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 * @(#) Copyright (c) 1983, 1989, 1993, 1994 The Regents of the University of California. All rights reserved. 34 * @(#)newfs.c 8.13 (Berkeley) 5/1/95 35 * $FreeBSD: src/sbin/newfs/newfs.c,v 1.30.2.9 2003/05/13 12:03:55 joerg Exp $ 36 * $DragonFly: src/sbin/newfs/newfs.c,v 1.6 2003/12/01 04:35:39 dillon Exp $ 37 */ 38 39 /* 40 * newfs: friendly front end to mkfs 41 */ 42 #include <sys/param.h> 43 #include <sys/stat.h> 44 #include <sys/disklabel.h> 45 #include <sys/file.h> 46 #include <sys/mount.h> 47 48 #include <vfs/ufs/dir.h> 49 #include <vfs/ufs/dinode.h> 50 #include <vfs/ufs/fs.h> 51 #include <vfs/ufs/ufsmount.h> 52 53 #include <ctype.h> 54 #include <err.h> 55 #include <errno.h> 56 #include <paths.h> 57 #include <stdio.h> 58 #include <stdlib.h> 59 #include <string.h> 60 #include <syslog.h> 61 #include <unistd.h> 62 63 #ifdef MFS 64 #include <sys/types.h> 65 #include <sys/mman.h> 66 #endif 67 68 #if __STDC__ 69 #include <stdarg.h> 70 #else 71 #include <varargs.h> 72 #endif 73 74 #include "mntopts.h" 75 #include "defs.h" 76 77 struct mntopt mopts[] = { 78 MOPT_STDOPTS, 79 MOPT_ASYNC, 80 { NULL }, 81 }; 82 83 void fatal(const char *fmt, ...); 84 85 #define COMPAT /* allow non-labeled disks */ 86 87 /* 88 * The following two constants set the default block and fragment sizes. 89 * Both constants must be a power of 2 and meet the following constraints: 90 * MINBSIZE <= DESBLKSIZE <= MAXBSIZE 91 * sectorsize <= DESFRAGSIZE <= DESBLKSIZE 92 * DESBLKSIZE / DESFRAGSIZE <= 8 93 */ 94 #define DFL_FRAGSIZE 2048 95 #define DFL_BLKSIZE 16384 96 97 /* 98 * Cylinder groups may have up to many cylinders. The actual 99 * number used depends upon how much information can be stored 100 * on a single cylinder. The default is to use as many as possible 101 * cylinders per group. 102 */ 103 #define DESCPG 65536 /* desired fs_cpg ("infinity") */ 104 105 /* 106 * Once upon a time... 107 * ROTDELAY gives the minimum number of milliseconds to initiate 108 * another disk transfer on the same cylinder. It is used in 109 * determining the rotationally optimal layout for disk blocks 110 * within a file; the default of fs_rotdelay is 4ms. 111 * 112 * ...but now we make this 0 to disable the rotdelay delay because 113 * modern drives with read/write-behind achieve higher performance 114 * without the delay. 115 */ 116 #define ROTDELAY 0 117 118 /* 119 * MAXBLKPG determines the maximum number of data blocks which are 120 * placed in a single cylinder group. The default is one indirect 121 * block worth of data blocks. 122 */ 123 #define MAXBLKPG(bsize) ((bsize) / sizeof(daddr_t)) 124 125 /* 126 * Each file system has a number of inodes statically allocated. 127 * We allocate one inode slot per NFPI fragments, expecting this 128 * to be far more than we will ever need. 129 */ 130 #define NFPI 4 131 132 /* 133 * Once upon a time... 134 * For each cylinder we keep track of the availability of blocks at different 135 * rotational positions, so that we can lay out the data to be picked 136 * up with minimum rotational latency. NRPOS is the default number of 137 * rotational positions that we distinguish. With NRPOS of 8 the resolution 138 * of our summary information is 2ms for a typical 3600 rpm drive. 