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 1.17 2007/06/19 19:18:20 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/diskslice.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 #include <disktab.h> 63 64 #ifdef MFS 65 #include <sys/types.h> 66 #include <sys/mman.h> 67 #endif 68 69 #if __STDC__ 70 #include <stdarg.h> 71 #else 72 #include <varargs.h> 73 #endif 74 75 #include "mntopts.h" 76 #include "defs.h" 77 78 struct mntopt mopts[] = { 79 MOPT_STDOPTS, 80 MOPT_ASYNC, 81 MOPT_NULL, 82 }; 83 84 void fatal(const char *fmt, ...); 85 86 #define COMPAT /* allow non-labeled disks */ 87 88 /* 89 * The following two constants set the default block and fragment sizes. 90 * Both constants must be a power of 2 and meet the following constraints: 91 * MINBSIZE <= DESBLKSIZE <= MAXBSIZE 92 * sectorsize <= DESFRAGSIZE <= DESBLKSIZE 93 * DESBLKSIZE / DESFRAGSIZE <= 8 94 */ 95 #define DFL_FRAGSIZE 2048 96 #define DFL_BLKSIZE 16384 97 98 /* 99 * Cylinder groups may have up to many cylinders. The actual 100 * number used depends upon how much information can be stored 101 * on a single cylinder. The default is to use as many as possible 102 * cylinders per group. 103 */ 104 #define DESCPG 65536 /* desired fs_cpg ("infinity") */ 105 106 /* 107 * Once upon a time... 108 * ROTDELAY gives the minimum number of milliseconds to initiate 109 * another disk transfer on the same cylinder. It is used in 110 * determining the rotationally optimal layout for disk blocks 111 * within a file; the default of fs_rotdelay is 4ms. 112 * 113 * ...but now we make this 0 to disable the rotdelay delay because 114 * modern drives with read/write-behind achieve higher performance 115 * without the delay. 116 */ 117 #define ROTDELAY 0 118 119 /* 120 * MAXBLKPG determines the maximum number of data blocks which are 121 * placed in a single cylinder group. The default is one indirect 122 * block worth of data blocks. 123 */ 124 #define MAXBLKPG(bsize) ((bsize) / sizeof(daddr_t)) 125 126 /* 127 * Each file system has a number of inodes statically allocated. 128 * We allocate one inode slot per NFPI fragments, expecting this 129 * to be far more than we will ever need. 130 */ 131 #define NFPI 4 132 133 /* 134 * Once upon a time... 135 * For each cylinder we keep track of the availability of blocks at different 136 * rotational positions, so that we can lay out the data to be picked 137 * up with minimum rotational latency. NRPOS is the default number of 138 * rotational positions that we distinguish. With NRPOS of 8 the resolution 139 * of our summary information is 2ms for a typical 3600 rpm drive. 140 * 141 * ...but now we make this 1 (which essentially disables the rotational 142 * position table because modern drives with read-ahead and write-behind do 143 * better without the rotational position table. 144 */ 145 #define NRPOS 1 /* number distinct rotational positions */ 146 147 /* 148 * About the same time as the above, we knew what went where on the disks. 149 * no longer so, so kill the code which finds the different platters too... 150 * We do this by saying one head, with a lot of sectors on it. 151 * The number of sectors are used to determine the size of a cyl-group. 