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 35 static 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 42 static char sccsid[] = "@(#)newfs.c 8.13 (Berkeley) 5/1/95"; 43 #endif 44 static const char rcsid[] = 45 "$FreeBSD$"; 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 85 struct mntopt mopts[] = { 86 MOPT_STDOPTS, 87 MOPT_ASYNC, 88 { NULL }, 89 }; 90 91 #if __STDC__ 92 void fatal(const char *fmt, ...); 93 #else 94 void 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 */ 169 170 int mfs; /* run as the memory based filesystem */ 171 char *mfs_mtpt; /* mount point for mfs */ 172 struct stat mfs_mtstat; /* stat prior to mount */ 173 int Nflag; /* run without writing file system */ 174 int Oflag; /* format as an 4.3BSD file system */ 175 int fssize; /* file system size */ 176 int ntracks = NTRACKS; /* # tracks/cylinder */ 177 int nsectors = NSECTORS; /* # sectors/track */ 178 int nphyssectors; /* # sectors/track including spares */ 179 int secpercyl; /* sectors per cylinder */ 180 int trackspares = -1; /* spare sectors per track */ 181 int cylspares = -1; /* spare sectors per cylinder */ 182 int sectorsize; /* bytes/sector */ 183 int realsectorsize; /* bytes/sector in hardware */ 184 int rpm; /* revolutions/minute of drive */ 185 int interleave; /* hardware sector interleave */ 186 int trackskew = -1; /* sector 0 skew, per track */ 187 int headswitch; /* head switch time, usec */ 188 int trackseek; /* track-to-track seek, usec */ 189 int fsize = 0; /* fragment size */ 190 int bsize = 0; /* block size */ 191 int cpg = DESCPG; /* cylinders/cylinder group */ 192 int cpgflg; /* cylinders/cylinder group flag was given */ 193 int minfree = MINFREE; /* free space threshold */ 194 int opt = DEFAULTOPT; /* optimization preference (space or time) */ 195 int density; /* number of bytes per inode */ 196 int maxcontig = 0; /* max contiguous blocks to allocate */ 197 int rotdelay = ROTDELAY; /* rotational delay between blocks */ 198 int maxbpg; /* maximum blocks per file in a cyl group */ 199 int nrpos = NRPOS; /* # of distinguished rotational positions */ 200 int bbsize = BBSIZE; /* boot block size */ 201 int sbsize = SBSIZE; /* superblock size */ 202 int mntflags = MNT_ASYNC; /* flags to be passed to mount */ 203 int t_or_u_flag = 0; /* user has specified -t or -u */ 204 u_long memleft; /* virtual memory available */ 205 caddr_t membase; /* start address of memory based filesystem */ 206 char *filename; 207 #ifdef COMPAT 208 char *disktype; 209 int unlabeled; 210 #endif 211 212 char device[MAXPATHLEN]; 213 char *progname; 214 215 extern void mkfs __P((struct partition *, char *, int, int)); 216 static void usage __P((void)); 217 218 int 219 main(argc, argv) 220 int argc; 221 char *argv[]; 222 { 223 register int ch; 224 register struct partition *pp; 225 register struct disklabel *lp; 226 struct disklabel mfsfakelabel; 227 struct disklabel *getdisklabel(); 228 