1 /* $OpenBSD: newfs.c,v 1.28 2001/07/07 18:26:16 deraadt Exp $ */ 2 /* $NetBSD: newfs.c,v 1.20 1996/05/16 07:13:03 thorpej Exp $ */ 3 4 /* 5 * Copyright (c) 1983, 1989, 1993, 1994 6 * The Regents of the University of California. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by the University of 19 * California, Berkeley and its contributors. 20 * 4. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 */ 36 37 #ifndef lint 38 static char copyright[] = 39 "@(#) Copyright (c) 1983, 1989, 1993, 1994\n\ 40 The Regents of the University of California. All rights reserved.\n"; 41 #endif /* not lint */ 42 43 #ifndef lint 44 #if 0 45 static char sccsid[] = "@(#)newfs.c 8.8 (Berkeley) 4/18/94"; 46 #else 47 static char rcsid[] = "$OpenBSD: newfs.c,v 1.28 2001/07/07 18:26:16 deraadt Exp $"; 48 #endif 49 #endif /* not lint */ 50 51 /* 52 * newfs: friendly front end to mkfs 53 */ 54 #include <sys/param.h> 55 #include <sys/stat.h> 56 #include <sys/ioctl.h> 57 #include <sys/disklabel.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 <fcntl.h> 67 #include <paths.h> 68 #include <stdio.h> 69 #include <stdlib.h> 70 #include <string.h> 71 #include <syslog.h> 72 #include <unistd.h> 73 #include <util.h> 74 #include <err.h> 75 76 #ifdef __STDC__ 77 #include <stdarg.h> 78 #else 79 #include <varargs.h> 80 #endif 81 82 #include "mntopts.h" 83 #include "pathnames.h" 84 85 struct mntopt mopts[] = { 86 MOPT_STDOPTS, 87 MOPT_ASYNC, 88 MOPT_UPDATE, 89 { NULL }, 90 }; 91 92 void fatal __P((const char *fmt, ...)); 93 void usage __P((void)); 94 void mkfs __P((struct partition *, char *, int, int)); 95 void rewritelabel __P((char *, int, struct disklabel *)); 96 u_short dkcksum __P((struct disklabel *)); 97 98 #define COMPAT /* allow non-labeled disks */ 99 100 /* 101 * The following two constants set the default block and fragment sizes. 102 * Both constants must be a power of 2 and meet the following constraints: 103 * MINBSIZE <= DESBLKSIZE <= MAXBSIZE 104 * sectorsize <= DESFRAGSIZE <= DESBLKSIZE 105 * DESBLKSIZE / DESFRAGSIZE <= 8 106 */ 107 #define DFL_FRAGSIZE 1024 108 #define DFL_BLKSIZE 8192 109 110 /* 111 * Cylinder groups may have up to many cylinders. The actual 112 * number used depends upon how much information can be stored 113 * on a single cylinder. The default is to use 16 cylinders 114 * per group. 115 */ 116 #define DESCPG 16 /* desired fs_cpg */ 117 118 /* 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 0ms. 123 */ 124 #define ROTDELAY 0 125 126 /* 127 * MAXBLKPG determines the maximum number of data blocks which are 128 * placed in a single cylinder group. The default is one indirect 129 * block worth of data blocks. 130 */ 131 #define MAXBLKPG(bsize) ((bsize) / sizeof(daddr_t)) 132 133 /* 134 * Each file system has a number of inodes statically allocated. 135 * We allocate one inode slot per NFPI fragments, expecting this 136 * to be far more than we will ever need. 137 */ 138 #define NFPI 4 139 140 /* 141 * For each cylinder we keep track of the availability of blocks at different 142 * rotational positions, so that we can lay out the data to be picked 143 * up with minimum rotational latency. NRPOS is the default number of 144 * rotational positions that we distinguish. With NRPOS of 8 the resolution 145 * of our summary information is 2ms for a typical 3600 rpm drive. Caching 146 * and zoning pretty much defeats rotational optimization, so we now use a 147 * default of 1. 