139 * 140 * ...but now we make this 1 (which essentially disables the rotational 141 * position table because modern drives with read-ahead and write-behind do 142 * better without the rotational position table. 143 */ 144 #define NRPOS 1 /* number distinct rotational positions */ 145 146 /* 147 * About the same time as the above, we knew what went where on the disks. 148 * no longer so, so kill the code which finds the different platters too... 149 * We do this by saying one head, with a lot of sectors on it. 150 * The number of sectors are used to determine the size of a cyl-group. 151 * Kirk suggested one or two meg per "cylinder" so we say two. 152 */ 153 #define NTRACKS 1 /* number of heads */ 154 #define NSECTORS 4096 /* number of sectors */ 155 156 int mfs; /* run as the memory based filesystem */ 157 char *mfs_mtpt; /* mount point for mfs */ 158 struct stat mfs_mtstat; /* stat prior to mount */ 159 int Nflag; /* run without writing file system */ 160 int Oflag; /* format as an 4.3BSD file system */ 161 int Cflag; /* copy underlying filesystem (mfs only) */ 162 int Uflag; /* enable soft updates for file system */ 163 int fssize; /* file system size */ 164 int ntracks = NTRACKS; /* # tracks/cylinder */ 165 int nsectors = NSECTORS; /* # sectors/track */ 166 int nphyssectors; /* # sectors/track including spares */ 167 int secpercyl; /* sectors per cylinder */ 168 int trackspares = -1; /* spare sectors per track */ 169 int cylspares = -1; /* spare sectors per cylinder */ 170 int sectorsize; /* bytes/sector */ 171 int realsectorsize; /* bytes/sector in hardware */ 172 int rpm; /* revolutions/minute of drive */ 173 int interleave; /* hardware sector interleave */ 174 int trackskew = -1; /* sector 0 skew, per track */ 175 int headswitch; /* head switch time, usec */ 176 int trackseek; /* track-to-track seek, usec */ 177 int fsize = 0; /* fragment size */ 178 int bsize = 0; /* block size */ 179 int cpg = DESCPG; /* cylinders/cylinder group */ 180 int cpgflg; /* cylinders/cylinder group flag was given */ 181 int minfree = MINFREE; /* free space threshold */ 182 int opt = DEFAULTOPT; /* optimization preference (space or time) */ 183 int density; /* number of bytes per inode */ 184 int maxcontig = 0; /* max contiguous blocks to allocate */ 185 int rotdelay = ROTDELAY; /* rotational delay between blocks */ 186 int maxbpg; /* maximum blocks per file in a cyl group */ 187 int nrpos = NRPOS; /* # of distinguished rotational positions */ 188 int avgfilesize = AVFILESIZ;/* expected average file size */ 189 int avgfilesperdir = AFPDIR;/* expected number of files per directory */ 190 int bbsize = BBSIZE; /* boot block size */ 191 int sbsize = SBSIZE; /* superblock size */ 192 int mntflags = MNT_ASYNC; /* flags to be passed to mount */ 193 int t_or_u_flag = 0; /* user has specified -t or -u */ 194 u_long