cylinder", 358 optarg); 359 break; 360 case '?': 361 default: 362 usage(); 363 } 364 argc -= optind; 365 argv += optind; 366 367 if (argc != 2 && (mfs || argc != 1)) 368 usage(); 369 370 special = argv[0]; 371 /* Copy the NetBSD way of faking up a disk label */ 372 if (mfs && !strcmp(special, "swap")) { 373 /* 374 * it's an MFS, mounted on "swap." fake up a label. 375 * XXX XXX XXX 376 */ 377 fso = -1; /* XXX; normally done below. */ 378 379 memset(&mfsfakelabel, 0, sizeof(mfsfakelabel)); 380 mfsfakelabel.d_secsize = 512; 381 mfsfakelabel.d_nsectors = 64; 382 mfsfakelabel.d_ntracks = 16; 383 mfsfakelabel.d_ncylinders = 16; 384 mfsfakelabel.d_secpercyl = 1024; 385 mfsfakelabel.d_secperunit = 16384; 386 mfsfakelabel.d_rpm = 3600; 387 mfsfakelabel.d_interleave = 1; 388 mfsfakelabel.d_npartitions = 1; 389 mfsfakelabel.d_partitions[0].p_size = 16384; 390 mfsfakelabel.d_partitions[0].p_fsize = 1024; 391 mfsfakelabel.d_partitions[0].p_frag = 8; 392 mfsfakelabel.d_partitions[0].p_cpg = 16; 393 394 lp = &mfsfakelabel; 395 pp = &mfsfakelabel.d_partitions[0]; 396 397 goto havelabel; 398 } 399 400 cp = strrchr(special, '/'); 401 if (cp == 0) { 402 /* 403 * No path prefix; try /dev/r%s then /dev/%s. 404 */ 405 (void)sprintf(device, "%sr%s", _PATH_DEV, special); 406 if (stat(device, &st) == -1) 407 (void)sprintf(device, "%s%s", _PATH_DEV, special); 408 special = device; 409 } 410 if (Nflag) { 411 fso = -1; 412 } else { 413 fso = open(special, O_WRONLY); 414 if (fso < 0) 415 fatal("%s: %s", special, strerror(errno)); 416 417 /* Bail if target special is mounted */ 418 n = getmntinfo(&mp, MNT_NOWAIT); 419 if (n == 0) 420 fatal("%s: getmntinfo: %s", special, strerror(errno)); 421 422 len = sizeof(_PATH_DEV) - 1; 423 s1 = special; 424 if (strncmp(_PATH_DEV, s1, len) == 0) 425 s1 += len; 426 427 while (--n >= 0) { 428 s2 = mp->f_mntfromname; 429 if (strncmp(_PATH_DEV, s2, len) == 0) { 430 s2 += len - 1; 431 *s2 = 'r'; 432 } 433 if (strcmp(s1, s2) == 0 || strcmp(s1, &s2[1]) == 0) 434 fatal("%s is mounted on %s", 435 special, mp->f_mntonname); 436 ++mp; 437 } 438 } 439 if (mfs && disktype != NULL) { 440 lp = (struct disklabel *)getdiskbyname(disktype); 441 if (lp == NULL) 442 fatal("%s: unknown disk type", disktype); 443 pp = &lp->d_partitions[1]; 444 } else { 445 fsi = open(special, O_RDONLY); 446 if (fsi < 0) 447 fatal("%s: %s", special, strerror(errno)); 448 if (fstat(fsi, &st) < 0) 449 fatal("%s: %s", special, strerror(errno)); 450 if ((st.st_mode & S_IFMT) != S_IFCHR && !mfs) 451 printf("%s: %s: not a character-special device\n", 452 progname, special); 453 cp = strchr(argv[0], '\0') - 1; 454 if (cp == (char *)-1 || 455 ((*cp < 'a' || *cp > 'h') && !isdigit(*cp))) 456 fatal("%s: can't figure out file system partition", 457 argv[0]); 458#ifdef COMPAT 459 if (!mfs && disktype == NULL) 460 disktype = argv[1]; 461#endif 462 lp = getdisklabel(special, fsi); 463 if (isdigit(*cp)) 464 pp = &lp->d_partitions[0]; 465 else 466 pp = &lp->d_partitions[*cp - 'a']; 467 if (pp->p_size == 0) 468 fatal("%s: `%c' partition is unavailable", 469 argv[0], *cp); 470 if (pp->p_fstype == FS_BOOT) 471 fatal("%s: `%c' partition overlaps boot program", 472 argv[0], *cp); 473 } 474havelabel: 475 if (fssize == 0) 476 fssize = pp->p_size; 477 if (fssize > pp->p_size && !mfs) 478 fatal("%s: maximum file system size on the `%c' partition is %d", 479 argv[0], *cp, pp->p_size); 480 if (rpm == 0) { 481 rpm = lp->d_rpm; 482 if (rpm <= 0) 483 rpm = 3600; 484 } 485 if (ntracks == 0) { 486 ntracks = lp->d_ntracks; 487 if (ntracks <= 0) 488 fatal("%s: no default #tracks", argv[0]); 489 } 490 if (nsectors == 0) { 