Merge branch 'master' of ssh://crater.dragonflybsd.org/repository/git/dragonfly
[dragonfly.git] / sbin / newfs / newfs.c
CommitLineData
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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.
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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 $
5dde079e 36 * $DragonFly: src/sbin/newfs/newfs.c,v 1.17 2007/06/19 19:18:20 dillon Exp $
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37 */
38
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39/*
40 * newfs: friendly front end to mkfs
41 */
42#include <sys/param.h>
43#include <sys/stat.h>
41e59acb 44#include <sys/diskslice.h>
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45#include <sys/file.h>
46#include <sys/mount.h>
47
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48#include <vfs/ufs/dir.h>
49#include <vfs/ufs/dinode.h>
50#include <vfs/ufs/fs.h>
51#include <vfs/ufs/ufsmount.h>
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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>
9ab0684c 62#include <disktab.h>
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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"
76f3e8b3 76#include "defs.h"
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77
78struct mntopt mopts[] = {
79 MOPT_STDOPTS,
80 MOPT_ASYNC,
4462150b 81 MOPT_NULL,
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82};
83
984263bc 84void fatal(const char *fmt, ...);
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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
157int mfs; /* run as the memory based filesystem */
158char *mfs_mtpt; /* mount point for mfs */
159struct stat mfs_mtstat; /* stat prior to mount */
160int Nflag; /* run without writing file system */
161int Oflag; /* format as an 4.3BSD file system */
76f3e8b3 162int Cflag; /* copy underlying filesystem (mfs only) */
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163int Uflag; /* enable soft updates for file system */
164int fssize; /* file system size */
165int ntracks = NTRACKS; /* # tracks/cylinder */
166int nsectors = NSECTORS; /* # sectors/track */
167int nphyssectors; /* # sectors/track including spares */
168int secpercyl; /* sectors per cylinder */
169int trackspares = -1; /* spare sectors per track */
170int cylspares = -1; /* spare sectors per cylinder */
171int sectorsize; /* bytes/sector */
172int realsectorsize; /* bytes/sector in hardware */
173int rpm; /* revolutions/minute of drive */
174int interleave; /* hardware sector interleave */
175int trackskew = -1; /* sector 0 skew, per track */
176int headswitch; /* head switch time, usec */
177int trackseek; /* track-to-track seek, usec */
178int fsize = 0; /* fragment size */
179int bsize = 0; /* block size */
180int cpg = DESCPG; /* cylinders/cylinder group */
181int cpgflg; /* cylinders/cylinder group flag was given */
182int minfree = MINFREE; /* free space threshold */
183int opt = DEFAULTOPT; /* optimization preference (space or time) */
184int density; /* number of bytes per inode */
185int maxcontig = 0; /* max contiguous blocks to allocate */
186int rotdelay = ROTDELAY; /* rotational delay between blocks */
187int maxbpg; /* maximum blocks per file in a cyl group */
188int nrpos = NRPOS; /* # of distinguished rotational positions */
189int avgfilesize = AVFILESIZ;/* expected average file size */
190int avgfilesperdir = AFPDIR;/* expected number of files per directory */
191int bbsize = BBSIZE; /* boot block size */
192int sbsize = SBSIZE; /* superblock size */
193int mntflags = MNT_ASYNC; /* flags to be passed to mount */
194int t_or_u_flag = 0; /* user has specified -t or -u */
195u_long memleft; /* virtual memory available */
196caddr_t membase; /* start address of memory based filesystem */
197char *filename;
198#ifdef COMPAT
199char *disktype;
200int unlabeled;
201#endif
202
e4c9c0c8 203char mfsdevname[256];
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204char *progname;
205
9a76cd75 206static void usage(void);
e4c9c0c8 207static void mfsintr(int signo);
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208
209int
b5744197 210main(int argc, char **argv)
984263bc 211{
4462150b 212 int ch;
41e59acb 213 struct disktab geom; /* disk geometry data */
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214 struct stat st;
215 struct statfs *mp;
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216 int fsi = -1, fso = -1, len, n, vflag;
217 char *s1, *s2, *special;
4462150b 218 const char *opstring;
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219#ifdef MFS
220 struct vfsconf vfc;
221 int error;
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222#endif
223
41e59acb 224 bzero(&geom, sizeof(geom));
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225 vflag = 0;
226 if ((progname = strrchr(*argv, '/')))
227 ++progname;
228 else
229 progname = *argv;
230
231 if (strstr(progname, "mfs")) {
232 mfs = 1;
233 Nflag++;
234 }
235
236 opstring = mfs ?