memleft; /* virtual memory available */ 195 caddr_t membase; /* start address of memory based filesystem */ 196 char *filename; 197 #ifdef COMPAT 198 char *disktype; 199 int unlabeled; 200 #endif 201 202 char device[MAXPATHLEN]; 203 char *progname; 204 205 static void usage(void); 206 207 int 208 main(int argc, char **argv) 209 { 210 register int ch; 211 register struct partition *pp; 212 register struct disklabel *lp; 213 struct disklabel mfsfakelabel; 214 struct disklabel *getdisklabel(); 215 struct partition oldpartition; 216 struct stat st; 217 struct statfs *mp; 218 int fsi, fso, len, n, vflag; 219 char *cp, *s1, *s2, *special, *opstring; 220 #ifdef MFS 221 struct vfsconf vfc; 222 int error; 223 char buf[BUFSIZ]; 224 #endif 225 226 vflag = 0; 227 if ((progname = strrchr(*argv, '/'))) 228 ++progname; 229 else 230 progname = *argv; 231 232 if (strstr(progname, "mfs")) { 233 mfs = 1; 234 Nflag++; 235 } 236 237 opstring = mfs ? 238 "NCF:T:Ua:b:c:d:e:f:g:h:i:m:o:s:v" : 239 "NOS:T:Ua:b:c:d:e:f:g:h:i:k:l:m:n:o:p:r:s:t:u:vx:"; 240 while ((ch = getopt(argc, argv, opstring)) != -1) 241 switch (ch) { 242 case 'N': 243 Nflag = 1; 244 break; 245 case 'O': 246 Oflag = 1; 247 break; 248 case 'C': 249 Cflag = 1; /* MFS only */ 250 break; 251 case 'S': 252 if ((sectorsize = atoi(optarg)) <= 0) 253 fatal("%s: bad sector size", optarg); 254 break; 255 #ifdef COMPAT 256 case 'T': 257 disktype = optarg; 258 break; 259 #endif 260 case 'F': 261 filename = optarg; 262 break; 263 case 'U': 264 Uflag = 1; 265 break; 266 case 'a': 267 if ((maxcontig = atoi(optarg)) <= 0) 268 fatal("%s: bad maximum contiguous blocks", 269 optarg); 270 break; 271 case 'b': 272 if ((bsize = atoi(optarg)) < MINBSIZE) 273 fatal("%s: bad block size", optarg); 274 break; 275 case 'c': 276 if ((cpg = atoi(optarg)) <= 0) 277 fatal("%s: bad cylinders/group", optarg); 278 cpgflg++; 279 break; 280 case 'd': 281 if ((rotdelay = atoi(optarg)) < 0) 282 fatal("%s: bad rotational delay", optarg); 283 break; 284 case 'e': 285 if ((maxbpg = atoi(optarg)) <= 0) 286 fatal("%s: bad blocks per file in a cylinder group", 287 optarg); 288 break; 289 case 'f': 290 if ((fsize = atoi(optarg)) <= 0) 291 fatal("%s: bad fragment size", optarg); 292 break; 293 case 'g': 294 if ((avgfilesize = atoi(optarg)) <= 0) 295 fatal("%s: bad average file size", optarg); 296 break; 297 case 'h': 298 if ((avgfilesperdir = atoi(optarg)) <= 0) 299 fatal("%s: bad average files per dir", optarg); 300 break; 301 case 'i': 302 if ((density = atoi(optarg)) <= 0) 303 fatal("%s: bad bytes per inode", optarg); 304 break; 305 case 'k': 306 if ((trackskew = atoi(optarg)) < 0) 307 fatal("%s: bad track skew", optarg); 308 break; 309 case 'l': 310 if ((interleave = atoi(optarg)) <= 0) 311 fatal("%s: bad interleave", optarg); 312 break; 313 case 'm': 314 if ((minfree = atoi(optarg)) < 0 || minfree > 99) 315 fatal("%s: bad free space %%", optarg); 316 break; 317 case 'n': 318 if ((nrpos = atoi(optarg)) < 0) 319 fatal("%s: bad rotational layout count", 320 optarg); 321 if (nrpos == 0) 322 nrpos = 1; 323 break; 