148 */ 149 #define NRPOS 1 /* number distinct rotational positions */ 150 151 152 int mfs; /* run as the memory based filesystem */ 153 int Nflag; /* run without writing file system */ 154 int Oflag; /* format as an 4.3BSD file system */ 155 int fssize; /* file system size */ 156 int ntracks; /* # tracks/cylinder */ 157 int nsectors; /* # sectors/track */ 158 int nphyssectors; /* # sectors/track including spares */ 159 int secpercyl; /* sectors per cylinder */ 160 int trackspares = -1; /* spare sectors per track */ 161 int cylspares = -1; /* spare sectors per cylinder */ 162 int sectorsize; /* bytes/sector */ 163 int realsectorsize; /* bytes/sector in hardware */ 164 int rpm; /* revolutions/minute of drive */ 165 int interleave; /* hardware sector interleave */ 166 int trackskew = -1; /* sector 0 skew, per track */ 167 int fsize = 0; /* fragment size */ 168 int bsize = 0; /* block size */ 169 int cpg = DESCPG; /* cylinders/cylinder group */ 170 int cpgflg; /* cylinders/cylinder group flag was given */ 171 int minfree = MINFREE; /* free space threshold */ 172 int opt = DEFAULTOPT; /* optimization preference (space or time) */ 173 int reqopt = -1; /* opt preference has not been specified */ 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 avgfilesize = AVFILESIZ;/* expected average file size */ 180 int avgfilesperdir = AFPDIR;/* expected number of files per directory */ 181 int bbsize = BBSIZE; /* boot block size */ 182 int sbsize = SBSIZE; /* superblock size */ 183 int mntflags = MNT_ASYNC; /* flags to be passed to mount */ 184 int quiet = 0; /* quiet flag */ 185 u_long memleft; /* virtual memory available */ 186 caddr_t membase; /* start address of memory based filesystem */ 187 #ifdef COMPAT 188 char *disktype; 189 int unlabeled; 190 #endif 191 192 char device[MAXPATHLEN]; 193 194 extern char *__progname; 195 196 int 197 main(argc, argv) 198 int argc; 199 char *argv[]; 200 { 201 register int ch; 202 register struct partition *pp; 203 register struct disklabel *lp; 204 struct disklabel mfsfakelabel; 205 struct disklabel *getdisklabel(); 206 struct partition oldpartition; 207 struct stat st; 208 struct statfs *mp; 209 int fsi = -1, fso, len, n, maxpartitions; 210 char *cp, *s1, *s2, *special, *opstring, buf[BUFSIZ]; 211 char *fstype = NULL; 212 char **saveargv = argv; 213 int ffs = 1; 214 215 if (strstr(__progname, "mfs")) 216 mfs = Nflag = quiet = 1; 217 218 maxpartitions = getmaxpartitions(); 219 if (maxpartitions > 26) 220 fatal("insane maxpartitions value %d", maxpartitions); 221 222 opstring = mfs ? 223 "NT:a:b:c:d:e:f:i:m:o:s:" : 224 "NOS:T:a:b:c:d:e:f:g:h:i:k:l:m:n:o:p:qr:s:t:u:x:z:"; 225 while ((ch = getopt(argc, argv, opstring)) != -1) { 226 switch (ch) { 227 case 'N': 228 Nflag = 1; 229 break; 230 case 'O': 231 Oflag = 1; 232 break; 233 case 'S': 234 if ((sectorsize = atoi(optarg)) <= 0) 235 fatal("%s: bad sector size", optarg); 236 break; 237 #ifdef COMPAT 238 case 'T': 239 disktype = optarg; 240 break; 241 #endif 242 case 'a': 243 if ((maxcontig = atoi(optarg)) <= 0) 244 fatal("%s: bad maximum contiguous blocks\n", 245 optarg); 246 break; 247 case 'b': 248 if ((bsize = atoi(optarg)) < MINBSIZE) 249 fatal("%s: bad block size", optarg); 250 break; 251 case 'c': 252 