152 * Kirk suggested one or two meg per "cylinder" so we say two. 153 */ 154 #define NTRACKS 1 /* number of heads */ 155 #define NSECTORS 4096 /* number of sectors */ 156 157 int mfs; /* run as the memory based filesystem */ 158 char *mfs_mtpt; /* mount point for mfs */ 159 struct stat mfs_mtstat; /* stat prior to mount */ 160 int Nflag; /* run without writing file system */ 161 int Oflag; /* format as an 4.3BSD file system */ 162 int Cflag; /* copy underlying filesystem (mfs only) */ 163 int Uflag; /* enable soft updates for file system */ 164 u_long fssize; /* file system size */ 165 int ntracks = NTRACKS; /* # tracks/cylinder */ 166 int nsectors = NSECTORS; /* # sectors/track */ 167 int nphyssectors; /* # sectors/track including spares */ 168 int secpercyl; /* sectors per cylinder */ 169 int trackspares = -1; /* spare sectors per track */ 170 int cylspares = -1; /* spare sectors per cylinder */ 171 int sectorsize; /* bytes/sector */ 172 int realsectorsize; /* bytes/sector in hardware */ 173 int rpm; /* revolutions/minute of drive */ 174 int interleave; /* hardware sector interleave */ 175 int trackskew = -1; /* sector 0 skew, per track */ 176 int headswitch; /* head switch time, usec */ 177 int trackseek; /* track-to-track seek, usec */ 178 int fsize = 0; /* fragment size */ 179 int bsize = 0; /* block size */ 180 int cpg = DESCPG; /* cylinders/cylinder group */ 181 int cpgflg; /* cylinders/cylinder group flag was given */ 182 int minfree = MINFREE; /* free space threshold */ 183 int opt = DEFAULTOPT; /* optimization preference (space or time) */ 184 int density; /* number of bytes per inode */ 185 int maxcontig = 0; /* max contiguous blocks to allocate */ 186 int rotdelay = ROTDELAY; /* rotational delay between blocks */ 187 int maxbpg; /* maximum blocks per file in a cyl group */ 188 int nrpos = NRPOS; /* # of distinguished rotational positions */ 189 int avgfilesize = AVFILESIZ;/* expected average file size */ 190 int avgfilesperdir = AFPDIR;/* expected number of files per directory */ 191 int bbsize = BBSIZE; /* boot block size */ 192 int sbsize = SBSIZE; /* superblock size */ 193 int mntflags = MNT_ASYNC; /* flags to be passed to mount */ 194 int t_or_u_flag = 0; /* user has specified -t or -u */ 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 mfsdevname[256]; 203 char *progname; 204 205 static void usage(void); 206 static void mfsintr(int signo); 207 208 int 209 main(int argc, char **argv) 210 { 211 int ch; 212 struct disktab geom; /* disk geometry data */ 213 struct stat st; 214 struct statfs *mp; 215 int fsi = -1, fso = -1, len, n, vflag; 216 char *s1, *s2, *special; 217 const char *opstring; 218 #ifdef MFS 219 struct vfsconf vfc; 220 int error; 221 #endif 222 223 bzero(&geom, sizeof(geom)); 224 vflag = 0; 225 if ((progname = strrchr(*argv, '/'))) 226 ++progname; 227 else 228 progname = *argv; 229 230 if (strstr(progname, "mfs")) { 231 mfs = 1; 232 Nflag++; 233 } 234 235 opstring = mfs ? 