/* $NetBSD: newfs.c,v 1.78 2003/12/22 10:33:21 jmmv Exp $ */ /* * Copyright (c) 1983, 1989, 1993, 1994 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ /* * Copyright (c) 2002 Networks Associates Technology, Inc. * All rights reserved. * * This software was developed for the FreeBSD Project by Marshall * Kirk McKusick and Network Associates Laboratories, the Security * Research Division of Network Associates, Inc. under DARPA/SPAWAR * contract N66001-01-C-8035 ("CBOSS"), as part of the DARPA CHATS * research program * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include #ifndef lint __COPYRIGHT("@(#) Copyright (c) 1983, 1989, 1993, 1994\n\ The Regents of the University of California. All rights reserved.\n"); #endif /* not lint */ #ifndef lint #if 0 static char sccsid[] = "@(#)newfs.c 8.13 (Berkeley) 5/1/95"; #else __RCSID("$NetBSD: newfs.c,v 1.78 2003/12/22 10:33:21 jmmv Exp $"); #endif #endif /* not lint */ /* * newfs: friendly front end to mkfs */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "mntopts.h" #include "dkcksum.h" #include "extern.h" struct mntopt mopts[] = { MOPT_STDOPTS, MOPT_ASYNC, MOPT_UPDATE, MOPT_GETARGS, MOPT_NOATIME, { NULL }, }; static struct disklabel *getdisklabel(char *, int); static void rewritelabel(char *, int, struct disklabel *); static gid_t mfs_group(const char *); static uid_t mfs_user(const char *); static int64_t strsuftoi64(const char *, const char *, int64_t, int64_t, int *); static void usage(void); int main(int, char *[]); #define COMPAT /* allow non-labeled disks */ /* * The following two constants set the default block and fragment sizes. * Both constants must be a power of 2 and meet the following constraints: * MINBSIZE <= DESBLKSIZE <= MAXBSIZE * sectorsize <= DESFRAGSIZE <= DESBLKSIZE * DESBLKSIZE / DESFRAGSIZE <= 8 */ /* * For file systems smaller than SMALL_FSSIZE we use the S_DFL_* defaults, * otherwise if less than MEDIUM_FSSIZE use M_DFL_*, otherwise use * L_DFL_*. */ #define SMALL_FSSIZE (20*1024*2) #define S_DFL_FRAGSIZE 512 #define MEDIUM_FSSIZE (1000*1024*2) #define M_DFL_FRAGSIZE 1024 #define L_DFL_FRAGSIZE 2048 #define DFL_FRAG_BLK 8 /* Apple requires the fragment size to be at least APPLEUFS_DIRBLKSIZ * but the block size cannot be larger than Darwin's PAGE_SIZE. See * the mount check in Darwin's ffs_mountfs for an explanation. */ #define APPLEUFS_DFL_FRAGSIZE APPLEUFS_DIRBLKSIZ /* 1024 */ #define APPLEUFS_DFL_BLKSIZE 4096 /* default Darwin PAGE_SIZE */ /* * Default sector size. */ #define DFL_SECSIZE 512 /* * MAXBLKPG determines the maximum number of data blocks which are * placed in a single cylinder group. The default is one indirect * block worth of data blocks. */ #define MAXBLKPG_UFS1(bsize) ((bsize) / sizeof(int32_t)) #define MAXBLKPG_UFS2(bsize) ((bsize) / sizeof(int64_t)) /* * Each file system has a number of inodes statically allocated. * We allocate one inode slot per NFPI fragments, expecting this * to be far more than we will ever need. */ #define NFPI 4 int mfs; /* run as the memory based filesystem */ int Nflag; /* run without writing file system */ int Oflag = 1; /* format as an 4.3BSD file system */ int64_t fssize; /* file system size */ int sectorsize; /* bytes/sector */ int