if ((cpg = atoi(optarg)) <= 0) 253 fatal("%s: bad cylinders/group", optarg); 254 cpgflg++; 255 break; 256 case 'd': 257 if ((rotdelay = atoi(optarg)) < 0) 258 fatal("%s: bad rotational delay\n", optarg); 259 break; 260 case 'e': 261 if ((maxbpg = atoi(optarg)) <= 0) 262 fatal("%s: bad blocks per file in a cylinder group\n", 263 optarg); 264 break; 265 case 'f': 266 if ((fsize = atoi(optarg)) <= 0) 267 fatal("%s: bad fragment size", optarg); 268 break; 269 case 'g': 270 if ((avgfilesize = atoi(optarg)) <= 0) 271 fatal("%s: bad average file size", optarg); 272 break; 273 case 'h': 274 if ((avgfilesperdir = atoi(optarg)) <= 0) 275 fatal("%s: bad average files per dir", optarg); 276 break; 277 case 'i': 278 if ((density = atoi(optarg)) <= 0) 279 fatal("%s: bad bytes per inode\n", optarg); 280 break; 281 case 'k': 282 if ((trackskew = atoi(optarg)) < 0) 283 fatal("%s: bad track skew", optarg); 284 break; 285 case 'l': 286 if ((interleave = atoi(optarg)) <= 0) 287 fatal("%s: bad interleave", optarg); 288 break; 289 case 'm': 290 if ((minfree = atoi(optarg)) < 0 || minfree > 99) 291 fatal("%s: bad free space %%\n", optarg); 292 break; 293 case 'n': 294 if ((nrpos = atoi(optarg)) <= 0) 295 fatal("%s: bad rotational layout count\n", 296 optarg); 297 break; 298 case 'o': 299 if (mfs) 300 getmntopts(optarg, mopts, &mntflags); 301 else { 302 if (strcmp(optarg, "space") == 0) 303 reqopt = opt = FS_OPTSPACE; 304 else if (strcmp(optarg, "time") == 0) 305 reqopt = opt = FS_OPTTIME; 306 else 307 fatal("%s: unknown optimization preference: use `space' or `time'."); 308 } 309 break; 310 case 'p': 311 if ((trackspares = atoi(optarg)) < 0) 312 fatal("%s: bad spare sectors per track", 313 optarg); 314 break; 315 case 'q': 316 quiet = 1; 317 break; 318 case 'r': 319 if ((rpm = atoi(optarg)) <= 0) 320 fatal("%s: bad revolutions/minute\n", optarg); 321 break; 322 case 's': 323 if ((fssize = atoi(optarg)) <= 0) 324 fatal("%s: bad file system size", optarg); 325 break; 326 case 'z': 327 if ((ntracks = atoi(optarg)) <= 0) 328 fatal("%s: bad total tracks", optarg); 329 break; 330 case 't': 331 fstype = optarg; 332 if (strcmp(fstype, "ffs")) 333 ffs = 0; 334 break; 335 case 'u': 336 if ((nsectors = atoi(optarg)) <= 0) 337 fatal("%s: bad sectors/track", optarg); 338 break; 339 case 'x': 340 if ((cylspares = atoi(optarg)) < 0) 341 fatal("%s: bad spare sectors per cylinder", 342 optarg); 343 break; 344 case '?': 345 default: 346 usage(); 347 } 348 if (!ffs) 349 break; 350 } 351 argc -= optind; 352 argv += optind; 353 354 if (ffs && argc - mfs != 1) 355 usage(); 356 357 special = argv[0]; 358 if (!mfs) { 359 char execname[MAXPATHLEN], name[MAXPATHLEN]; 360 361 if (fstype == NULL) 362 fstype = readlabelfs(special, 0); 363 if (fstype != NULL && strcmp(fstype, "ffs")) { 364 snprintf(name, sizeof name, "newfs_%s", fstype); 365 saveargv[0] = name; 366 snprintf(execname, sizeof execname, "%s/newfs_%s", 367 _PATH_SBIN, fstype); 368 (void)execv(execname, saveargv); 369 snprintf(execname, sizeof execname, "%s/newfs_%s", 370 _PATH_USRSBIN, fstype); 371 (void)execv(execname, saveargv); 372 err(1, "%s not found", name); 373 } 374 } 375 376 if (mfs && !strcmp(special, "swap")) { 377 /* 378 * it's an MFS, mounted on "swap." fake up a label. 