236 "NCF:T:Ua:b:c:d:e:f:g:h:i:m:o:s:v" : 237 "NOS:T:Ua:b:c:d:e:f:g:h:i:k:l:m:n:o:p:r:s:t:u:vx:"; 238 while ((ch = getopt(argc, argv, opstring)) != -1) { 239 switch (ch) { 240 case 'N': 241 Nflag = 1; 242 break; 243 case 'O': 244 Oflag = 1; 245 break; 246 case 'C': 247 Cflag = 1; /* MFS only */ 248 break; 249 case 'S': 250 if ((sectorsize = atoi(optarg)) <= 0) 251 fatal("%s: bad sector size", optarg); 252 break; 253 #ifdef COMPAT 254 case 'T': 255 disktype = optarg; 256 break; 257 #endif 258 case 'F': 259 filename = optarg; 260 break; 261 case 'U': 262 Uflag = 1; 263 break; 264 case 'a': 265 if ((maxcontig = atoi(optarg)) <= 0) 266 fatal("%s: bad maximum contiguous blocks", 267 optarg); 268 break; 269 case 'b': 270 if ((bsize = atoi(optarg)) < MINBSIZE) 271 fatal("%s: bad block size", optarg); 272 break; 273 case 'c': 274 if ((cpg = atoi(optarg)) <= 0) 275 fatal("%s: bad cylinders/group", optarg); 276 cpgflg++; 277 break; 278 case 'd': 279 if ((rotdelay = atoi(optarg)) < 0) 280 fatal("%s: bad rotational delay", optarg); 281 break; 282 case 'e': 283 if ((maxbpg = atoi(optarg)) <= 0) 284 fatal("%s: bad blocks per file in a cylinder group", 285 optarg); 286 break; 287 case 'f': 288 if ((fsize = atoi(optarg)) <= 0) 289 fatal("%s: bad fragment size", optarg); 290 break; 291 case 'g': 292 if ((avgfilesize = atoi(optarg)) <= 0) 293 fatal("%s: bad average file size", optarg); 294 break; 295 case 'h': 296 if ((avgfilesperdir = atoi(optarg)) <= 0) 297 fatal("%s: bad average files per dir", optarg); 298 break; 299 case 'i': 300 if ((density = atoi(optarg)) <= 0) 301 fatal("%s: bad bytes per inode", optarg); 302 break; 303 case 'k': 304 if ((trackskew = atoi(optarg)) < 0) 305 fatal("%s: bad track skew", optarg); 306 break; 307 case 'l': 308 if ((interleave = atoi(optarg)) <= 0) 309 fatal("%s: bad interleave", optarg); 310 break; 311 case 'm': 312 if ((minfree = atoi(optarg)) < 0 || minfree > 99) 313 fatal("%s: bad free space %%", optarg); 314 break; 315 case 'n': 316 if ((nrpos = atoi(optarg)) < 0) 317 fatal("%s: bad rotational layout count", 318 optarg); 319 if (nrpos == 0) 320 nrpos = 1; 321 break; 322 case 'o': 323 if (mfs) 324 getmntopts(optarg, mopts, &mntflags, 0); 325 else { 326 if (strcmp(optarg, "space") == 0) 327 opt = FS_OPTSPACE; 328 else if (strcmp(optarg, "time") == 0) 329 opt = FS_OPTTIME; 330 else 331 fatal("%s: unknown optimization preference: use `space' or `time'", optarg); 332 } 333 break; 334 case 'p': 335 if ((trackspares = atoi(optarg)) < 0) 336 fatal("%s: bad spare sectors per track", 337 optarg); 338 break; 339 case 'r': 340 if ((rpm = atoi(optarg)) <= 0) 341 fatal("%s: bad revolutions/minute", optarg); 342 break; 343 case 's': 344 /* 345 * Unsigned long but limit to long. On 32 bit a 346 * tad under 2G, on 64 bit the upper bound is more 347 * swap space then operand size. 348 * 349 * NOTE: fssize is converted from 512 byte sectors 350 * to filesystem block-sized sectors by mkfs XXX. 351 */ 352 fssize = strtoul(optarg, NULL, 10); 353 if (fssize == 0 || fssize > LONG_MAX) 354 fatal("%s: bad file system size", optarg); 355 break; 356 case 't': 357 t_or_u_flag++; 358 if ((ntracks = atoi(optarg)) < 0) 359 fatal("%s: bad total tracks", optarg); 360 break; 361 case 'u': 362 t_or_u_flag++; 363 if ((nsectors = atoi(optarg)) < 0) 364 fatal("%s: bad sectors/track", optarg); 365 break; 366 case 'v': 367 vflag = 1; 368 break; 369 case 'x': 370 if ((cylspares = atoi(optarg)) < 0) 371 fatal("%s: bad spare sectors per cylinder", 372 optarg); 373 break; 374 case '?': 375 default: 376 usage(); 377 } 378 } 379 argc -= optind; 380 argv += optind; 381 382 if (argc != 2 && (mfs || argc != 1)) 383 usage(); 384 385 special = argv[0]; 386 /* Copy the NetBSD way of faking up a disk label */ 387 if (mfs && !strcmp(special, "swap")) { 388 /* 389 * it's an MFS, mounted on "swap." fake up a label. 