fsize = 0; /* fragment size */ int bsize = 0; /* block size */ int maxbsize = 0; /* maximum clustering */ int minfree = MINFREE; /* free space threshold */ int opt = DEFAULTOPT; /* optimization preference (space or time) */ int density; /* number of bytes per inode */ int num_inodes; /* number of inoder (overrides density) */ int maxcontig = 0; /* max contiguous blocks to allocate */ int maxbpg; /* maximum blocks per file in a cyl group */ int avgfilesize = AVFILESIZ;/* expected average file size */ int avgfpdir = AFPDIR; /* expected number of files per directory */ int mntflags = MNT_ASYNC; /* flags to be passed to mount */ u_long memleft; /* virtual memory available */ caddr_t membase; /* start address of memory based filesystem */ int needswap; /* Filesystem not in native byte order */ #ifdef COMPAT char *disktype; int unlabeled; #endif char *appleufs_volname = 0; /* Apple UFS volume name */ int isappleufs = 0; char device[MAXPATHLEN]; int main(int argc, char *argv[]) { struct partition *pp = NULL; struct disklabel *lp = NULL; struct partition oldpartition; struct statfs *mp; struct stat sb; int ch, fsi, fso, len, n, Fflag, Iflag, Zflag; uint ptn = 0; /* gcc -Wuninitialised */ char *cp, *s1, *s2, *special; const char *opstring; int byte_sized = 0; #ifdef MFS char mountfromname[100]; pid_t pid, res; struct statfs sf; int status; #endif mode_t mfsmode = 01777; /* default mode for a /tmp-type directory */ uid_t mfsuid = 0; /* user root */ gid_t mfsgid = 0; /* group wheel */ cp = NULL; fsi = fso = -1; Fflag = Iflag = Zflag = 0; if (strstr(getprogname(), "mfs")) { mfs = 1; Nflag++; } opstring = mfs ? "NT:a:b:c:d:e:f:g:h:i:m:n:o:p:s:u:" : "B:FINO:S:T:Za:b:c:d:e:f:g:h:i:l:m:n:o:p:r:s:u:v:"; while ((ch = getopt(argc, argv, opstring)) != -1) switch (ch) { case 'B': if (strcmp(optarg, "be") == 0) { #if BYTE_ORDER == LITTLE_ENDIAN needswap = 1; #endif } else if (strcmp(optarg, "le") == 0) { #if BYTE_ORDER == BIG_ENDIAN needswap = 1; #endif } else usage(); break; case 'F': Fflag = 1; break; case 'I': Iflag = 1; break; case 'N': Nflag = 1; break; case 'O': Oflag = strsuftoi64("format", optarg, 0, 2, NULL); break; case 'S': sectorsize = strsuftoi64("sector size", optarg, 1, INT_MAX, NULL); break; #ifdef COMPAT case 'T': disktype = optarg; break; #endif case 'Z': Zflag = 1; break; case 'a': maxcontig = strsuftoi64("maximum contiguous blocks", optarg, 1, INT_MAX, NULL); break; case 'b': bsize = strsuftoi64("block size", optarg, MINBSIZE, MAXBSIZE, NULL); break; case 'c': /* was cylinders per group... */ break; case 'd': maxbsize = strsuftoi64("maximum extent size", optarg, 0, INT_MAX, NULL); break; case 'e': maxbpg = strsuftoi64( "blocks per file in a cylinder group", optarg, 1, INT_MAX, NULL); break; case 'f': fsize = strsuftoi64("fragment size", optarg, 1, MAXBSIZE, NULL); break; case 'g': if (mfs) mfsgid = mfs_group(optarg); else { avgfilesize = strsuftoi64("average file size", optarg, 1, INT_MAX, NULL); } break; case 'h': avgfpdir = strsuftoi64("expected files per directory", optarg, 1, INT_MAX, NULL); break; case 'i': density = strsuftoi64("bytes per inode", optarg, 1, INT_MAX, NULL); break; case 'm': minfree = strsuftoi64("free space %", optarg, 0, 99, NULL); break; case 