379 * XXX XXX XXX 380 */ 381 fso = -1; /* XXX; normally done below. */ 382 383 memset(&mfsfakelabel, 0, sizeof(mfsfakelabel)); 384 mfsfakelabel.d_secsize = 512; 385 mfsfakelabel.d_nsectors = 64; 386 mfsfakelabel.d_ntracks = 16; 387 mfsfakelabel.d_ncylinders = 16; 388 mfsfakelabel.d_secpercyl = 1024; 389 mfsfakelabel.d_secperunit = 16384; 390 mfsfakelabel.d_rpm = 3600; 391 mfsfakelabel.d_interleave = 1; 392 mfsfakelabel.d_npartitions = 1; 393 mfsfakelabel.d_partitions[0].p_size = 16384; 394 mfsfakelabel.d_partitions[0].p_fsize = 1024; 395 mfsfakelabel.d_partitions[0].p_frag = 8; 396 mfsfakelabel.d_partitions[0].p_cpg = 16; 397 398 lp = &mfsfakelabel; 399 pp = &mfsfakelabel.d_partitions[0]; 400 401 goto havelabel; 402 } 403 cp = strrchr(special, '/'); 404 if (cp == NULL) { 405 /* 406 * No path prefix; try /dev/r%s then /dev/%s. 407 */ 408 (void)snprintf(device, sizeof(device), "%sr%s", 409 _PATH_DEV, special); 410 if (stat(device, &st) == -1) 411 (void)snprintf(device, sizeof(device), "%s%s", 412 _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 #ifdef COMPAT 445 if (mfs && disktype != NULL) { 446 lp = (struct disklabel *)getdiskbyname(disktype); 447 if (lp == NULL) 448 fatal("%s: unknown disk type", disktype); 449 pp = &lp->d_partitions[1]; 450 } else 451 #endif 452 { 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 (!S_ISCHR(st.st_mode) && !mfs) 459 printf("%s: %s: not a character-special device\n", 460 __progname, special); 461 cp = strchr(argv[0], '\0') - 1; 462 if (cp == 0 || ((*cp < 'a' || *cp > ('a' + maxpartitions - 1)) 463 && !isdigit(*cp))) 464 fatal("%s: can't figure out file system partition", 465 argv[0]); 466 lp = getdisklabel(special, fsi); 467 if (isdigit(*cp)) 468 pp = &lp->d_partitions[0]; 469 else 470 pp = &lp->d_partitions[*cp - 'a']; 471 if (pp->p_size == 0) 472 fatal("%s: `%c' partition is unavailable", 473 argv[0], *cp); 474 if (pp->p_fstype == FS_BOOT) 475 fatal("%s: `%c' partition overlaps boot program", 476 argv[0], *cp); 477 } 478 havelabel: 479 if (fssize == 0) 480 fssize = pp->p_size; 481 if (fssize > pp->p_size && !mfs) 482 fatal("%s: maximum file system size on the `%c' partition is %d", 483 argv[0], *cp, pp->p_size); 484 if (rpm == 0) { 485 rpm = lp->d_rpm; 486 if (rpm <= 0) 487 rpm = 3600; 488 } 489 if (ntracks == 0) { 490 ntracks = lp->d_ntracks; 491 if (ntracks <= 0) 492 fatal("%s: no default #tracks", argv[0]); 493 } 494 if (nsectors == 0) { 495 nsectors = lp->d_nsectors; 496 if (nsectors <= 0) 497 fatal("%s: no default #sectors/track", argv[0]); 498 } 499 if (sectorsize == 0) { 500 sectorsize = lp->d_secsize; 501 if (sectorsize <= 0) 502 fatal("%s: no default sector size", argv[0]); 503 } 504 if (trackskew == -1) { 505 trackskew = lp->d_trackskew; 506 if (trackskew < 0) 507 trackskew = 0; 508 } 509 if (interleave == 0) { 510 interleave = lp->d_interleave; 511 if (interleave <= 0) 512 interleave = 1; 513 } 514 if (fsize == 0) { 515 fsize = pp->p_fsize; 516 if (fsize <= 0) 517 fsize = MAX(DFL_FRAGSIZE, lp->d_secsize); 518 } 519 if (bsize == 0) { 520 bsize = pp->p_frag * pp->p_fsize; 521 if (bsize <= 0) 522 bsize = MIN(DFL_BLKSIZE, 8 * fsize); 523 } 524 /* 525 * Maxcontig sets the default for the maximum number of blocks 526 * that may be allocated sequentially. With filesystem clustering 527 * it is possible to allocate contiguous blocks up to the maximum 528 * transfer size permitted by the controller or buffering. 