struct partition oldpartition; 229 struct stat st; 230 struct statfs *mp; 231 int fsi, fso, len, n, vflag; 232 char *cp, *s1, *s2, *special, *opstring; 233 #ifdef MFS 234 struct vfsconf vfc; 235 int error; 236 char buf[BUFSIZ]; 237 #endif 238 239 vflag = 0; 240 if ((progname = strrchr(*argv, '/'))) 241 ++progname; 242 else 243 progname = *argv; 244 245 if (strstr(progname, "mfs")) { 246 mfs = 1; 247 Nflag++; 248 fprintf(stderr, 249 "WARNING: MFS is being phased out in preference for md devices\n" 250 "WARNING: Please see mdconfig(8) for details\n" 251 "WARNING: Continuing in 15 seconds\n"); 252 sleep(15); 253 254 } 255 256 opstring = mfs ? 257 "NF:T:a:b:c:d:e:f:i:m:o:s:" : 258 "NOS:T:a:b:c:d:e:f:i:k:l:m:n:o:p:r:s:t:u:vx:"; 259 while ((ch = getopt(argc, argv, opstring)) != -1) 260 switch (ch) { 261 case 'N': 262 Nflag = 1; 263 break; 264 case 'O': 265 Oflag = 1; 266 break; 267 case 'S': 268 if ((sectorsize = atoi(optarg)) <= 0) 269 fatal("%s: bad sector size", optarg); 270 break; 271 #ifdef COMPAT 272 case 'T': 273 disktype = optarg; 274 break; 275 #endif 276 case 'F': 277 filename = optarg; 278 break; 279 case 'a': 280 if ((maxcontig = atoi(optarg)) <= 0) 281 fatal("%s: bad maximum contiguous blocks", 282 optarg); 283 break; 284 case 'b': 285 if ((bsize = atoi(optarg)) < MINBSIZE) 286 fatal("%s: bad block size", optarg); 287 break; 288 case 'c': 289 if ((cpg = atoi(optarg)) <= 0) 290 fatal("%s: bad cylinders/group", optarg); 291 cpgflg++; 292 break; 293 case 'd': 294 if ((rotdelay = atoi(optarg)) < 0) 295 fatal("%s: bad rotational delay", optarg); 296 break; 297 case 'e': 298 if ((maxbpg = atoi(optarg)) <= 0) 299 fatal("%s: bad blocks per file in a cylinder group", 300 optarg); 301 break; 302 case 'f': 303 if ((fsize = atoi(optarg)) <= 0) 304 fatal("%s: bad fragment size", optarg); 305 break; 306 case 'i': 307 if ((density = atoi(optarg)) <= 0) 308 fatal("%s: bad bytes per inode", optarg); 309 break; 310 case 'k': 311 if ((trackskew = atoi(optarg)) < 0) 312 fatal("%s: bad track skew", optarg); 313 break; 314 case 'l': 315 if ((interleave = atoi(optarg)) <= 0) 316 fatal("%s: bad interleave", optarg); 317 break; 318 case 'm': 319 if ((minfree = atoi(optarg)) < 0 || minfree > 99) 320 fatal("%s: bad free space %%", optarg); 321 break; 322 case 'n': 323 if ((nrpos = atoi(optarg)) < 0) 324 fatal("%s: bad rotational layout count", 325 optarg); 326 if (nrpos == 0) 327 nrpos = 1; 328 break; 329 case 'o': 330 if (mfs) 331 getmntopts(optarg, mopts, &mntflags, 0); 332 else { 333 if (strcmp(optarg, "space") == 0) 334 opt = FS_OPTSPACE; 335 else if (strcmp(optarg, "time") == 0) 336 opt = FS_OPTTIME; 337 else 338 fatal("%s: unknown optimization preference: use `space' or `time'"); 339 } 340 break; 341 case 'p': 342 if ((trackspares = atoi(optarg)) < 0) 343 fatal("%s: bad spare sectors per track", 344 optarg); 345 break; 346 case 'r': 347 if ((rpm = atoi(optarg)) <= 0) 348 fatal("%s: bad