newfs.c revision 1.19
1 /* $NetBSD: newfs.c,v 1.19 1995/06/28 02:21:02 thorpej Exp $ */ 2 3 /* 4 * Copyright (c) 1983, 1989, 1993, 1994 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) 1983, 1989, 1993, 1994\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[] = "@(#)newfs.c 8.8 (Berkeley) 4/18/94"; 45 #else 46 static char rcsid[] = "$NetBSD: newfs.c,v 1.19 1995/06/28 02:21:02 thorpej Exp $"; 47 #endif 48 #endif /* not lint */ 49 50 /* 51 * newfs: friendly front end to mkfs 52 */ 53 #include <sys/param.h> 54 #include <sys/stat.h> 55 #include <sys/ioctl.h> 56 #include <sys/disklabel.h> 57 #include <sys/file.h> 58 #include <sys/mount.h> 59 #include <sys/sysctl.h> 60 61 #include <ufs/ufs/dir.h> 62 #include <ufs/ffs/fs.h> 63 64 #include <ctype.h> 65 #include <errno.h> 66 #include <paths.h> 67 #include <stdio.h> 68 #include <stdlib.h> 69 #include <string.h> 70 #include <syslog.h> 71 #include <unistd.h> 72 73 #if __STDC__ 74 #include <stdarg.h> 75 #else 76 #include <varargs.h> 77 #endif 78 79 #include "mntopts.h" 80 81 struct mntopt mopts[] = { 82 MOPT_STDOPTS, 83 MOPT_ASYNC, 84 { NULL }, 85 }; 86 87 #if __STDC__ 88 void fatal(const char *fmt, ...); 89 #else 90 void fatal(); 91 #endif 92 93 int getmaxpartitions __P((void)); 94 95 #define COMPAT /* allow non-labeled disks */ 96 97 /* 98 * The following two constants set the default block and fragment sizes. 99 * Both constants must be a power of 2 and meet the following constraints: 100 * MINBSIZE <= DESBLKSIZE <= MAXBSIZE 101 * sectorsize <= DESFRAGSIZE <= DESBLKSIZE 102 * DESBLKSIZE / DESFRAGSIZE <= 8 103 */ 104 #define DFL_FRAGSIZE 1024 105 #define DFL_BLKSIZE 8192 106 107 /* 108 * Cylinder groups may have up to many cylinders. The actual 109 * number used depends upon how much information can be stored 110 * on a single cylinder. The default is to use 16 cylinders 111 * per group. 112 */ 113 #define DESCPG 16 /* desired fs_cpg */ 114 115 /* 116 * ROTDELAY gives the minimum number of milliseconds to initiate 117 * another disk transfer on the same cylinder. It is used in 118 * determining the rotationally optimal layout for disk blocks 119 * within a file; the default of fs_rotdelay is 0ms. 120 */ 121 #define ROTDELAY 0 122 123 /* 124 * MAXBLKPG determines the maximum number of data blocks which are 125 * placed in a single cylinder group. The default is one indirect 126 * block worth of data blocks. 127 */ 128 #define MAXBLKPG(bsize) ((bsize) / sizeof(daddr_t)) 129 130 /* 131 * Each file system has a number of inodes statically allocated. 132 * We allocate one inode slot per NFPI fragments, expecting this 133 * to be far more than we will ever need. 134 */ 135 #define NFPI 4 136 137 /* 138 * For each cylinder we keep track of the availability of blocks at different 139 * rotational positions, so that we can lay out the data to be picked 140 * up with minimum rotational latency. NRPOS is the default number of 141 * rotational positions that we distinguish. With NRPOS of 8 the resolution 142 * of our summary information is 2ms for a typical 3600 rpm drive. Caching 143 * and zoning pretty much defeats rotational optimization, so we now use a 144 * default of 1. 