529 */ 530 if (maxcontig == 0) 531 maxcontig = MAX(1, MIN(MAXPHYS, MAXBSIZE) / bsize - 1); 532 if (density == 0) 533 density = NFPI * fsize; 534 if (minfree < MINFREE && opt != FS_OPTSPACE && reqopt == -1) { 535 fprintf(stderr, "Warning: changing optimization to space "); 536 fprintf(stderr, "because minfree is less than %d%%\n", MINFREE); 537 opt = FS_OPTSPACE; 538 } 539 if (trackspares == -1) { 540 trackspares = lp->d_sparespertrack; 541 if (trackspares < 0) 542 trackspares = 0; 543 } 544 nphyssectors = nsectors + trackspares; 545 if (cylspares == -1) { 546 cylspares = lp->d_sparespercyl; 547 if (cylspares < 0) 548 cylspares = 0; 549 } 550 secpercyl = nsectors * ntracks - cylspares; 551 if (secpercyl != lp->d_secpercyl) 552 fprintf(stderr, "%s (%d) %s (%lu)\n", 553 "Warning: calculated sectors per cylinder", secpercyl, 554 "disagrees with disk label", 555 (unsigned long)lp->d_secpercyl); 556 if (maxbpg == 0) 557 maxbpg = MAXBLKPG(bsize); 558 #ifdef notdef /* label may be 0 if faked up by kernel */ 559 bbsize = lp->d_bbsize; 560 sbsize = lp->d_sbsize; 561 #endif 562 oldpartition = *pp; 563 realsectorsize = sectorsize; 564 if (sectorsize < DEV_BSIZE) { 565 int secperblk = DEV_BSIZE / sectorsize; 566 567 sectorsize = DEV_BSIZE; 568 nsectors /= secperblk; 569 nphyssectors /= secperblk; 570 secpercyl /= secperblk; 571 fssize /= secperblk; 572 pp->p_size /= secperblk; 573 } else if (sectorsize > DEV_BSIZE) { 574 int blkpersec = sectorsize / DEV_BSIZE; 575 576 sectorsize = DEV_BSIZE; 577 nsectors *= blkpersec; 578 nphyssectors *= blkpersec; 579 secpercyl *= blkpersec; 580 fssize *= blkpersec; 581 pp->p_size *= blkpersec; 582 } 583 mkfs(pp, special, fsi, fso); 584 if (realsectorsize < DEV_BSIZE) 585 pp->p_size *= DEV_BSIZE / realsectorsize; 586 else if (realsectorsize > DEV_BSIZE) 587 pp->p_size /= realsectorsize / DEV_BSIZE; 588 if (!Nflag && memcmp(pp, &oldpartition, sizeof(oldpartition))) 589 rewritelabel(special, fso, lp); 590 if (!Nflag) 591 close(fso); 592 close(fsi); 593 #ifdef MFS 594 if (mfs) { 595 struct mfs_args args; 596 597 sprintf(buf, "mfs:%d", getpid()); 598 args.fspec = buf; 599 args.export.ex_root = -2; 600 if (mntflags & MNT_RDONLY) 601 args.export.ex_flags = MNT_EXRDONLY; 602 else 603 args.export.ex_flags = 0; 604 args.base = membase; 605 args.size = fssize * sectorsize; 606 if (mount(MOUNT_MFS, argv[1], mntflags, &args) < 0) 607 fatal("%s: %s", argv[1], strerror(errno)); 608 } 609 #endif 610 exit(0); 611 } 612 613 #ifdef COMPAT 614 char lmsg[] = "%s: can't read disk label; disk type must be specified"; 615 #else 616 char lmsg[] = "%s: can't read disk label"; 617 #endif 618 619 struct disklabel * 620 getdisklabel(s, fd) 621 char *s; 622 int fd; 623 { 624 static struct disklabel lab; 625 626 if (ioctl(fd, DIOCGDINFO, (char *)&lab) < 0) { 627 #ifdef COMPAT 628 if (disktype) { 629 struct disklabel *lp, *getdiskbyname(); 630 631 unlabeled++; 632 lp = getdiskbyname(disktype); 633 if (lp == NULL) 634 fatal("%s: unknown disk type", disktype); 635 return (lp); 636 } 637 #endif 638 warn("ioctl (GDINFO)"); 639 fatal(lmsg, s); 640 } 641 return (&lab); 642 } 643 644 void 645 rewritelabel(s, fd, lp) 646 char *s; 647 int fd; 648 register struct disklabel *lp; 649 { 650 #ifdef COMPAT 651 if (unlabeled) 652 return; 653 #endif 654 lp->d_checksum = 0; 655 lp->d_checksum = dkcksum(lp); 656 if (ioctl(fd, DIOCWDINFO, (char *)lp) < 0) { 657 warn("ioctl (WDINFO)"); 658 fatal("%s: can't rewrite disk label", s); 659 } 660 #ifdef __vax__ 661 if (lp->d_type == DTYPE_SMD && lp->d_flags & D_BADSECT) { 662 register i; 663 int cfd; 664 daddr_t alt; 665 char specname[64]; 666 char blk[1024]; 667 char *cp; 668 669 /* 670 * Make name for 'c' partition. 