revolutions/minute", optarg); 349 break; 350 case 's': 351 if ((fssize = atoi(optarg)) <= 0) 352 fatal("%s: bad file system size", optarg); 353 break; 354 case 't': 355 t_or_u_flag++; 356 if ((ntracks = atoi(optarg)) < 0) 357 fatal("%s: bad total tracks", optarg); 358 break; 359 case 'u': 360 t_or_u_flag++; 361 if ((nsectors = atoi(optarg)) < 0) 362 fatal("%s: bad sectors/track", optarg); 363 break; 364 case 'v': 365 vflag = 1; 366 break; 367 case 'x': 368 if ((cylspares = atoi(optarg)) < 0) 369 fatal("%s: bad spare sectors per cylinder", 370 optarg); 371 break; 372 case '?': 373 default: 374 usage(); 375 } 376 argc -= optind; 377 argv += optind; 378 379 if (argc != 2 && (mfs || argc != 1)) 380 usage(); 381 382 special = argv[0]; 383 /* Copy the NetBSD way of faking up a disk label */ 384 if (mfs && !strcmp(special, "swap")) { 385 /* 386 * it's an MFS, mounted on "swap." fake up a label. 387 * XXX XXX XXX 388 */ 389 fso = -1; /* XXX; normally done below. */ 390 391 memset(&mfsfakelabel, 0, sizeof(mfsfakelabel)); 392 mfsfakelabel.d_secsize = 512; 393 mfsfakelabel.d_nsectors = 64; 394 mfsfakelabel.d_ntracks = 16; 395 mfsfakelabel.d_ncylinders = 16; 396 mfsfakelabel.d_secpercyl = 1024; 397 mfsfakelabel.d_secperunit = 16384; 398 mfsfakelabel.d_rpm = 3600; 399 mfsfakelabel.d_interleave = 1; 400 mfsfakelabel.d_npartitions = 1; 401 mfsfakelabel.d_partitions[0].p_size = 16384; 402 mfsfakelabel.d_partitions[0].p_fsize = 1024; 403 mfsfakelabel.d_partitions[0].p_frag = 8; 404 mfsfakelabel.d_partitions[0].p_cpg = 16; 405 406 lp = &mfsfakelabel; 407 pp = &mfsfakelabel.d_partitions[0]; 408 409 goto havelabel; 410 } 411 412 cp = strrchr(special, '/'); 413 if (cp == 0) { 414 /* 415 * No path prefix; try /dev/%s. 416 */ 417 (void)sprintf(device, "%s%s", _PATH_DEV, special); 418 special = device; 419 } 420 if (Nflag) { 421 fso = -1; 422 } else { 423 fso = open(special, O_WRONLY); 424 if (fso < 0) 425 fatal("%s: %s", special, strerror(errno)); 426 427 /* Bail if target special is mounted */ 428 n = getmntinfo(&mp, MNT_NOWAIT); 429 if (n == 0) 430 fatal("%s: getmntinfo: %s", special, strerror(errno)); 431 432 len = sizeof(_PATH_DEV) - 1; 433 s1 = special; 434 if (strncmp(_PATH_DEV, s1, len) == 0) 435 s1 += len; 436 437 while (--n >= 0) { 438 s2 = mp->f_mntfromname; 439 if (strncmp(_PATH_DEV, s2, len) == 0) { 440 s2 += len - 1; 441 *s2 = 'r'; 442 } 443 if (strcmp(s1, s2) == 0 || strcmp(s1, &s2[1]) == 0) 444 fatal("%s is mounted on %s", 445 special, mp->f_mntonname); 446 ++mp; 447 } 448 } 449 if (mfs && disktype != NULL) { 450 lp = (struct disklabel *)getdiskbyname(disktype); 451 if (lp == NULL) 452 fatal("%s: unknown disk type", disktype); 453 pp = &lp->d_partitions[1]; 454 } else { 455 fsi = open(special, O_RDONLY); 456 if (fsi < 0) 457 fatal("%s: %s", special, strerror(errno)); 458 if (fstat(fsi, &st) < 0) 459 fatal("%s: %s", special, strerror(errno)); 460 if ((st.st_mode & S_IFMT) != S_IFCHR && !mfs) 461 printf("%s: %s: not a character-special device\n", 462 progname, special); 463 cp = strchr(argv[0], '\0'); 464 if (cp == argv[0]) 465 fatal("null special file name"); 466 cp--; 467 if (!vflag && (*cp < 'a' || *cp > 'h') && !isdigit(*cp)) 468 fatal("%s: can't figure out file system partition", 469 argv[0]); 470 #ifdef COMPAT 471 if (!mfs && disktype == NULL) 472 disktype = argv[1]; 473 #endif 474 lp = getdisklabel(special, fsi); 475 if (vflag || isdigit(*cp)) 476 pp = &lp->d_partitions[0]; 477 else 478 pp = &lp->d_partitions[*cp - 'a']; 479 if (pp->p_size == 0) 480 fatal("%s: `%c' partition is unavailable", 481 argv[0], *cp); 482 if (pp->p_fstype == FS_BOOT) 483 fatal("%s: `%c' partition overlaps boot program", 484 argv[0], *cp); 485 } 486 havelabel: 487 if (fssize == 0) 488 fssize = pp->p_size; 489 if (fssize > pp->p_size && !mfs) 490 fatal("%s: maximum file system size on the `%c' partition is %d", 491 argv[0], *cp, pp->p_size); 492 if (rpm == 0) { 493 rpm = lp->d_rpm; 494 if (rpm <= 0) 495 rpm = 3600; 496 } 497 if (ntracks == 0) { 498 ntracks = lp->d_ntracks; 499 if (ntracks <= 0) 500 fatal("%s: no default #tracks", argv[0]); 501 } 502 if (nsectors == 0) { 503 nsectors = lp->d_nsectors; 504 if (nsectors <= 0) 505 fatal("%s: no default #sectors/track", argv[0]); 506 } 507 if (sectorsize == 0) { 508 sectorsize = lp->d_secsize; 509 if (sectorsize <= 0) 510 fatal("%s: no default sector size", argv[0]); 511 } 512 if (trackskew == -1) { 513 trackskew = lp->d_trackskew; 514 if (trackskew < 0) 515 trackskew = 0; 516 } 517 if (interleave == 0) { 518 interleave = lp->d_interleave; 519 if (interleave <= 0) 520 interleave = 1; 521 } 522 if (fsize == 0) { 523 fsize = pp->p_fsize; 524 if (fsize <= 0) 525 fsize = MAX(DFL_FRAGSIZE, lp->d_secsize); 526 } 527 if (bsize == 0) { 528 bsize = pp->p_frag * pp->p_fsize; 529 if (bsize <= 0) 530 bsize = MIN(DFL_BLKSIZE, 8 * fsize); 531 } 532 /* 533 * Maxcontig sets the default for the maximum number of blocks 534 * that may be allocated sequentially. With filesystem clustering 535 * it is possible to allocate contiguous blocks up to the maximum 536 * transfer size permitted by the controller or buffering. 537 */ 538 if (maxcontig == 0) 539 maxcontig = MAX(1, MAXPHYS / bsize - 1); 540 if (density == 0) 541 density = NFPI * fsize; 542 if (minfree < MINFREE && opt != FS_OPTSPACE) { 543 fprintf(stderr, "Warning: changing optimization to space "); 544 fprintf(stderr, "because minfree is less than %d%%\n", MINFREE); 545 opt = FS_OPTSPACE; 546 } 547 if (trackspares == -1) { 548 trackspares = lp->d_sparespertrack; 549 if (trackspares < 0) 550 trackspares = 0; 551 } 552 nphyssectors = nsectors + trackspares; 553 if (cylspares == -1) { 554 cylspares = lp->d_sparespercyl; 555 if (cylspares < 0) 556 cylspares = 0; 557 } 558 secpercyl = nsectors * ntracks - cylspares; 559 /* 560 * Only complain if -t or -u have been specified; the default 561 * case (4096 sectors per cylinder) is intended to disagree 562 * with the disklabel. 