76f3e8b3 237 "NCF:T:Ua:b:c:d:e:f:g:h:i:m:o:s:v" :
984263bc 238 "NOS:T:Ua:b:c:d:e:f:g:h:i:k:l:m:n:o:p:r:s:t:u:vx:";
41e59acb 239 while ((ch = getopt(argc, argv, opstring)) != -1) {
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240 switch (ch) {
241 case 'N':
242 Nflag = 1;
243 break;
244 case 'O':
245 Oflag = 1;
246 break;
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247 case 'C':
248 Cflag = 1; /* MFS only */
249 break;
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250 case 'S':
251 if ((sectorsize = atoi(optarg)) <= 0)
252 fatal("%s: bad sector size", optarg);
253 break;
254#ifdef COMPAT
255 case 'T':
256 disktype = optarg;
257 break;
258#endif
259 case 'F':
260 filename = optarg;
261 break;
262 case 'U':
263 Uflag = 1;
264 break;
265 case 'a':
266 if ((maxcontig = atoi(optarg)) <= 0)
267 fatal("%s: bad maximum contiguous blocks",
268 optarg);
269 break;
270 case 'b':
271 if ((bsize = atoi(optarg)) < MINBSIZE)
272 fatal("%s: bad block size", optarg);
273 break;
274 case 'c':
275 if ((cpg = atoi(optarg)) <= 0)
276 fatal("%s: bad cylinders/group", optarg);
277 cpgflg++;
278 break;
279 case 'd':
280 if ((rotdelay = atoi(optarg)) < 0)
281 fatal("%s: bad rotational delay", optarg);
282 break;
283 case 'e':
284 if ((maxbpg = atoi(optarg)) <= 0)
285 fatal("%s: bad blocks per file in a cylinder group",
286 optarg);
287 break;
288 case 'f':
289 if ((fsize = atoi(optarg)) <= 0)
290 fatal("%s: bad fragment size", optarg);
291 break;
292 case 'g':
293 if ((avgfilesize = atoi(optarg)) <= 0)
294 fatal("%s: bad average file size", optarg);
295 break;
296 case 'h':
297 if ((avgfilesperdir = atoi(optarg)) <= 0)
298 fatal("%s: bad average files per dir", optarg);
299 break;
300 case 'i':
301 if ((density = atoi(optarg)) <= 0)
302 fatal("%s: bad bytes per inode", optarg);
303 break;
304 case 'k':
305 if ((trackskew = atoi(optarg)) < 0)
306 fatal("%s: bad track skew", optarg);
307 break;
308 case 'l':
309 if ((interleave = atoi(optarg)) <= 0)
310 fatal("%s: bad interleave", optarg);
311 break;
312 case 'm':
313 if ((minfree = atoi(optarg)) < 0 || minfree > 99)
314 fatal("%s: bad free space %%", optarg);
315 break;
316 case 'n':
317 if ((nrpos = atoi(optarg)) < 0)
318 fatal("%s: bad rotational layout count",
319 optarg);
320 if (nrpos == 0)
321 nrpos = 1;
322 break;
323 case 'o':
324 if (mfs)
325 getmntopts(optarg, mopts, &mntflags, 0);
326 else {
327 if (strcmp(optarg, "space") == 0)
328 opt = FS_OPTSPACE;
329 else if (strcmp(optarg, "time") == 0)
330 opt = FS_OPTTIME;
331 else
332 fatal("%s: unknown optimization preference: use `space' or `time'", optarg);
333 }
334 break;
335 case 'p':
336 if ((trackspares = atoi(optarg)) < 0)
337 fatal("%s: bad spare sectors per track",
338 optarg);
339 break;
340 case 'r':
341 if ((rpm = atoi(optarg)) <= 0)
342 fatal("%s: bad revolutions/minute", optarg);
343 break;
344 case 's':
345 if ((fssize = atoi(optarg)) <= 0)
346 fatal("%s: bad file system size", optarg);
347 break;
348 case 't':
349 t_or_u_flag++;
350 if ((ntracks = atoi(optarg)) < 0)
351 fatal("%s: bad total tracks", optarg);
352 break;
353 case 'u':
354 t_or_u_flag++;
355 if ((nsectors = atoi(optarg)) < 0)
356 fatal("%s: bad sectors/track", optarg);
357 break;
358 case 'v':
359 vflag = 1;
360 break;
361 case 'x':
362 if ((cylspares = atoi(optarg)) < 0)
363 fatal("%s: bad spare sectors per cylinder",
364 optarg);
365 break;
366 case '?':
367 default:
368 usage();
369 }
41e59acb 370 }
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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. */
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385
386 geom.d_media_blksize = 512;
387 geom.d_nheads = 16;
388 geom.d_secpertrack = 64;
389 /* geom.d_ncylinders not used */
390 geom.d_secpercyl = 1024;
391 geom.d_media_blocks = 16384;
392 geom.d_rpm = 3600;
393 geom.d_interleave = 1;
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394
395 goto havelabel;
396 }
397
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398 /*
399 * If we can't stat the device and the path is relative, try
400 * prepending /dev.