324 case 'o': 325 if (mfs) 326 getmntopts(optarg, mopts, &mntflags, 0); 327 else { 328 if (strcmp(optarg, "space") == 0) 329 opt = FS_OPTSPACE; 330 else if (strcmp(optarg, "time") == 0) 331 opt = FS_OPTTIME; 332 else 333 fatal("%s: unknown optimization preference: use `space' or `time'", optarg); 334 } 335 break; 336 case 'p': 337 if ((trackspares = atoi(optarg)) < 0) 338 fatal("%s: bad spare sectors per track", 339 optarg); 340 break; 341 case 'r': 342 if ((rpm = atoi(optarg)) <= 0) 343 fatal("%s: bad revolutions/minute", optarg); 344 break; 345 case 's': 346 if ((fssize = atoi(optarg)) <= 0) 347 fatal("%s: bad file system size", optarg); 348 break; 349 case 't': 350 t_or_u_flag++; 351 if ((ntracks = atoi(optarg)) < 0) 352 fatal("%s: bad total tracks", optarg); 353 break; 354 case 'u': 355 t_or_u_flag++; 356 if ((nsectors = atoi(optarg)) < 0) 357 fatal("%s: bad sectors/track", optarg); 358 break; 359 case 'v': 360 vflag = 1; 361 break; 362 case 'x': 363 if ((cylspares = atoi(optarg)) < 0) 364 fatal("%s: bad spare sectors per cylinder", 365 optarg); 366 break; 367 case '?': 368 default: 369 usage(); 370 } 371 argc -= optind; 372 argv += optind; 373 374 if (argc != 2 && (mfs || argc != 1)) 375 usage(); 376 377 special = argv[0]; 378 /* Copy the NetBSD way of faking up a disk label */ 379 if (mfs && !strcmp(special, "swap")) { 380 /* 381 * it's an MFS, mounted on "swap." fake up a label. 382 * XXX XXX XXX 383 */ 384 fso = -1; /* XXX; normally done below. */ 385 386 memset(&mfsfakelabel, 0, sizeof(mfsfakelabel)); 387 mfsfakelabel.d_secsize = 512; 388 mfsfakelabel.d_nsectors = 64; 389 mfsfakelabel.d_ntracks = 16; 390 mfsfakelabel.d_ncylinders = 16; 391 mfsfakelabel.d_secpercyl = 1024; 392 mfsfakelabel.d_secperunit = 16384; 393 mfsfakelabel.d_rpm = 3600; 394 mfsfakelabel.d_interleave = 1; 395 mfsfakelabel.d_npartitions = 1; 396 mfsfakelabel.d_partitions[0].p_size = 16384; 397 mfsfakelabel.d_partitions[0].p_fsize = 1024; 398 mfsfakelabel.d_partitions[0].p_frag = 8; 399 mfsfakelabel.d_partitions[0].p_cpg = 16; 400 401 lp = &mfsfakelabel; 402 pp = &mfsfakelabel.d_partitions[0]; 403 404 goto havelabel; 405 } 406 407 cp = strrchr(special, '/'); 408 if (cp == 0) { 409 /* 410 * No path prefix; try /dev/%s. 411 */ 412 (void)snprintf(device, sizeof(device), "%s%s", _PATH_DEV, special); 413 special = device; 414 } 415 if (Nflag) { 416 fso = -1; 417 } else { 418 fso = open(special, O_WRONLY); 419 if (fso < 0) 420 fatal("%s: %s", special, strerror(errno)); 421 422 /* Bail if target special is mounted */ 423 n = getmntinfo(&mp, MNT_NOWAIT); 424 if (n == 0) 425 fatal("%s: getmntinfo: %s", special, strerror(errno)); 426 427 len = sizeof(_PATH_DEV) - 1; 428 s1 = special; 429 if (strncmp(_PATH_DEV, s1, len) == 0) 430 s1 += len; 431 432 while (--n >= 0) { 433 s2 = mp->f_mntfromname; 434 if (strncmp(_PATH_DEV, s2, len) == 0) { 435 s2 += len - 1; 436 *s2 = 'r'; 437 } 438 if (strcmp(s1, s2) == 0 || strcmp(s1, &s2[1]) == 0) 439 fatal("%s is mounted on %s", 440 special, mp->f_mntonname); 441 ++mp; 442 } 443 } 444 if (mfs && disktype != NULL) { 445 lp = (struct disklabel *)getdiskbyname(disktype); 446 if (lp == NULL) 447 fatal("%s: unknown disk type", disktype); 448 pp = &lp->d_partitions[1]; 449 } else { 450 fsi = open(special, O_RDONLY); 451 if (fsi < 0) 452 fatal("%s: %s", special, strerror(errno)); 453 if (fstat(fsi, &st) < 0) 454 fatal("%s: %s", special, strerror(errno)); 455 if ((st.st_mode & S_IFMT) != S_IFCHR && !mfs) 456 printf("%s: %s: not a character-special device\n", 457 progname, special); 458 cp = strchr(argv[0], '\0'); 459 if (cp == argv[0]) 460 fatal("null special file name"); 461 cp--; 462 if (!vflag && (*cp < 'a' || *cp > 'h') && !isdigit(*cp)) 463 fatal("%s: can't figure out file system partition", 464 argv[0]); 465 #ifdef COMPAT 466 if (!mfs && disktype == NULL) 467 disktype = argv[1]; 468 #endif 469 lp = getdisklabel(special, fsi); 470 if (vflag || isdigit(*cp)) 471 pp = &lp->d_partitions[0]; 472 else 473 pp = &lp->d_partitions[*cp - 'a']; 474 if (pp->p_size == 0) 475 fatal("%s: `%c' partition is unavailable", 476 argv[0], *cp); 477 if (pp->p_fstype == FS_BOOT) 478 fatal("%s: `%c' partition overlaps boot program", 479 argv[0], *cp); 480 } 481 havelabel: 482 if (fssize == 0) 483 fssize = pp->p_size; 484 if (fssize > pp->p_size && !mfs) 485 fatal("%s: maximum file system size on the `%c' partition is %d", 486 argv[0], *cp, pp->p_size); 487 if (rpm == 0) { 488 rpm = lp->d_rpm; 489 if (rpm <= 0) 490 rpm = 3600; 491 } 492 if (ntracks == 0) { 493 ntracks = lp->d_ntracks; 494 if (ntracks <= 0) 495 fatal("%s: no default #tracks", argv[0]); 496 } 497 if (nsectors == 0) { 498 nsectors = lp->d_nsectors; 499 if (nsectors <= 0) 500 fatal("%s: no default #sectors/track", argv[0]); 501 } 502 if (sectorsize == 0) { 503 sectorsize = lp->d_secsize; 504 if (sectorsize <= 0) 505 fatal("%s: no default sector size", argv[0]); 506 } 507 if (trackskew == -1) { 508 trackskew = lp->d_trackskew; 509 if (trackskew < 0) 510 trackskew = 0; 511 } 512 if (interleave == 0) { 513 interleave = lp->d_interleave; 514 if (interleave <= 0) 515 interleave = 1; 516 } 517 if (fsize == 0) { 518 fsize = pp->p_fsize; 519 if (fsize <= 0) 520 fsize = MAX(DFL_FRAGSIZE, lp->d_secsize); 521 } 522 if (bsize == 0) { 523 bsize = pp->p_frag * pp->p_fsize; 524 if (bsize <= 0) 525 bsize = MIN(DFL_BLKSIZE, 8 * fsize); 526 } 527 /* 528 * Maxcontig sets the default for the maximum number of blocks 529 * that may be allocated sequentially. With filesystem clustering 530 * it is possible to allocate contiguous blocks up to the maximum 531 * transfer size permitted by the controller or buffering. 532 */ 533 if (maxcontig == 0) 534 maxcontig = MAX(1, MAXPHYS / bsize - 1); 535 if (density == 0) 536 density = NFPI * fsize; 537 if (minfree < MINFREE && opt != FS_OPTSPACE) { 538 fprintf(stderr, "Warning: changing optimization to space "); 539 fprintf(stderr, "because minfree is less than %d%%\n", MINFREE); 540 opt = FS_OPTSPACE; 541 } 542 if (trackspares == -1) { 543 trackspares = lp->d_sparespertrack; 544 if (trackspares < 0) 545 trackspares = 0; 546 } 547 nphyssectors = nsectors + trackspares; 548 if (cylspares == -1) { 549 cylspares = lp->d_sparespercyl; 550 if (cylspares < 0) 551 cylspares = 0; 552 } 553 secpercyl = nsectors * ntracks - cylspares; 554 /* 555 * Only complain if -t or -u have been specified; the default 556 * case (4096 sectors per cylinder) is intended to disagree 557 * with the disklabel. 