145 */ 146 #define NRPOS 1 /* number distinct rotational positions */ 147 148 149 int mfs; /* run as the memory based filesystem */ 150 int Nflag; /* run without writing file system */ 151 int Oflag; /* format as an 4.3BSD file system */ 152 int fssize; /* file system size */ 153 int ntracks; /* # tracks/cylinder */ 154 int nsectors; /* # sectors/track */ 155 int nphyssectors; /* # sectors/track including spares */ 156 int secpercyl; /* sectors per cylinder */ 157 int trackspares = -1; /* spare sectors per track */ 158 int cylspares = -1; /* spare sectors per cylinder */ 159 int sectorsize; /* bytes/sector */ 160 #ifdef tahoe 161 int realsectorsize; /* bytes/sector in hardware */ 162 #endif 163 int rpm; /* revolutions/minute of drive */ 164 int interleave; /* hardware sector interleave */ 165 int trackskew = -1; /* sector 0 skew, per track */ 166 int headswitch; /* head switch time, usec */ 167 int trackseek; /* track-to-track seek, usec */ 168 int fsize = 0; /* fragment size */ 169 int bsize = 0; /* block size */ 170 int cpg = DESCPG; /* cylinders/cylinder group */ 171 int cpgflg; /* cylinders/cylinder group flag was given */ 172 int minfree = MINFREE; /* free space threshold */ 173 int opt = DEFAULTOPT; /* optimization preference (space or time) */ 174 int density; /* number of bytes per inode */ 175 int maxcontig = 8; /* max contiguous blocks to allocate */ 176 int rotdelay = ROTDELAY; /* rotational delay between blocks */ 177 int maxbpg; /* maximum blocks per file in a cyl group */ 178 int nrpos = NRPOS; /* # of distinguished rotational positions */ 179 int bbsize = BBSIZE; /* boot block size */ 180 int sbsize = SBSIZE; /* superblock size */ 181 int mntflags = MNT_ASYNC; /* flags to be passed to mount */ 182 u_long memleft; /* virtual memory available */ 183 caddr_t membase; /* start address of memory based filesystem */ 184 #ifdef COMPAT 185 char *disktype; 186 int unlabeled; 187 #endif 188 189 char device[MAXPATHLEN]; 190 char *progname; 191 192 int 193 main(argc, argv) 194 int argc; 195 char *argv[]; 196 { 197 extern char *optarg; 198 extern int optind; 199 register int ch; 200 register struct partition *pp; 201 register struct disklabel *lp; 202 struct disklabel mfsfakelabel; 203 struct disklabel *getdisklabel(); 204 struct partition oldpartition; 205 struct stat st; 206 struct statfs *mp; 207 int fsi, fso, len, n, maxpartitions; 208 char *cp, *s1, *s2, *special, *opstring, buf[BUFSIZ]; 209 210 if (progname = strrchr(*argv, '/')) 211 ++progname; 212 else 213 progname = *argv; 214 215 if (strstr(progname, "mfs")) { 216 mfs = 1; 217 Nflag++; 218 } 219 220 maxpartitions = getmaxpartitions(); 221 if (maxpartitions > 26) 222 fatal("insane maxpartitions value %d", maxpartitions); 223 224 opstring = mfs ? 225 "NT:a:b:c:d:e:f:i:m:o:s:" : 226 "NOS:T:a:b:c:d:e:f:i:k:l:m:n:o:p:r:s:t:u:x:"; 227 while ((ch = getopt(argc, argv, opstring)) != EOF) 228 switch (ch) { 229 case 'N': 230 Nflag = 1; 231 break; 232 case 'O': 233 Oflag = 1; 234 break; 235 case 'S': 236 if ((sectorsize = atoi(optarg)) <= 0) 237 fatal("%s: bad sector size", optarg); 238 break; 239 #ifdef COMPAT 240 case 'T': 241 disktype = optarg; 242 break; 243 #endif 244 case 'a': 245 if ((maxcontig = atoi(optarg)) <= 0) 246 fatal("%s: bad maximum contiguous blocks\n", 247 optarg); 248 break; 249 case 'b': 250 if ((bsize = atoi(optarg)) < MINBSIZE) 251 fatal("%s: bad block size", optarg); 252 break; 253 case 'c': 254 if ((cpg = atoi(optarg)) <= 0) 255 fatal("%s: bad cylinders/group", optarg); 256 cpgflg++; 257 break; 258 case 'd': 259 if ((rotdelay = atoi(optarg)) < 0) 260 fatal("%s: bad rotational delay\n", optarg); 261 break; 262 case 'e': 263 if ((maxbpg = atoi(optarg)) <= 0) 264 fatal("%s: bad blocks per file in a cylinder group\n", 265 optarg); 266 break; 267 case 'f': 268 if ((fsize = atoi(optarg)) <= 0) 269 fatal("%s: bad fragment size", optarg); 270 break; 271 case 'i': 272 if ((density = atoi(optarg)) <= 0) 273 fatal("%s: bad bytes per inode\n", optarg); 274 break; 275 case 'k': 276 if ((trackskew = atoi(optarg)) < 0) 277 fatal("%s: bad track skew", optarg); 278 break; 279 case 'l': 280 if ((interleave = atoi(optarg)) <= 0) 281 fatal("%s: bad interleave", optarg); 282 break; 283 case 'm': 284 if ((minfree = atoi(optarg)) < 0 || minfree > 99) 285 fatal("%s: bad free space %%\n", optarg); 286 break; 287 case 'n': 288 if ((nrpos = atoi(optarg)) <= 0) 289 fatal("%s: bad rotational layout count\n", 290 optarg); 291 break; 292 case 'o': 293 if (mfs) 294 getmntopts(optarg, mopts, &mntflags); 295 else { 296 if (strcmp(optarg, "space") == 0) 297 opt = FS_OPTSPACE; 298 else if (strcmp(optarg, "time") == 0) 299 opt = FS_OPTTIME; 300 else 301 fatal("%s: unknown optimization preference: use `space' or `time'."); 302 } 303 break; 304 case 'p': 305 if ((trackspares = atoi(optarg)) < 0) 306 fatal("%s: bad spare sectors per track", 307 optarg); 308 break; 309 case 'r': 310 if ((rpm = atoi(optarg)) <= 0) 311 fatal("%s: bad revolutions/minute\n", optarg); 312 break; 313 case 's': 314 if ((fssize = atoi(optarg)) <= 0) 315 fatal("%s: bad file system size", optarg); 316 break; 317 case 't': 318 if ((ntracks = atoi(optarg)) <= 0) 319 fatal("%s: bad total tracks", optarg); 320 break; 321 case 'u': 322 if ((nsectors = atoi(optarg)) <= 0) 323 fatal("%s: bad sectors/track", optarg); 324 break; 325 case 'x': 326 if ((cylspares = atoi(optarg)) < 0) 327 fatal("%s: bad spare sectors per cylinder", 328 optarg); 329 break; 330 case '?': 331 default: 332 usage(); 333 } 334 argc -= optind; 335 argv += optind; 336 337 if (argc != 2 && (mfs || argc != 1)) 338 usage(); 339 340 special = argv[0]; 341 if (mfs && !strcmp(special, "swap")) { 342 /* 343 * it's an MFS, mounted on "swap." fake up a label. 344 * XXX XXX XXX 345 */ 346 fso = -1; /* XXX; normally done below. */ 347 348 memset(&mfsfakelabel, 0, sizeof(mfsfakelabel)); 349 mfsfakelabel.d_secsize = 512; 350 mfsfakelabel.d_nsectors = 64; 351 mfsfakelabel.d_ntracks = 16; 352 mfsfakelabel.d_ncylinders = 16; 353 mfsfakelabel.d_secpercyl = 1024; 354 mfsfakelabel.d_secperunit = 16384; 355 mfsfakelabel.d_rpm = 3600; 356 mfsfakelabel.d_interleave = 1; 357 mfsfakelabel.d_npartitions = 1; 358 mfsfakelabel.d_partitions[0].p_size = 16384; 359 mfsfakelabel.d_partitions[0].p_fsize = 1024; 360 mfsfakelabel.d_partitions[0].p_frag = 8; 361 mfsfakelabel.d_partitions[0].p_cpg = 16; 362 363 lp = &mfsfakelabel; 364 pp = &mfsfakelabel.d_partitions[0]; 365 366 goto havelabel; 367 } 368 cp = strrchr(special, '/'); 369 if (cp == 0) { 370 /* 371 * No path prefix; try /dev/r%s then /dev/%s. 372 */ 373 (void)sprintf(device, "%sr%s", _PATH_DEV, special); 374 if (stat(device, &st) == -1) 375 (void)sprintf(device, "%s%s", _PATH_DEV, special); 376 special = device; 377 } 