401 */
402 if (stat(special, &st) < 0 && special[0] && special[0] != '/')
403 asprintf(&special, "/dev/%s", special);
404
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405 if (Nflag) {
406 fso = -1;
407 } else {
408 fso = open(special, O_WRONLY);
409 if (fso < 0)
410 fatal("%s: %s", special, strerror(errno));
411
412 /* Bail if target special is mounted */
413 n = getmntinfo(&mp, MNT_NOWAIT);
414 if (n == 0)
415 fatal("%s: getmntinfo: %s", special, strerror(errno));
416
417 len = sizeof(_PATH_DEV) - 1;
418 s1 = special;
419 if (strncmp(_PATH_DEV, s1, len) == 0)
420 s1 += len;
421
422 while (--n >= 0) {
423 s2 = mp->f_mntfromname;
424 if (strncmp(_PATH_DEV, s2, len) == 0) {
425 s2 += len - 1;
426 *s2 = 'r';
427 }
428 if (strcmp(s1, s2) == 0 || strcmp(s1, &s2[1]) == 0)
429 fatal("%s is mounted on %s",
430 special, mp->f_mntonname);
431 ++mp;
432 }
433 }
434 if (mfs && disktype != NULL) {
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435 struct disktab *dt;
436
437 if ((dt = getdisktabbyname(disktype)) == NULL)
984263bc 438 fatal("%s: unknown disk type", disktype);
41e59acb 439 geom = *dt;
984263bc 440 } else {
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441 struct partinfo pinfo;
442
443 if (special[0] == 0)
444 fatal("null special file name");
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445 fsi = open(special, O_RDONLY);
446 if (fsi < 0)
447 fatal("%s: %s", special, strerror(errno));
448 if (fstat(fsi, &st) < 0)
449 fatal("%s: %s", special, strerror(errno));
41e59acb 450 if ((st.st_mode & S_IFMT) != S_IFCHR && !mfs && !vflag)
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451 printf("%s: %s: not a character-special device\n",
452 progname, special);
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453#ifdef COMPAT
454 if (!mfs && disktype == NULL)
455 disktype = argv[1];
456#endif
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457 if (ioctl(fsi, DIOCGPART, &pinfo) < 0) {
458 if (!vflag) {
459 fatal("%s: unable to retrieve geometry "
460 "information", argv[0]);
461 }
462 /*
463 * fake up geometry data
464 */
465 geom.d_media_blksize = 512;
466 geom.d_nheads = 16;
467 geom.d_secpertrack = 64;
468 geom.d_secpercyl = 1024;
469 geom.d_media_blocks = st.st_size /
470 geom.d_media_blksize;
471 geom.d_media_size = geom.d_media_blocks *
472 geom.d_media_blksize;
473 /* geom.d_ncylinders not used */
3af2835d 474 } else {
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475 /*
476 * extract geometry from pinfo
477 */
478 geom.d_media_blksize = pinfo.media_blksize;
479 geom.d_nheads = pinfo.d_nheads;
480 geom.d_secpertrack = pinfo.d_secpertrack;
481 geom.d_secpercyl = pinfo.d_secpercyl;
482 /* geom.d_ncylinders not used */
483 geom.d_media_blocks = pinfo.media_blocks;
484 geom.d_media_size = pinfo.media_size;
3af2835d 485 }
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486 if (geom.d_media_blocks == 0 || geom.d_media_size == 0) {
487 fatal("%s: is unavailable", argv[0]);
3af2835d 488 }
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489 printf("%s: media size %6.2fMB\n",
490 argv[0], geom.d_media_size / 1024.0 / 1024.0);
491 if (geom.d_media_size / 512 >= 0x80000000ULL)
492 fatal("%s: media size is too large for newfs to handle",
493 argv[0]);
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494 }
495havelabel:
496 if (fssize == 0)
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497 fssize = geom.d_media_blocks;
498 if ((uint32_t)fssize > geom.d_media_blocks && !mfs) {
499 fatal("%s: maximum file system size is %lld blocks",
500 argv[0], geom.d_media_blocks);
501 }
984263bc 502 if (rpm == 0) {
41e59acb 503 rpm = geom.d_rpm;