558 */ 559 if (t_or_u_flag && secpercyl != lp->d_secpercyl) 560 fprintf(stderr, "%s (%d) %s (%lu)\n", 561 "Warning: calculated sectors per cylinder", secpercyl, 562 "disagrees with disk label", (u_long)lp->d_secpercyl); 563 if (maxbpg == 0) 564 maxbpg = MAXBLKPG(bsize); 565 headswitch = lp->d_headswitch; 566 trackseek = lp->d_trkseek; 567 #ifdef notdef /* label may be 0 if faked up by kernel */ 568 bbsize = lp->d_bbsize; 569 sbsize = lp->d_sbsize; 570 #endif 571 oldpartition = *pp; 572 #ifdef tahoe 573 realsectorsize = sectorsize; 574 if (sectorsize != DEV_BSIZE) { /* XXX */ 575 int secperblk = DEV_BSIZE / sectorsize; 576 577 sectorsize = DEV_BSIZE; 578 nsectors /= secperblk; 579 nphyssectors /= secperblk; 580 secpercyl /= secperblk; 581 fssize /= secperblk; 582 pp->p_size /= secperblk; 583 } 584 #else 585 realsectorsize = sectorsize; 586 if (sectorsize != DEV_BSIZE) { /* XXX */ 587 int secperblk = sectorsize / DEV_BSIZE; 588 589 sectorsize = DEV_BSIZE; 590 nsectors *= secperblk; 591 nphyssectors *= secperblk; 592 secpercyl *= secperblk; 593 fssize *= secperblk; 594 pp->p_size *= secperblk; 595 } 596 #endif 597 if (mfs) { 598 mfs_mtpt = argv[1]; 599 if ( 600 stat(mfs_mtpt, &mfs_mtstat) < 0 || 601 !S_ISDIR(mfs_mtstat.st_mode) 602 ) { 603 fatal("mount point not dir: %s", mfs_mtpt); 604 } 605 } 606 mkfs(pp, special, fsi, fso, (Cflag && mfs) ? argv[1] : NULL); 607 #ifdef tahoe 608 if (realsectorsize != DEV_BSIZE) 609 pp->p_size *= DEV_BSIZE / realsectorsize; 610 #else 611 if (realsectorsize != DEV_BSIZE) 612 pp->p_size /= realsectorsize /DEV_BSIZE; 613 #endif 614 if (!Nflag && bcmp(pp, &oldpartition, sizeof(oldpartition))) 615 rewritelabel(special, fso, lp); 616 if (!Nflag) 617 close(fso); 618 close(fsi); 619 #ifdef MFS 620 if (mfs) { 621 struct mfs_args args; 622 623 snprintf(buf, sizeof(buf), "mfs:%d", getpid()); 624 args.fspec = buf; 625 args.export.ex_root = -2; 626 if (mntflags & MNT_RDONLY) 627 args.export.ex_flags = MNT_EXRDONLY; 628 else 629 args.export.ex_flags = 0; 630 args.base = membase; 631 args.size = fssize * sectorsize; 632 633 error = getvfsbyname("mfs", &vfc); 634 if (error && vfsisloadable("mfs")) { 635 if (vfsload("mfs")) 636 fatal("vfsload(mfs)"); 637 endvfsent(); /* flush cache */ 638 error = getvfsbyname("mfs", &vfc); 639 } 640 if (error) 641 fatal("mfs filesystem not available"); 642 643 if (mount(vfc.vfc_name, argv[1], mntflags, &args) < 0) 644 fatal("%s: %s", argv[1], strerror(errno)); 645 if (filename) { 646 munmap(membase,fssize * sectorsize); 647 } 648 } 649 #endif 650 exit(0); 651 } 652 653 #ifdef COMPAT 654 char lmsg[] = "%s: can't read disk label; disk type must be specified"; 655 #else 656 char lmsg[] = "%s: can't read disk label"; 657 #endif 658 659 