378 if (Nflag) { 379 fso = -1; 380 } else { 381 fso = open(special, O_WRONLY); 382 if (fso < 0) 383 fatal("%s: %s", special, strerror(errno)); 384 385 /* Bail if target special is mounted */ 386 n = getmntinfo(&mp, MNT_NOWAIT); 387 if (n == 0) 388 fatal("%s: getmntinfo: %s", special, strerror(errno)); 389 390 len = sizeof(_PATH_DEV) - 1; 391 s1 = special; 392 if (strncmp(_PATH_DEV, s1, len) == 0) 393 s1 += len; 394 395 while (--n >= 0) { 396 s2 = mp->f_mntfromname; 397 if (strncmp(_PATH_DEV, s2, len) == 0) { 398 s2 += len - 1; 399 *s2 = 'r'; 400 } 401 if (strcmp(s1, s2) == 0 || strcmp(s1, &s2[1]) == 0) 402 fatal("%s is mounted on %s", 403 special, mp->f_mntonname); 404 ++mp; 405 } 406 } 407 if (mfs && disktype != NULL) { 408 lp = (struct disklabel *)getdiskbyname(disktype); 409 if (lp == NULL) 410 fatal("%s: unknown disk type", disktype); 411 pp = &lp->d_partitions[1]; 412 } else { 413 fsi = open(special, O_RDONLY); 414 if (fsi < 0) 415 fatal("%s: %s", special, strerror(errno)); 416 if (fstat(fsi, &st) < 0) 417 fatal("%s: %s", special, strerror(errno)); 418 if (!S_ISCHR(st.st_mode) && !mfs) 419 printf("%s: %s: not a character-special device\n", 420 progname, special); 421 cp = strchr(argv[0], '\0') - 1; 422 if (cp == 0 || (*cp < 'a' || *cp > ('a' + maxpartitions - 1)) 423 && !isdigit(*cp)) 424 fatal("%s: can't figure out file system partition", 425 argv[0]); 426 #ifdef COMPAT 427 if (!mfs && disktype == NULL) 428 disktype = argv[1]; 429 #endif 430 lp = getdisklabel(special, fsi); 431 if (isdigit(*cp)) 432 pp = &lp->d_partitions[0]; 433 else 434 pp = &lp->d_partitions[*cp - 'a']; 435 if (pp->p_size == 0) 436 fatal("%s: `%c' partition is unavailable", 437 argv[0], *cp); 438 if (pp->p_fstype == FS_BOOT) 439 fatal("%s: `%c' partition overlaps boot program", 440 argv[0], *cp); 441 } 442 havelabel: 443 if (fssize == 0) 444 fssize = pp->p_size; 445 if (fssize > pp->p_size && !mfs) 446 fatal("%s: maximum file system size on the `%c' partition is %d", 447 argv[0], *cp, pp->p_size); 448 if (rpm == 0) { 449 rpm = lp->d_rpm; 450 if (rpm <= 0) 451 rpm = 3600; 452 } 453 if (ntracks == 0) { 454 ntracks = lp->d_ntracks; 455 if (ntracks <= 0) 456 fatal("%s: no default #tracks", argv[0]); 457 } 458 if (nsectors == 0) { 459 nsectors = lp->d_nsectors; 460 if (nsectors <= 0) 461 fatal("%s: no default #sectors/track", argv[0]); 462 } 463 if (sectorsize == 0) { 464 sectorsize = lp->d_secsize; 465 if (sectorsize <= 0) 466 fatal("%s: no default sector size", argv[0]); 467 } 468 if (trackskew == -1) { 469 trackskew = lp->d_trackskew; 470 if (trackskew < 0) 471 trackskew = 0; 472 } 473 if (interleave == 0) { 474 interleave = lp->d_interleave; 475 if (interleave <= 0) 476 interleave = 1; 477 } 478 if (fsize == 0) { 479 fsize = pp->p_fsize; 480 if (fsize <= 0) 481 fsize = MAX(DFL_FRAGSIZE, lp->d_secsize); 482 } 483 if (bsize == 0) { 484 bsize = pp->p_frag * pp->p_fsize; 485 if (bsize <= 0) 486 bsize = MIN(DFL_BLKSIZE, 8 * fsize); 487 } 488 /* 489 * Maxcontig sets the default for the maximum number of blocks 490 * that may be allocated sequentially. With filesystem clustering 491 * it is possible to allocate contiguous blocks up to the maximum 492 * transfer size permitted by the controller or buffering. 