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504 if (rpm <= 0)
505 rpm = 3600;
506 }
507 if (ntracks == 0) {
41e59acb 508 ntracks = geom.d_nheads;
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509 if (ntracks <= 0)
510 fatal("%s: no default #tracks", argv[0]);
511 }
512 if (nsectors == 0) {
41e59acb 513 nsectors = geom.d_secpertrack;
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514 if (nsectors <= 0)
515 fatal("%s: no default #sectors/track", argv[0]);
516 }
517 if (sectorsize == 0) {
41e59acb 518 sectorsize = geom.d_media_blksize;
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519 if (sectorsize <= 0)
520 fatal("%s: no default sector size", argv[0]);
521 }
522 if (trackskew == -1) {
41e59acb 523 trackskew = geom.d_trackskew;
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524 if (trackskew < 0)
525 trackskew = 0;
526 }
527 if (interleave == 0) {
41e59acb 528 interleave = geom.d_interleave;
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529 if (interleave <= 0)
530 interleave = 1;
531 }
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532 if (fsize == 0)
533 fsize = MAX(DFL_FRAGSIZE, geom.d_media_blksize);
534 if (bsize == 0)
535 bsize = MIN(DFL_BLKSIZE, 8 * fsize);
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536 /*
537 * Maxcontig sets the default for the maximum number of blocks
538 * that may be allocated sequentially. With filesystem clustering
539 * it is possible to allocate contiguous blocks up to the maximum
540 * transfer size permitted by the controller or buffering.
541 */
542 if (maxcontig == 0)
543 maxcontig = MAX(1, MAXPHYS / bsize - 1);
544 if (density == 0)
545 density = NFPI * fsize;
546 if (minfree < MINFREE && opt != FS_OPTSPACE) {
547 fprintf(stderr, "Warning: changing optimization to space ");
548 fprintf(stderr, "because minfree is less than %d%%\n", MINFREE);
549 opt = FS_OPTSPACE;
550 }
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551 if (trackspares == -1)
552 trackspares = 0;
984263bc 553 nphyssectors = nsectors + trackspares;
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554 if (cylspares == -1)
555 cylspares = 0;
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556 secpercyl = nsectors * ntracks - cylspares;
557 /*
558 * Only complain if -t or -u have been specified; the default
559 * case (4096 sectors per cylinder) is intended to disagree
560 * with the disklabel.
561 */
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562 if (t_or_u_flag && (uint32_t)secpercyl != geom.d_secpercyl)
563 fprintf(stderr, "%s (%d) %s (%u)\n",
984263bc 564 "Warning: calculated sectors per cylinder", secpercyl,
41e59acb 565 "disagrees with disk label", geom.d_secpercyl);
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566 if (maxbpg == 0)
567 maxbpg = MAXBLKPG(bsize);
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568 headswitch = geom.d_headswitch;
569 trackseek = geom.d_trkseek;
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570 realsectorsize = sectorsize;
571 if (sectorsize != DEV_BSIZE) { /* XXX */
572 int secperblk = sectorsize / DEV_BSIZE;
573
574 sectorsize = DEV_BSIZE;
575 nsectors *= secperblk;
576 nphyssectors *= secperblk;
577 secpercyl *= secperblk;
578 fssize *= secperblk;
984263bc 579 }
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580 if (mfs) {
581 mfs_mtpt = argv[1];
582 if (
583 stat(mfs_mtpt, &mfs_mtstat) < 0 ||
584 !S_ISDIR(mfs_mtstat.st_mode)
585 ) {
586 fatal("mount point not dir: %s", mfs_mtpt);
587 }
588 }
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589 mkfs(special, fsi, fso, (Cflag && mfs) ? argv[1] : NULL);
590
591 /*
592 * NOTE: Newfs no longer accesses or attempts to update the
593 * filesystem disklabel.