struct disklabel * 660 getdisklabel(char *s, int fd) 661 { 662 static struct disklabel lab; 663 664 if (ioctl(fd, DIOCGDINFO, (char *)&lab) < 0) { 665 #ifdef COMPAT 666 if (disktype) { 667 struct disklabel *lp, *getdiskbyname(); 668 669 unlabeled++; 670 lp = getdiskbyname(disktype); 671 if (lp == NULL) 672 fatal("%s: unknown disk type", disktype); 673 return (lp); 674 } 675 #endif 676 warn("ioctl (GDINFO)"); 677 fatal(lmsg, s); 678 } 679 return (&lab); 680 } 681 682 rewritelabel(char *s, int fd, register struct disklabel *lp) 683 { 684 #ifdef COMPAT 685 if (unlabeled) 686 return; 687 #endif 688 lp->d_checksum = 0; 689 lp->d_checksum = dkcksum(lp); 690 if (ioctl(fd, DIOCWDINFO, (char *)lp) < 0) { 691 warn("ioctl (WDINFO)"); 692 fatal("%s: can't rewrite disk label", s); 693 } 694 } 695 696 /*VARARGS*/ 697 void 698 fatal(const char *fmt, ...) 699 { 700 va_list ap; 701 702 va_start(ap, fmt); 703 if (fcntl(STDERR_FILENO, F_GETFL) < 0) { 704 openlog(progname, LOG_CONS, LOG_DAEMON); 705 vsyslog(LOG_ERR, fmt, ap); 706 closelog(); 707 } else { 708 vwarnx(fmt, ap); 709 } 710 va_end(ap); 711 exit(1); 712 /*NOTREACHED*/ 713 } 714 715 static void 716 usage(void) 717 { 718 if (mfs) { 719 fprintf(stderr, 720 "usage: %s [ -fsoptions ] special-device mount-point\n", 721 progname); 722 } else 723 fprintf(stderr, 724 "usage: %s [ -fsoptions ] special-device%s\n", 725 progname, 726 #ifdef COMPAT 727 " [device-type]"); 728 #else 729 ""); 730 #endif 731 fprintf(stderr, "where fsoptions are:\n"); 732 fprintf(stderr, 733 "\t-N do not create file system, just print out parameters\n"); 734 fprintf(stderr, "\t-O create a 4.3BSD format filesystem\n"); 735 fprintf(stderr, "\t-S sector size\n"); 736 #ifdef COMPAT 737 fprintf(stderr, "\t-T disktype\n"); 738 #endif 739 fprintf(stderr, "\t-U enable soft updates\n"); 740 fprintf(stderr, "\t-a maximum contiguous blocks\n"); 741 fprintf(stderr, "\t-b block size\n"); 742 fprintf(stderr, "\t-c cylinders/group\n"); 743 fprintf(stderr, "\t-d rotational delay between contiguous blocks\n"); 744 fprintf(stderr, "\t-e maximum blocks per file in a cylinder group\n"); 745 fprintf(stderr, "\t-f frag size\n"); 746 fprintf(stderr, "\t-g average file size\n"); 747 fprintf(stderr, "\t-h average files per directory\n"); 748 fprintf(stderr, "\t-i number of bytes per inode\n"); 749 fprintf(stderr, "\t-k sector 0 skew, per track\n"); 750 fprintf(stderr, "\t-l hardware sector interleave\n"); 751 fprintf(stderr, "\t-m minimum free space %%\n"); 752 fprintf(stderr, "\t-n number of distinguished rotational positions\n"); 753 fprintf(stderr, "\t-o optimization preference (`space' or `time')\n"); 754 fprintf(stderr, "\t-p spare sectors per track\n"); 755 fprintf(stderr, "\t-s file system size (sectors)\n"); 756 fprintf(stderr, "\t-r revolutions/minute\n"); 757 fprintf(stderr, "\t-t tracks/cylinder\n"); 758 fprintf(stderr, "\t-u sectors/track\n"); 759 fprintf(stderr, 760 "\t-v do not attempt to determine partition name from device name\n"); 761 fprintf(stderr, "\t-x spare sectors per cylinder\n"); 762 exit(1); 763 } 764