'n': num_inodes = strsuftoi64("number of inodes", optarg, 1, INT_MAX, NULL); break; case 'o': if (mfs) getmntopts(optarg, mopts, &mntflags, 0); else { if (strcmp(optarg, "space") == 0) opt = FS_OPTSPACE; else if (strcmp(optarg, "time") == 0) opt = FS_OPTTIME; else errx(1, "%s %s", "unknown optimization preference: ", "use `space' or `time'."); } break; case 'p': if (mfs) { if ((mfsmode = strtol(optarg, NULL, 8)) <= 0) errx(1, "bad mode `%s'", optarg); } else errx(1, "unknown option 'p'"); break; case 's': fssize = strsuftoi64("file system size", optarg, INT64_MIN, INT64_MAX, &byte_sized); break; case 'u': if (mfs) mfsuid = mfs_user(optarg); else errx(1, "deprecated option 'u'"); break; case 'v': appleufs_volname = optarg; if (strchr(appleufs_volname, ':') || strchr(appleufs_volname, '/')) errx(1,"Apple UFS volume name cannot contain ':' or '/'"); if (appleufs_volname[0] == '\0') errx(1,"Apple UFS volume name cannot be zero length"); isappleufs = 1; break; case '?': default: usage(); } argc -= optind; argv += optind; if (mntflags & MNT_GETARGS) goto doit; if (argc != 2 && (mfs || argc != 1)) usage(); memset(&oldpartition, 0, sizeof oldpartition); memset(&sb, 0, sizeof sb); special = argv[0]; if (Fflag || mfs) { /* * It's a file system image or an MFS, * no label, use fixed default for sectorsize. */ if (sectorsize == 0) sectorsize = DFL_SECSIZE; if (!mfs) { /* creating image in a regular file */ int fl; if (Nflag) fl = O_RDONLY; else { if (fssize > 0) fl = O_RDWR | O_CREAT; else fl = O_RDWR; } fsi = open(special, fl, 0777); if (fsi == -1) err(1, "can't open file %s", special); if (fstat(fsi, &sb) == -1) err(1, "can't fstat opened %s", special); if (!Nflag) fso = fsi; } } else { /* !Fflag && !mfs */ fsi = opendisk(special, O_RDONLY, device, sizeof(device), 0); special = device; if (fsi < 0 || fstat(fsi, &sb) == -1) err(1, "%s: open for read", special); if (!Nflag) { fso = open(special, O_WRONLY, 0); if (fso < 0) err(1, "%s: open for write", special); /* Bail if target special is mounted */ n = getmntinfo(&mp, MNT_NOWAIT); if (n == 0) err(1, "%s: getmntinfo", special); len = sizeof(_PATH_DEV) - 1; s1 = special; if (strncmp(_PATH_DEV, s1, len) == 0) s1 += len; while (--n >= 0) { s2 = mp->f_mntfromname; if (strncmp(_PATH_DEV, s2, len) == 0) { s2 += len - 1; *s2 = 'r'; } if (strcmp(s1, s2) == 0 || strcmp(s1, &s2[1]) == 0) errx(1, "%s is mounted on %s", special, mp->f_mntonname); ++mp; } } #ifdef COMPAT if (disktype == NULL) disktype = argv[1]; #endif lp = getdisklabel(special, fsi); if (sectorsize == 0) { sectorsize = lp->d_secsize; if (sectorsize <= 0) errx(1, "no default sector size"); } ptn = strchr(special, '\0')[-1] - 'a'; if (ptn < lp->d_npartitions && ptn == DISKPART(sb.st_rdev)) { /* Assume partition really does match the label */ pp = &lp->d_partitions[ptn]; oldpartition = *pp; if (pp->p_size == 0) errx(1, "`%c' partition is unavailable", 'a' + ptn); if (pp->p_fstype == FS_APPLEUFS) isappleufs = 1; if (!Iflag) { if (isappleufs) { if (pp->p_fstype != FS_APPLEUFS) errx(1, "`%c' partition type is not `Apple UFS'", 'a' + ptn); } else { if (pp->p_fstype != FS_BSDFFS) errx(1, "`%c' partition type is not `4.2BSD'", 'a' + ptn); } } } } /* !Fflag && !mfs */ if (byte_sized) fssize /= sectorsize; if (fssize <= 0) { if (sb.st_size != 0) fssize += sb.st_size / sectorsize; else fssize += oldpartition.p_size; if (fssize <= 0) errx(1, "Unable to determine file system size"); } if (pp != NULL && fssize > pp->p_size) errx(1, "maximum file system size on `%s' is %d sectors", special, pp->p_size); /* XXXLUKEM: only ftruncate() regular files ? (dsl: or at all?) */ if (Fflag && fso != -1 && ftruncate(fso, (off_t)fssize * sectorsize) == -1) err(1, "can't ftruncate %s to %" PRId64, special, fssize); if (Zflag && fso != -1) { /* pre-zero (and de-sparce) the file */ char *buf; int bufsize, i; off_t bufrem; struct statfs sfs; if (fstatfs(fso, &sfs) == -1) { warn("can't fstatfs `%s'", special); bufsize = 8192; } else bufsize = sfs.f_iosize; if ((buf = calloc(1, bufsize)) == NULL) err(1, "can't malloc buffer of %d", bufsize); bufrem = fssize * sectorsize; printf( "Creating file system image in `%s', size %lld bytes, in %d byte chunks.\n", special, (long long)bufrem, bufsize); while (bufrem > 0) { i = write(fso, buf, MIN(bufsize, bufrem)); if (i == -1) err(1, "writing image"); bufrem -= i; } free(buf); } /* Sort out fragment and block sizes */ if (fsize == 0) { fsize = bsize / DFL_FRAG_BLK; if (fsize == 0) fsize = oldpartition.p_fsize; if (fsize <= 0) { if (isappleufs) { fsize = APPLEUFS_DFL_FRAGSIZE; } else { if (fssize < SMALL_FSSIZE) fsize = S_DFL_FRAGSIZE; else if (fssize < MEDIUM_FSSIZE) fsize = M_DFL_FRAGSIZE; else fsize = L_DFL_FRAGSIZE; if (fsize < sectorsize) fsize = sectorsize; } } } if (bsize == 0) { bsize = oldpartition.p_frag * oldpartition.p_fsize; if (bsize <= 0) { if (isappleufs) bsize = APPLEUFS_DFL_BLKSIZE; else bsize = DFL_FRAG_BLK * fsize; } } if (isappleufs && (fsize < APPLEUFS_DFL_FRAGSIZE)) { warnx("Warning: chosen fsize of %d is less than Apple UFS minimum of %d", fsize, APPLEUFS_DFL_FRAGSIZE); } if (isappleufs && (bsize > APPLEUFS_DFL_BLKSIZE)) { warnx("Warning: chosen bsize of %d is greater than Apple UFS maximum of %d", bsize, APPLEUFS_DFL_BLKSIZE); } /* * Maxcontig sets the default for the maximum number of blocks * that may be allocated sequentially. With filesystem clustering * it is possible to allocate contiguous blocks up to the maximum * transfer size permitted by the controller or buffering. */ if (maxcontig == 0) maxcontig = MAX(1, MIN(MAXPHYS, MAXBSIZE) / bsize); if (density == 0) density = NFPI * fsize; if (minfree < MINFREE && opt != FS_OPTSPACE) { warnx("%s %s %d%%", "Warning: changing optimization to space", "because minfree is less than", MINFREE); opt = FS_OPTSPACE; } if (maxbpg == 0) { if (Oflag <= 1) maxbpg = MAXBLKPG_UFS1(bsize); else maxbpg = MAXBLKPG_UFS2(bsize); } mkfs(pp, special, fsi, fso, mfsmode, mfsuid, mfsgid); if (!Nflag && pp != NULL && memcmp(pp, &oldpartition, sizeof(oldpartition))) rewritelabel(special, fso, lp); if (fsi != -1 && fsi != fso) close(fsi); if (fso != -1) close(fso); #ifdef MFS if (mfs) { struct mfs_args args; switch (pid = fork()) { case -1: perror("mfs"); exit(10); case 0: (void)snprintf(mountfromname, sizeof(mountfromname), "mfs:%d", getpid()); break; default: (void)snprintf(mountfromname, sizeof(mountfromname), "mfs:%d", pid); for (;;) { /* * spin until the mount succeeds * or the child