493 */ 494 if (maxcontig == 0) 495 maxcontig = MAX(1, MIN(MAXPHYS, MAXBSIZE) / bsize - 1); 496 if (density == 0) 497 density = NFPI * fsize; 498 if (minfree < MINFREE && opt != FS_OPTSPACE) { 499 fprintf(stderr, "Warning: changing optimization to space "); 500 fprintf(stderr, "because minfree is less than %d%%\n", MINFREE); 501 opt = FS_OPTSPACE; 502 } 503 if (trackspares == -1) { 504 trackspares = lp->d_sparespertrack; 505 if (trackspares < 0) 506 trackspares = 0; 507 } 508 nphyssectors = nsectors + trackspares; 509 if (cylspares == -1) { 510 cylspares = lp->d_sparespercyl; 511 if (cylspares < 0) 512 cylspares = 0; 513 } 514 secpercyl = nsectors * ntracks - cylspares; 515 if (secpercyl != lp->d_secpercyl) 516 fprintf(stderr, "%s (%d) %s (%lu)\n", 517 "Warning: calculated sectors per cylinder", secpercyl, 518 "disagrees with disk label", lp->d_secpercyl); 519 if (maxbpg == 0) 520 maxbpg = MAXBLKPG(bsize); 521 headswitch = lp->d_headswitch; 522 trackseek = lp->d_trkseek; 523 #ifdef notdef /* label may be 0 if faked up by kernel */ 524 bbsize = lp->d_bbsize; 525 sbsize = lp->d_sbsize; 526 #endif 527 oldpartition = *pp; 528 #ifdef tahoe 529 realsectorsize = sectorsize; 530 if (sectorsize != DEV_BSIZE) { /* XXX */ 531 int secperblk = DEV_BSIZE / sectorsize; 532 533 sectorsize = DEV_BSIZE; 534 nsectors /= secperblk; 535 nphyssectors /= secperblk; 536 secpercyl /= secperblk; 537 fssize /= secperblk; 538 pp->p_size /= secperblk; 539 } 540 #endif 541 mkfs(pp, special, fsi, fso); 542 #ifdef tahoe 543 if (realsectorsize != DEV_BSIZE) 544 pp->p_size *= DEV_BSIZE / realsectorsize; 545 #endif 546 if (!Nflag && memcmp(pp, &oldpartition, sizeof(oldpartition))) 547 rewritelabel(special, fso, lp); 548 if (!Nflag) 549 close(fso); 550 close(fsi); 551 #ifdef MFS 552 if (mfs) { 553 struct mfs_args args; 554 555 sprintf(buf, "mfs:%d", getpid()); 556 args.fspec = buf; 557 args.export.ex_root = -2; 558 if (mntflags & MNT_RDONLY) 559 args.export.ex_flags = MNT_EXRDONLY; 560 else 561 args.export.ex_flags = 0; 562 args.base = membase; 563 args.size = fssize * sectorsize; 564 if (mount(MOUNT_MFS, argv[1], mntflags, &args) < 0) 565 fatal("%s: %s", argv[1], strerror(errno)); 566 } 567 #endif 568 exit(0); 569 } 570 571 #ifdef COMPAT 572 char lmsg[] = "%s: can't read disk label; disk type must be specified"; 573 #else 574 char lmsg[] = "%s: can't read disk label"; 575 #endif 576 577 struct disklabel * 578 getdisklabel(s, fd) 579 char *s; 580 int fd; 581 { 582 static struct disklabel lab; 583 584 if (ioctl(fd, DIOCGDINFO, (char *)&lab) < 0) { 585 #ifdef COMPAT 586 if (disktype) { 587 struct disklabel *lp, *getdiskbyname(); 588 589 unlabeled++; 590 lp = getdiskbyname(disktype); 591 if (lp == NULL) 592 fatal("%s: unknown disk type", disktype); 593 return (lp); 594 } 595 #endif 596 warn("ioctl (GDINFO)"); 597 fatal(lmsg, s); 598 } 599 return (&lab); 600 } 601 602 rewritelabel(s, fd, lp) 603 char *s; 604 int fd; 605 register struct disklabel *lp; 606 { 607 #ifdef COMPAT 608 if (unlabeled) 609 return; 610 #endif 611 lp->d_checksum = 0; 612 lp->d_checksum = dkcksum(lp); 613 if (ioctl(fd, DIOCWDINFO, (char *)lp) < 0) { 614 warn("ioctl (WDINFO)"); 615 fatal("%s: can't rewrite disk label", s); 616 } 617 #if vax 618 if (lp->d_type == DTYPE_SMD && lp->d_flags & D_BADSECT) { 619 register i; 620 int cfd; 621 daddr_t alt; 622 char specname[64]; 623 char blk[1024]; 624 char *cp; 625 626 /* 627 * Make name for 'c' partition. 