491 nsectors = lp->d_nsectors; 492 if (nsectors <= 0) 493 fatal("%s: no default #sectors/track", argv[0]); 494 } 495 if (sectorsize == 0) { 496 sectorsize = lp->d_secsize; 497 if (sectorsize <= 0) 498 fatal("%s: no default sector size", argv[0]); 499 } 500 if (trackskew == -1) { 501 trackskew = lp->d_trackskew; 502 if (trackskew < 0) 503 trackskew = 0; 504 } 505 if (interleave == 0) { 506 interleave = lp->d_interleave; 507 if (interleave <= 0) 508 interleave = 1; 509 } 510 if (fsize == 0) { 511 fsize = pp->p_fsize; 512 if (fsize <= 0) 513 fsize = MAX(DFL_FRAGSIZE, lp->d_secsize); 514 } 515 if (bsize == 0) { 516 bsize = pp->p_frag * pp->p_fsize; 517 if (bsize <= 0) 518 bsize = MIN(DFL_BLKSIZE, 8 * fsize); 519 } 520 /* 521 * Maxcontig sets the default for the maximum number of blocks 522 * that may be allocated sequentially. With filesystem clustering 523 * it is possible to allocate contiguous blocks up to the maximum 524 * transfer size permitted by the controller or buffering. 525 */ 526 if (maxcontig == 0) 527 maxcontig = MAX(1, MAXPHYS / bsize - 1); 528 if (density == 0) 529 density = NFPI * fsize; 530 if (minfree < MINFREE && opt != FS_OPTSPACE) { 531 fprintf(stderr, "Warning: changing optimization to space "); 532 fprintf(stderr, "because minfree is less than %d%%\n", MINFREE); 533 opt = FS_OPTSPACE; 534 } 535 if (trackspares == -1) { 536 trackspares = lp->d_sparespertrack; 537 if (trackspares < 0) 538 trackspares = 0; 539 } 540 nphyssectors = nsectors + trackspares; 541 if (cylspares == -1) { 542 cylspares = lp->d_sparespercyl; 543 if (cylspares < 0) 544 cylspares = 0; 545 } 546 secpercyl = nsectors * ntracks - cylspares; 547 /* 548 * Only complain if -t or -u have been specified; the default 549 * case (4096 sectors per cylinder) is intended to disagree 550 * with the disklabel. 551 */ 552 if (t_or_u_flag && secpercyl != lp->d_secpercyl) 553 fprintf(stderr, "%s (%d) %s (%lu)\n", 554 "Warning: calculated sectors per cylinder", secpercyl, 555 "disagrees with disk label", (u_long)lp->d_secpercyl); 556 if (maxbpg == 0) 557 maxbpg = MAXBLKPG(bsize); 558 headswitch = lp->d_headswitch; 559 trackseek = lp->d_trkseek; 560#ifdef notdef /* label may be 0 if faked up by kernel */ 561 bbsize = lp->d_bbsize; 562 sbsize = lp->d_sbsize; 563#endif 564 oldpartition = *pp; 565#ifdef tahoe 566 realsectorsize = sectorsize; 567 if (sectorsize != DEV_BSIZE) { /* XXX */ 568 int secperblk = DEV_BSIZE / sectorsize; 569 570 sectorsize = DEV_BSIZE; 571 nsectors /= secperblk; 572 nphyssectors /= secperblk; 573 secpercyl /= secperblk; 574 fssize /= secperblk; 575 pp->p_size /= secperblk; 576 } 577#else 578 realsectorsize = sectorsize; 579 if (sectorsize != DEV_BSIZE) { /* XXX */ 580 int secperblk = sectorsize / DEV_BSIZE; 581 582 sectorsize = DEV_BSIZE; 583 nsectors *= secperblk; 584 nphyssectors *= secperblk; 585 secpercyl *= secperblk; 586 fssize *= secperblk; 587 pp->p_size *= secperblk; 588 } 589#endif 590 mkfs(pp, special, fsi, fso); 591#ifdef tahoe 592 if (realsectorsize != DEV_BSIZE) 593 pp->p_size *= DEV_BSIZE / realsectorsize; 594#else 595 if (realsectorsize != DEV_BSIZE) 596 pp->p_size /= realsectorsize /DEV_BSIZE; 597#endif 598 if (!Nflag && bcmp(pp, &oldpartition, sizeof(oldpartition))) 599 rewritelabel(special, fso, lp); 600 if (!Nflag) 601 close(fso); 602 close(fsi); 603#ifdef MFS 604 if (mfs) { 605 struct mfs_args args; 606 607 sprintf(buf, "mfs:%d", getpid()); 608 args.fspec = buf; 609 args.export.ex_root = -2; 610 if (mntflags & MNT_RDONLY) 611 args.export.ex_flags = MNT_EXRDONLY; 612 else 613 args.export.ex_flags = 0; 614 args.base = membase; 615 args.size = fssize * sectorsize; 616 617 error = getvfsbyname("mfs", &vfc); 618 if (error && vfsisloadable("mfs")) { 619 if (vfsload("mfs")) 620 fatal("vfsload(mfs)"); 621 endvfsent(); /* flush cache */ 622 error = getvfsbyname("mfs", &vfc); 623 } 624 if (error) 625 fatal("mfs filesystem not available"); 626 627 if (mount(vfc.vfc_name, argv[1], mntflags, &args) < 0) 628 fatal("%s: %s", argv[1], strerror(errno)); 629 if(filename) { 630 munmap(membase,fssize * sectorsize); 631 } 632 } 633#endif 634 exit(0); 635} 636 637#ifdef COMPAT 638char lmsg[] = "%s: can't read disk label; disk type must be specified"; 639#else 640char lmsg[] = "%s: can't read disk label"; 641#endif 642 643struct disklabel * 644getdisklabel(s, fd) 645 char *s; 646 int fd; 647{ 648 static struct disklabel lab; 649 650 if (ioctl(fd, DIOCGDINFO, (char *)&lab) < 0) { 651#ifdef COMPAT 652 if (disktype) { 653 struct disklabel *lp, *getdiskbyname(); 654 655 unlabeled++; 656 lp = getdiskbyname(disktype); 657 if (lp == NULL) 658 fatal("%s: unknown disk type", disktype); 659 return (lp); 660 } 661#endif 662 warn("ioctl (GDINFO)"); 663 fatal(lmsg, s); 664 } 665 return (&lab); 666} 667 668rewritelabel(s, fd, lp) 669 char *s; 670 int fd; 671 register struct disklabel *lp; 672{ 673#ifdef COMPAT 674 if (unlabeled) 675 return; 676#endif 677 lp->d_checksum = 0; 678 lp->d_checksum = dkcksum(lp); 679 if (ioctl(fd, DIOCWDINFO, (char *)lp) < 0) { 680 warn("ioctl (WDINFO)"); 681 fatal("%s: can't rewrite disk label", s); 682 } 683} 684 685/*VARARGS*/ 686void 687#if __STDC__ 688fatal(const char *fmt, ...) 689#else 690fatal(fmt, va_alist) 691 char *fmt; 692 va_dcl 693#endif 694{ 695 va_list ap; 696 697#if __STDC__ 698 va_start(ap, fmt); 699#else 700 va_start(ap); 701#endif 702 if (fcntl(STDERR_FILENO, F_GETFL) < 0) { 703 openlog(progname, LOG_CONS, LOG_DAEMON); 704 vsyslog(LOG_ERR, fmt, ap); 705 closelog(); 706 } else { 707 vwarnx(fmt, ap); 708 } 709 va_end(ap); 710 exit(1); 711 /*NOTREACHED*/ 712} 713 714static void 715usage() 716{ 717 if (mfs) { 718 fprintf(stderr, 719 "usage: %s [ -fsoptions ] special-device mount-point\n", 720 progname); 721 } else 722 fprintf(stderr, 723 "usage: %s [ -fsoptions ] special-device%s\n", 724 progname, 725#ifdef COMPAT 726 " [device-type]"); 727#else 728 ""); 729#endif 730 fprintf(stderr, "where fsoptions are:\n"); 731 fprintf(stderr, 732 "\t-N do not create file system, just print out parameters\n"); 733 fprintf(stderr, "\t-O create a 4.3BSD format filesystem\n"); 734 fprintf(stderr, "\t-S sector size\n"); 735#ifdef COMPAT 736 fprintf(stderr, "\t-T disktype\n"); 737#endif 738 fprintf(stderr, "\t-a maximum contiguous blocks\n"); 739 fprintf(stderr, "\t-b block size\n"); 740 fprintf(stderr, "\t-c cylinders/group\n"); 741 fprintf(stderr, "\t-d rotational delay between contiguous blocks\n"); 742 fprintf(stderr, "\t-e maximum blocks per file in a cylinder group\n"); 743 fprintf(stderr, "\t-f frag size\n"); 744 fprintf(stderr, "\t-i number of bytes per inode\n"); 745 fprintf(stderr, "\t-k sector 0 skew, per track\n"); 746 fprintf(stderr, "\t-l hardware sector interleave\n"); 747 fprintf(stderr, "\t-m minimum free space %%\n"); 748 fprintf(stderr, "\t-n number of distinguished rotational positions\n"); 749 fprintf(stderr, "\t-o optimization preference (`space' or `time')\n"); 750 fprintf(stderr, "\t-p spare sectors per track\n"); 751 fprintf(stderr, "\t-s file system size (sectors)\n"); 752 fprintf(stderr, "\t-r revolutions/minute\n"); 753 fprintf(stderr, "\t-t tracks/cylinder\n"); 754 fprintf(stderr, "\t-u sectors/track\n"); 755 fprintf(stderr, "\t-x spare sectors per cylinder\n"); 756 exit(1); 757} 758