390 * XXX XXX XXX 391 */ 392 fso = -1; /* XXX; normally done below. */ 393 394 geom.d_media_blksize = 512; 395 geom.d_nheads = 16; 396 geom.d_secpertrack = 64; 397 /* geom.d_ncylinders not used */ 398 geom.d_secpercyl = 1024; 399 geom.d_media_blocks = 16384; 400 geom.d_rpm = 3600; 401 geom.d_interleave = 1; 402 403 goto havelabel; 404 } 405 406 /* 407 * If we can't stat the device and the path is relative, try 408 * prepending /dev. 409 */ 410 if (stat(special, &st) < 0 && special[0] && special[0] != '/') 411 asprintf(&special, "/dev/%s", special); 412 413 if (Nflag) { 414 fso = -1; 415 } else { 416 fso = open(special, O_WRONLY); 417 if (fso < 0) 418 fatal("%s: %s", special, strerror(errno)); 419 420 /* Bail if target special is mounted */ 421 n = getmntinfo(&mp, MNT_NOWAIT); 422 if (n == 0) 423 fatal("%s: getmntinfo: %s", special, strerror(errno)); 424 425 len = sizeof(_PATH_DEV) - 1; 426 s1 = special; 427 if (strncmp(_PATH_DEV, s1, len) == 0) 428 s1 += len; 429 430 while (--n >= 0) { 431 s2 = mp->f_mntfromname; 432 if (strncmp(_PATH_DEV, s2, len) == 0) { 433 s2 += len - 1; 434 *s2 = 'r'; 435 } 436 if (strcmp(s1, s2) == 0 || strcmp(s1, &s2[1]) == 0) 437 fatal("%s is mounted on %s", 438 special, mp->f_mntonname); 439 ++mp; 440 } 441 } 442 if (mfs && disktype != NULL) { 443 struct disktab *dt; 444 445 if ((dt = getdisktabbyname(disktype)) == NULL) 446 fatal("%s: unknown disk type", disktype); 447 geom = *dt; 448 } else { 449 struct partinfo pinfo; 450 451 if (special[0] == 0) 452 fatal("null special file name"); 453 fsi = open(special, O_RDONLY); 454 if (fsi < 0) 455 fatal("%s: %s", special, strerror(errno)); 456 if (fstat(fsi, &st) < 0) 457 fatal("%s: %s", special, strerror(errno)); 458 if ((st.st_mode & S_IFMT) != S_IFCHR && !mfs && !vflag) 459 printf("%s: %s: not a character-special device\n", 460 progname, special); 461 #ifdef COMPAT 462 if (!mfs && disktype == NULL) 463 disktype = argv[1]; 464 #endif 465 if (ioctl(fsi, DIOCGPART, &pinfo) < 0) { 466 if (!vflag) { 467 fatal("%s: unable to retrieve geometry " 468 "information", argv[0]); 469 } 470 /* 471 * fake up geometry data 472 */ 473 geom.d_media_blksize = 512; 474 geom.d_nheads = 16; 475 geom.d_secpertrack = 64; 476 geom.d_secpercyl = 1024; 477 geom.d_media_blocks = st.st_size / 478 geom.d_media_blksize; 479 geom.d_media_size = geom.d_media_blocks * 480 geom.d_media_blksize; 481 /* geom.d_ncylinders not used */ 482 } else { 483 /* 484 * extract geometry from pinfo 485 */ 486 geom.d_media_blksize = pinfo.media_blksize; 487 geom.d_nheads = pinfo.d_nheads; 488 geom.d_secpertrack = pinfo.d_secpertrack; 489 geom.d_secpercyl = pinfo.d_secpercyl; 490 /* geom.d_ncylinders not used */ 491 geom.d_media_blocks = pinfo.media_blocks; 492 geom.d_media_size = pinfo.media_size; 493 } 494 if (geom.d_media_blocks == 0 || geom.d_media_size == 0) { 495 fatal("%s: is unavailable", argv[0]); 496 } 497 printf("%s: media size %6.2fMB\n", 498 argv[0], geom.d_media_size / 1024.0 / 1024.0); 499 if (geom.d_media_size / 512 >= 0x80000000ULL) 500 fatal("%s: media size is too large for newfs to handle", 501 argv[0]); 502 } 503 havelabel: 504 if (fssize == 0) 505 