671 */ 672 strncpy(specname, s, sizeof(specname) - 1); 673 specname[sizeof(specname) - 1] = '\0'; 674 cp = specname + strlen(specname) - 1; 675 if (!isdigit(*cp)) 676 *cp = 'c'; 677 cfd = open(specname, O_WRONLY); 678 if (cfd < 0) 679 fatal("%s: %s", specname, strerror(errno)); 680 memset(blk, 0, sizeof(blk)); 681 *(struct disklabel *)(blk + LABELOFFSET) = *lp; 682 alt = lp->d_ncylinders * lp->d_secpercyl - lp->d_nsectors; 683 for (i = 1; i < 11 && i < lp->d_nsectors; i += 2) { 684 off_t offset; 685 686 offset = alt + i; 687 offset *= lp->d_secsize; 688 if (lseek(cfd, offset, SEEK_SET) == -1) 689 fatal("lseek to badsector area: %s", 690 strerror(errno)); 691 if (write(cfd, blk, lp->d_secsize) < lp->d_secsize) 692 warn("alternate label %d write", i/2); 693 } 694 close(cfd); 695 } 696 #endif /*__vax__*/ 697 } 698 699 /*VARARGS*/ 700 void 701 #ifdef __STDC__ 702 fatal(const char *fmt, ...) 703 #else 704 fatal(fmt, va_alist) 705 char *fmt; 706 va_dcl 707 #endif 708 { 709 va_list ap; 710 711 #ifdef __STDC__ 712 va_start(ap, fmt); 713 #else 714 va_start(ap); 715 #endif 716 if (fcntl(STDERR_FILENO, F_GETFL) < 0) { 717 openlog(__progname, LOG_CONS, LOG_DAEMON); 718 vsyslog(LOG_ERR, fmt, ap); 719 closelog(); 720 } else { 721 vwarnx(fmt, ap); 722 } 723 va_end(ap); 724 exit(1); 725 /*NOTREACHED*/ 726 } 727 728 struct fsoptions { 729 char *str; 730 int mfs_too; 731 } fsopts[] = { 732 { "-N do not create file system, just print out parameters", 1 }, 733 { "-O create a 4.3BSD format filesystem", 0 }, 734 { "-S sector size", 0 }, 735 #ifdef COMPAT 736 { "-T disktype", 0 }, 737 #endif 738 { "-a maximum contiguous blocks", 1 }, 739 { "-b block size", 1 }, 740 { "-c cylinders/group", 1 }, 741 { "-d rotational delay between contiguous blocks", 1 }, 742 { "-e maximum blocks per file in a cylinder group", 1 }, 743 { "-f frag size", 1 }, 744 { "-g average file size", 0 }, 745 { "-h average files per directory", 0 }, 746 { "-i number of bytes per inode", 1 }, 747 { "-k sector 0 skew, per track", 0 }, 748 { "-l hardware sector interleave", 0 }, 749 { "-m minimum free space %%", 1 }, 750 { "-n number of distinguished rotational positions", 0 }, 751 { "-o optimization preference (`space' or `time')", 1 }, 752 { "-p spare sectors per track", 0 }, 753 { "-r revolutions/minute", 0 }, 754 { "-s file system size (sectors)", 1 }, 755 { "-t file system type", 0 }, 756 { "-u sectors/track", 0 }, 757 { "-x spare sectors per cylinder", 0 }, 758 { "-z tracks/cylinder", 0 }, 759 { NULL, NULL } 760 }; 761 762 void 763 usage() 764 { 765 struct fsoptions *fsopt; 766 767 if (mfs) { 768 fprintf(stderr, 769 "usage: %s [ -fsoptions ] special-device mount-point\n", 770 __progname); 771 } else { 772 fprintf(stderr, 773 "usage: %s [ -fsoptions ] special-device\n", __progname); 774 } 775 fprintf(stderr, "where fsoptions are:\n"); 776 for (fsopt = fsopts; fsopt->str; fsopt++) { 777 if (!mfs || fsopt->mfs_too) 778 fprintf(stderr, "\t%s\n", fsopt->str); 779 } 780 exit(1); 781 } 782