628 */ 629 strcpy(specname, s); 630 cp = specname + strlen(specname) - 1; 631 if (!isdigit(*cp)) 632 *cp = 'c'; 633 cfd = open(specname, O_WRONLY); 634 if (cfd < 0) 635 fatal("%s: %s", specname, strerror(errno)); 636 memset(blk, 0, sizeof(blk)); 637 *(struct disklabel *)(blk + LABELOFFSET) = *lp; 638 alt = lp->d_ncylinders * lp->d_secpercyl - lp->d_nsectors; 639 for (i = 1; i < 11 && i < lp->d_nsectors; i += 2) { 640 off_t offset; 641 642 offset = alt + i; 643 offset *= lp->d_secsize; 644 if (lseek(cfd, offset, SEEK_SET) == -1) 645 fatal("lseek to badsector area: %s", 646 strerror(errno)); 647 if (write(cfd, blk, lp->d_secsize) < lp->d_secsize) 648 warn("alternate label %d write", i/2); 649 } 650 close(cfd); 651 } 652 #endif 653 } 654 655 /*VARARGS*/ 656 void 657 #if __STDC__ 658 fatal(const char *fmt, ...) 659 #else 660 fatal(fmt, va_alist) 661 char *fmt; 662 va_dcl 663 #endif 664 { 665 va_list ap; 666 667 #if __STDC__ 668 va_start(ap, fmt); 669 #else 670 va_start(ap); 671 #endif 672 if (fcntl(STDERR_FILENO, F_GETFL) < 0) { 673 openlog(progname, LOG_CONS, LOG_DAEMON); 674 vsyslog(LOG_ERR, fmt, ap); 675 closelog(); 676 } else { 677 vwarnx(fmt, ap); 678 } 679 va_end(ap); 680 exit(1); 681 /*NOTREACHED*/ 682 } 683 684 int 685 getmaxpartitions() 686 { 687 int maxpart, mib[2]; 688 size_t varlen; 689 690 mib[0] = CTL_KERN; 691 mib[1] = KERN_MAXPARTITIONS; 692 varlen = sizeof(maxpart); 693 if (sysctl(mib, 2, &maxpart, &varlen, NULL, 0) < 0) 694 fatal("getmaxpartitions: %s", strerror(errno)); 695 696 return (maxpart); 697 } 698 699 usage() 700 { 701 if (mfs) { 702 fprintf(stderr, 703 "usage: %s [ -fsoptions ] special-device mount-point\n", 704 progname); 705 } else 706 fprintf(stderr, 707 "usage: %s [ -fsoptions ] special-device%s\n", 708 progname, 709 #ifdef COMPAT 710 " [device-type]"); 711 #else 712 ""); 713 #endif 714 fprintf(stderr, "where fsoptions are:\n"); 715 fprintf(stderr, 716 "\t-N do not create file system, just print out parameters\n"); 717 fprintf(stderr, "\t-O create a 4.3BSD format filesystem\n"); 718 fprintf(stderr, "\t-S sector size\n"); 719 #ifdef COMPAT 720 fprintf(stderr, "\t-T disktype\n"); 721 #endif 722 fprintf(stderr, "\t-a maximum contiguous blocks\n"); 723 fprintf(stderr, "\t-b block size\n"); 724 fprintf(stderr, "\t-c cylinders/group\n"); 725 fprintf(stderr, "\t-d rotational delay between contiguous blocks\n"); 726 fprintf(stderr, "\t-e maximum blocks per file in a cylinder group\n"); 727 fprintf(stderr, "\t-f frag size\n"); 728 fprintf(stderr, "\t-i number of bytes per inode\n"); 729 fprintf(stderr, "\t-k sector 0 skew, per track\n"); 730 fprintf(stderr, "\t-l hardware sector interleave\n"); 731 fprintf(stderr, "\t-m minimum free space %%\n"); 732 fprintf(stderr, "\t-n number of distinguished rotational positions\n"); 733 fprintf(stderr, "\t-o optimization preference (`space' or `time')\n"); 734 fprintf(stderr, "\t-p spare sectors per track\n"); 735 fprintf(stderr, "\t-s file system size (sectors)\n"); 736 fprintf(stderr, "\t-r revolutions/minute\n"); 737 fprintf(stderr, "\t-t tracks/cylinder\n"); 738 fprintf(stderr, "\t-u sectors/track\n"); 739 fprintf(stderr, "\t-x spare sectors per cylinder\n"); 740 exit(1); 741 } 742
Indexes created Fri Sep 26 20:09:58 GMT 2025