fssize = geom.d_media_blocks; 506 if ((u_long)fssize > geom.d_media_blocks && !mfs) { 507 fatal("%s: maximum file system size is %lld blocks", 508 argv[0], geom.d_media_blocks); 509 } 510 if (rpm == 0) { 511 rpm = geom.d_rpm; 512 if (rpm <= 0) 513 rpm = 3600; 514 } 515 if (ntracks == 0) { 516 ntracks = geom.d_nheads; 517 if (ntracks <= 0) 518 fatal("%s: no default #tracks", argv[0]); 519 } 520 if (nsectors == 0) { 521 nsectors = geom.d_secpertrack; 522 if (nsectors <= 0) 523 fatal("%s: no default #sectors/track", argv[0]); 524 } 525 if (sectorsize == 0) { 526 sectorsize = geom.d_media_blksize; 527 if (sectorsize <= 0) 528 fatal("%s: no default sector size", argv[0]); 529 } 530 if (trackskew == -1) { 531 trackskew = geom.d_trackskew; 532 if (trackskew < 0) 533 trackskew = 0; 534 } 535 if (interleave == 0) { 536 interleave = geom.d_interleave; 537 if (interleave <= 0) 538 interleave = 1; 539 } 540 if (fsize == 0) 541 fsize = MAX(DFL_FRAGSIZE, geom.d_media_blksize); 542 if (bsize == 0) 543 bsize = MIN(DFL_BLKSIZE, 8 * fsize); 544 /* 545 * Maxcontig sets the default for the maximum number of blocks 546 * that may be allocated sequentially. With filesystem clustering 547 * it is possible to allocate contiguous blocks up to the maximum 548 * transfer size permitted by the controller or buffering. 549 */ 550 if (maxcontig == 0) 551 maxcontig = MAX(1, MAXPHYS / bsize - 1); 552 if (density == 0) 553 density = NFPI * fsize; 554 if (minfree < MINFREE && opt != FS_OPTSPACE) { 555 fprintf(stderr, "Warning: changing optimization to space "); 556 fprintf(stderr, "because minfree is less than %d%%\n", MINFREE); 557 opt = FS_OPTSPACE; 558 } 559 if (trackspares == -1) 560 trackspares = 0; 561 nphyssectors = nsectors + trackspares; 562 if (cylspares == -1) 563 cylspares = 0; 564 secpercyl = nsectors * ntracks - cylspares; 565 /* 566 * Only complain if -t or -u have been specified; the default 567 * case (4096 sectors per cylinder) is intended to disagree 568 * with the disklabel. 569 */ 570 if (t_or_u_flag && (uint32_t)secpercyl != geom.d_secpercyl) 571 fprintf(stderr, "%s (%d) %s (%u)\n", 572 "Warning: calculated sectors per cylinder", secpercyl, 573 "disagrees with disk label", geom.d_secpercyl); 574 if (maxbpg == 0) 575 maxbpg = MAXBLKPG(bsize); 576 headswitch = geom.d_headswitch; 577 trackseek = geom.d_trkseek; 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 } 588 if (mfs) { 589 mfs_mtpt = argv[1]; 590 if ( 591 stat(mfs_mtpt, &mfs_mtstat) < 0 || 592 !S_ISDIR(mfs_mtstat.st_mode) 593 ) { 594 fatal("mount point not dir: %s", mfs_mtpt); 595 } 596 } 597 mkfs(special, fsi, fso, (Cflag && mfs) ? argv[1] : NULL); 598 599 /* 600 * NOTE: Newfs no longer accesses or attempts to update the 601 * filesystem disklabel. 602 * 603 * NOTE: fssize is converted from 512 byte sectors 604 * to filesystem block-sized sectors by mkfs XXX. 605 */ 606 if (!Nflag) 607 close(fso); 608 close(fsi); 609 #ifdef MFS 610 if (mfs) { 611 struct mfs_args args; 612 613 bzero(&args, sizeof(args)); 614 615 snprintf(mfsdevname, sizeof(mfsdevname), "/dev/mfs%d", 616 getpid()); 617 args.fspec = mfsdevname; 618 args.export.ex_root = -2; 619 if (mntflags & MNT_RDONLY) 620 args.export.ex_flags = MNT_EXRDONLY; 621 else 622 args.export.ex_flags = 0; 623 args.base = membase; 624 args.size = fssize * fsize; 625 626 error = getvfsbyname("mfs", &vfc); 627 if (error && vfsisloadable("mfs")) { 628 if (vfsload("mfs")) 629 fatal("vfsload(mfs)"); 630 endvfsent(); /* flush cache */ 631 error = getvfsbyname("mfs", &vfc); 632 } 633 if (error) 634 fatal("mfs filesystem not available"); 635 636 #if 0 637 int udev; 638 udev = (253 << 8) | (getpid() & 255) | 639 ((getpid() & ~0xFF) << 8); 640 if (mknod(mfsdevname, S_IFCHR | 0700, udev) < 0) 641 printf("Warning: unable to create %s\n", mfsdevname); 642 #endif 643 signal(SIGINT, mfsintr); 644 if (mount(vfc.vfc_name, argv[1], mntflags, &args) < 0) 645 fatal("%s: %s", argv[1], strerror(errno)); 646 signal(SIGINT, SIG_DFL); 647 mfsintr(SIGINT); 648 } 649 #endif 650 exit(0); 651 } 652 653 #ifdef MFS 654 655 static void 656 mfsintr(__unused int signo) 657 { 658 if (filename) 659 munmap(membase, fssize * fsize); 660 #if 0 661 remove(mfsdevname); 662 #endif 663 } 664 665 #endif 666 667 /*VARARGS*/ 668 void 669 fatal(const char *fmt, ...) 670 { 671 va_list ap; 672 673 va_start(ap, fmt); 674 if (fcntl(STDERR_FILENO, F_GETFL) < 0) { 675 openlog(progname, LOG_CONS, LOG_DAEMON); 676 vsyslog(LOG_ERR, fmt, ap); 677 closelog(); 678 } else { 679 vwarnx(fmt, ap); 680 } 681 va_end(ap); 682 exit(1); 683 /*NOTREACHED*/ 684 } 685 686 static void 687 usage(void) 688 { 689 if (mfs) { 690 fprintf(stderr, 691 "usage: %s [ -fsoptions ] special-device mount-point\n", 692 progname); 693 } else 694 fprintf(stderr, 695 "usage: %s [ -fsoptions ] special-device%s\n", 696 progname, 697 #ifdef COMPAT 698 " [device-type]"); 699 #else 700 ""); 701 #endif 702 fprintf(stderr, "where fsoptions are:\n"); 703 fprintf(stderr, "\t-C (mfs) Copy the underlying filesystem to the MFS mount\n"); 704 fprintf(stderr, 705 "\t-N do not create file system, just print out parameters\n"); 706 fprintf(stderr, "\t-O create a 4.3BSD format filesystem\n"); 707 fprintf(stderr, "\t-S sector size\n"); 708 #ifdef COMPAT 709 fprintf(stderr, "\t-T disktype\n"); 710 #endif 711 fprintf(stderr, "\t-U enable soft updates\n"); 712 fprintf(stderr, "\t-a maximum contiguous blocks\n"); 713 fprintf(stderr, "\t-b block size\n"); 714 fprintf(stderr, "\t-c cylinders/group\n"); 715 fprintf(stderr, "\t-d rotational delay between contiguous blocks\n"); 716 fprintf(stderr, "\t-e maximum blocks per file in a cylinder group\n"); 717 fprintf(stderr, "\t-f frag size\n"); 718 fprintf(stderr, "\t-g average file size\n"); 719 fprintf(stderr, "\t-h average files per directory\n"); 720 fprintf(stderr, "\t-i number of bytes per inode\n"); 721 fprintf(stderr, "\t-k sector 0 skew, per track\n"); 722 fprintf(stderr, "\t-l hardware sector interleave\n"); 723 fprintf(stderr, "\t-m minimum free space %%\n"); 724 fprintf(stderr, "\t-n number of distinguished rotational positions\n"); 725 fprintf(stderr, "\t-o optimization preference (`space' or `time')\n"); 726 fprintf(stderr, "\t-p spare sectors per track\n"); 727 fprintf(stderr, "\t-s file system size (sectors)\n"); 728 fprintf(stderr, "\t-r revolutions/minute\n"); 729 fprintf(stderr, "\t-t tracks/cylinder\n"); 730 fprintf(stderr, "\t-u sectors/track\n"); 731 fprintf(stderr, 732 "\t-v do not attempt to determine partition name from device name\n"); 733 fprintf(stderr, "\t-x spare sectors per cylinder\n"); 734 exit(1); 735 } 736