563 */ 564 if (t_or_u_flag && secpercyl != lp->d_secpercyl) 565 fprintf(stderr, "%s (%d) %s (%lu)\n", 566 "Warning: calculated sectors per cylinder", secpercyl, 567 "disagrees with disk label", (u_long)lp->d_secpercyl); 568 if (maxbpg == 0) 569 maxbpg = MAXBLKPG(bsize); 570 headswitch = lp->d_headswitch; 571 trackseek = lp->d_trkseek; 572 #ifdef notdef /* label may be 0 if faked up by kernel */ 573 bbsize = lp->d_bbsize; 574 sbsize = lp->d_sbsize; 575 #endif 576 oldpartition = *pp; 577 #ifdef tahoe 578 realsectorsize = sectorsize; 579 if (sectorsize != DEV_BSIZE) { /* XXX */ 580 int secperblk = DEV_BSIZE / sectorsize; 581 582 sectorsize = DEV_BSIZE; 583 nsectors /= secperblk; 584 nphyssectors /= secperblk; 585 secpercyl /= secperblk; 586 fssize /= secperblk; 587 pp->p_size /= secperblk; 588 } 589 #else 590 realsectorsize = sectorsize; 591 if (sectorsize != DEV_BSIZE) { /* XXX */ 592 int secperblk = sectorsize / DEV_BSIZE; 593 594 sectorsize = DEV_BSIZE; 595 nsectors *= secperblk; 596 nphyssectors *= secperblk; 597 secpercyl *= secperblk; 598 fssize *= secperblk; 599 pp->p_size *= secperblk; 600 } 601 #endif 602 if (mfs) { 603 mfs_mtpt = argv[1]; 604 if ( 605 stat(mfs_mtpt, &mfs_mtstat) < 0 || 606 !S_ISDIR(mfs_mtstat.st_mode) 607 ) { 608 fatal("mount point not dir: %s", mfs_mtpt); 609 } 610 } 611 mkfs(pp, special, fsi, fso); 612 #ifdef tahoe 613 if (realsectorsize != DEV_BSIZE) 614 pp->p_size *= DEV_BSIZE / realsectorsize; 615 #else 616 if (realsectorsize != DEV_BSIZE) 617 pp->p_size /= realsectorsize /DEV_BSIZE; 618 #endif 619 if (!Nflag && bcmp(pp, &oldpartition, sizeof(oldpartition))) 620 rewritelabel(special, fso, lp); 621 if (!Nflag) 622 close(fso); 623 close(fsi); 624 #ifdef MFS 625 if (mfs) { 626 struct mfs_args args; 627 628 sprintf(buf, "mfs:%d", getpid()); 629 args.fspec = buf; 630 args.export.ex_root = -2; 631 if (mntflags & MNT_RDONLY) 632 args.export.ex_flags = MNT_EXRDONLY; 633 else 634 args.export.ex_flags = 0; 635 args.base = membase; 636 args.size = fssize * sectorsize; 637 638 error = getvfsbyname("mfs", &vfc); 639 if (error && vfsisloadable("mfs")) { 640 if (vfsload("mfs")) 641 fatal("vfsload(mfs)"); 642 endvfsent(); /* flush cache */ 643 error = getvfsbyname("mfs", &vfc); 644 } 645 if (error) 646 fatal("mfs filesystem not available"); 647 648 if (mount(vfc.vfc_name, argv[1], mntflags, &args) < 0) 649 fatal("%s: %s", argv[1], strerror(errno)); 650 if(filename) { 651 munmap(membase,fssize * sectorsize); 652 } 653 } 654 #endif 655 exit(0); 656 } 657 658 #ifdef COMPAT 659 char lmsg[] = "%s: can't read disk label; disk type must be specified"; 660 #else 661 char lmsg[] = "%s: can't read disk label"; 662 #endif 663 664 struct disklabel * 665 getdisklabel(s, fd) 666 char *s; 667 int fd; 668 { 669 static struct disklabel lab; 670 671 if (ioctl(fd, DIOCGDINFO, (char *)&lab) < 0) { 