594 */
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595 if (!Nflag)
596 close(fso);
597 close(fsi);
598#ifdef MFS
599 if (mfs) {
600 struct mfs_args args;
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601
602 bzero(&args, sizeof(args));
984263bc 603
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604 snprintf(mfsdevname, sizeof(mfsdevname), "/dev/mfs%d",
605 getpid());
606 args.fspec = mfsdevname;
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607 args.export.ex_root = -2;
608 if (mntflags & MNT_RDONLY)
609 args.export.ex_flags = MNT_EXRDONLY;
610 else
611 args.export.ex_flags = 0;
612 args.base = membase;
613 args.size = fssize * sectorsize;
614
615 error = getvfsbyname("mfs", &vfc);
616 if (error && vfsisloadable("mfs")) {
617 if (vfsload("mfs"))
618 fatal("vfsload(mfs)");
619 endvfsent(); /* flush cache */
620 error = getvfsbyname("mfs", &vfc);
621 }
622 if (error)
623 fatal("mfs filesystem not available");
624
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625#if 0
626 int udev;
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627 udev = (253 << 8) | (getpid() & 255) |
628 ((getpid() & ~0xFF) << 8);
629 if (mknod(mfsdevname, S_IFCHR | 0700, udev) < 0)
630 printf("Warning: unable to create %s\n", mfsdevname);
ac9389d5 631#endif
e4c9c0c8 632 signal(SIGINT, mfsintr);
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633 if (mount(vfc.vfc_name, argv[1], mntflags, &args) < 0)
634 fatal("%s: %s", argv[1], strerror(errno));
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635 signal(SIGINT, SIG_DFL);
636 mfsintr(SIGINT);
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637 }
638#endif
639 exit(0);
640}
641
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642#ifdef MFS
643
644static void
4462150b 645mfsintr(__unused int signo)
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646{
647 if (filename)
648 munmap(membase, fssize * sectorsize);
ac9389d5 649#if 0
e4c9c0c8 650 remove(mfsdevname);
ac9389d5 651#endif
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652}
653
654#endif
655
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656/*VARARGS*/
657void
984263bc 658fatal(const char *fmt, ...)
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659{
660 va_list ap;
661
984263bc 662 va_start(ap, fmt);
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663 if (fcntl(STDERR_FILENO, F_GETFL) < 0) {
664 openlog(progname, LOG_CONS, LOG_DAEMON);
665 vsyslog(LOG_ERR, fmt, ap);
666 closelog();
667 } else {
668 vwarnx(fmt, ap);
669 }
670 va_end(ap);
671 exit(1);
672 /*NOTREACHED*/
673}
674
675static void
b5744197 676usage(void)
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677{
678 if (mfs) {
679 fprintf(stderr,
680 "usage: %s [ -fsoptions ] special-device mount-point\n",
681 progname);
682 } else
683 fprintf(stderr,
684 "usage: %s [ -fsoptions ] special-device%s\n",
685 progname,
686#ifdef COMPAT
687 " [device-type]");
688#else
689 "");
690#endif
691 fprintf(stderr, "where fsoptions are:\n");
70d0e24f 692 fprintf(stderr, "\t-C (mfs) Copy the underlying filesystem to the MFS mount\n");
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693 fprintf(stderr,
694 "\t-N do not create file system, just print out parameters\n");
695 fprintf(stderr, "\t-O create a 4.3BSD format filesystem\n");
696 fprintf(stderr, "\t-S sector size\n");
697#ifdef COMPAT
698 fprintf(stderr, "\t-T disktype\n");
699#endif
700 fprintf(stderr, "\t-U enable soft updates\n");
701 fprintf(stderr, "\t-a maximum contiguous blocks\n");
702 fprintf(stderr, "\t-b block size\n");
703 fprintf(stderr, "\t-c cylinders/group\n");
704 fprintf(stderr, "\t-d rotational delay between contiguous blocks\n");
705 fprintf(stderr, "\t-e maximum blocks per file in a cylinder group\n");
706 fprintf(stderr, "\t-f frag size\n");
707 fprintf(stderr, "\t-g average file size\n");
708 fprintf(stderr, "\t-h average files per directory\n");
709 fprintf(stderr, "\t-i number of bytes per inode\n");
710 fprintf(stderr, "\t-k sector 0 skew, per track\n");
711 fprintf(stderr, "\t-l hardware sector interleave\n");
712 fprintf(stderr, "\t-m minimum free space %%\n");
713 fprintf(stderr, "\t-n number of distinguished rotational positions\n");
714 fprintf(stderr, "\t-o optimization preference (`space' or `time')\n");
715 fprintf(stderr, "\t-p spare sectors per track\n");
716 fprintf(stderr, "\t-s file system size (sectors)\n");
717 fprintf(stderr, "\t-r revolutions/minute\n");
718 fprintf(stderr, "\t-t tracks/cylinder\n");
719 fprintf(stderr, "\t-u sectors/track\n");
720 fprintf(stderr,
721 "\t-v do not attempt to determine partition name from device name\n");
722 fprintf(stderr, "\t-x spare sectors per cylinder\n");
723 exit(1);
724}