672 #ifdef COMPAT 673 if (disktype) { 674 struct disklabel *lp, *getdiskbyname(); 675 676 unlabeled++; 677 lp = getdiskbyname(disktype); 678 if (lp == NULL) 679 fatal("%s: unknown disk type", disktype); 680 return (lp); 681 } 682 #endif 683 warn("ioctl (GDINFO)"); 684 fatal(lmsg, s); 685 } 686 return (&lab); 687 } 688 689 rewritelabel(s, fd, lp) 690 char *s; 691 int fd; 692 register struct disklabel *lp; 693 { 694 #ifdef COMPAT 695 if (unlabeled) 696 return; 697 #endif 698 lp->d_checksum = 0; 699 lp->d_checksum = dkcksum(lp); 700 if (ioctl(fd, DIOCWDINFO, (char *)lp) < 0) { 701 warn("ioctl (WDINFO)"); 702 fatal("%s: can't rewrite disk label", s); 703 } 704 } 705 706 /*VARARGS*/ 707 void 708 #if __STDC__ 709 fatal(const char *fmt, ...) 710 #else 711 fatal(fmt, va_alist) 712 char *fmt; 713 va_dcl 714 #endif 715 { 716 va_list ap; 717 718 #if __STDC__ 719 va_start(ap, fmt); 720 #else 721 va_start(ap); 722 #endif 723 if (fcntl(STDERR_FILENO, F_GETFL) < 0) { 724 openlog(progname, LOG_CONS, LOG_DAEMON); 725 vsyslog(LOG_ERR, fmt, ap); 726 closelog(); 727 } else { 728 vwarnx(fmt, ap); 729 } 730 va_end(ap); 731 exit(1); 732 /*NOTREACHED*/ 733 } 734 735 static void 736 usage() 737 { 738 if (mfs) { 739 fprintf(stderr, 740 "usage: %s [ -fsoptions ] special-device mount-point\n", 741 progname); 742 } else 743 fprintf(stderr, 744 "usage: %s [ -fsoptions ] special-device%s\n", 745 progname, 746 #ifdef COMPAT 747 " [device-type]"); 748 #else 749 ""); 750 #endif 751 fprintf(stderr, "where fsoptions are:\n"); 752 fprintf(stderr, 753 "\t-N do not create file system, just print out parameters\n"); 754 fprintf(stderr, "\t-O create a 4.3BSD format filesystem\n"); 755 fprintf(stderr, "\t-S sector size\n"); 756 #ifdef COMPAT 757 fprintf(stderr, "\t-T disktype\n"); 758 #endif 759 fprintf(stderr, "\t-a maximum contiguous blocks\n"); 760 fprintf(stderr, "\t-b block size\n"); 761 fprintf(stderr, "\t-c cylinders/group\n"); 762 fprintf(stderr, "\t-d rotational delay between contiguous blocks\n"); 763 fprintf(stderr, "\t-e maximum blocks per file in a cylinder group\n"); 764 fprintf(stderr, "\t-f frag size\n"); 765 fprintf(stderr, "\t-i number of bytes per inode\n"); 766 fprintf(stderr, "\t-k sector 0 skew, per track\n"); 767 fprintf(stderr, "\t-l hardware sector interleave\n"); 768 fprintf(stderr, "\t-m minimum free space %%\n"); 769 fprintf(stderr, "\t-n number of distinguished rotational positions\n"); 770 fprintf(stderr, "\t-o optimization preference (`space' or `time')\n"); 771 fprintf(stderr, "\t-p spare sectors per track\n"); 772 fprintf(stderr, "\t-s file system size (sectors)\n"); 773 fprintf(stderr, "\t-r revolutions/minute\n"); 774 fprintf(stderr, "\t-t tracks/cylinder\n"); 775 fprintf(stderr, "\t-u sectors/track\n"); 776 fprintf(stderr, 777 "\t-v do not attempt to determine partition name from device name\n"); 778 fprintf(stderr, "\t-x spare sectors per cylinder\n"); 779 exit(1); 780 } 781