exits */ usleep(1); /* * XXX Here is a race condition: another process * can mount a filesystem which hides our * ramdisk before we see the success. */ if (statfs(argv[1], &sf) < 0) err(88, "statfs %s", argv[1]); if (!strcmp(sf.f_mntfromname, mountfromname) && !strncmp(sf.f_mntonname, argv[1], MNAMELEN) && !strcmp(sf.f_fstypename, "mfs")) exit(0); res = waitpid(pid, &status, WNOHANG); if (res == -1) err(11, "waitpid"); if (res != pid) continue; if (WIFEXITED(status)) { if (WEXITSTATUS(status) == 0) exit(0); errx(1, "%s: mount: %s", argv[1], strerror(WEXITSTATUS(status))); } else errx(11, "abnormal termination"); } /* NOTREACHED */ } (void) setsid(); (void) close(0); (void) close(1); (void) close(2); (void) chdir("/"); args.fspec = mountfromname; args.export.ex_root = -2; if (mntflags & MNT_RDONLY) args.export.ex_flags = MNT_EXRDONLY; else args.export.ex_flags = 0; args.base = membase; args.size = fssize * sectorsize; doit: if (mount(MOUNT_MFS, argv[1], mntflags, &args) < 0) { if (mntflags & MNT_GETARGS) err(1, "mount `%s' failed", argv[1]); exit(errno); /* parent prints message */ } if (mntflags & MNT_GETARGS) printf("base=%p, size=%ld\n", args.base, args.size); } #endif exit(0); } #ifdef COMPAT const char lmsg[] = "%s: can't read disk label; disk type must be specified"; #else const char lmsg[] = "%s: can't read disk label"; #endif static struct disklabel * getdisklabel(char *s, int fd) { static struct disklabel lab; #ifdef COMPAT if (disktype) { struct disklabel *lp; unlabeled++; lp = getdiskbyname(disktype); if (lp == NULL) errx(1, "%s: unknown disk type", disktype); return (lp); } #endif if (ioctl(fd, DIOCGDINFO, &lab) < 0) { warn("ioctl (GDINFO)"); errx(1, lmsg, s); } return (&lab); } static void rewritelabel(char *s, int fd, struct disklabel *lp) { #ifdef COMPAT if (unlabeled) return; #endif lp->d_checksum = 0; lp->d_checksum = dkcksum(lp); if (ioctl(fd, DIOCWDINFO, (char *)lp) < 0) { if (errno == ESRCH) return; warn("ioctl (WDINFO)"); errx(1, "%s: can't rewrite disk label", s); } #if __vax__ if (lp->d_type == DTYPE_SMD && lp->d_flags & D_BADSECT) { int i; int cfd; daddr_t alt; off_t loff; char specname[64]; char blk[1024]; char *cp; /* * Make name for 'c' partition. */ strlcpy(specname, s, sizeof(specname)); cp = specname + strlen(specname) - 1; if (!isdigit(*cp)) *cp = 'c'; cfd = open(specname, O_WRONLY); if (cfd < 0) err(1, "%s: open", specname); if ((loff = getlabeloffset()) < 0) err(1, "getlabeloffset()"); memset(blk, 0, sizeof(blk)); *(struct disklabel *)(blk + loff) = *lp; alt = lp->d_ncylinders * lp->d_secpercyl - lp->d_nsectors; for (i = 1; i < 11 && i < lp->d_nsectors; i += 2) { off_t offset; offset = alt + i; offset *= lp->d_secsize; if (lseek(cfd, offset, SEEK_SET) == -1) err(1, "lseek to badsector area: "); if (write(cfd, blk, lp->d_secsize) < lp->d_secsize) warn("alternate label %d write", i/2); } close(cfd); } #endif } static gid_t mfs_group(const char *gname) { struct group *gp; if (!(gp = getgrnam(gname)) && !isdigit((unsigned char)*gname)) errx(1, "unknown gname %s", gname); return gp ? gp->gr_gid : atoi(gname); } static uid_t mfs_user(const char *uname) { struct passwd *pp; if (!(pp = getpwnam(uname)) && !isdigit((unsigned char)*uname)) errx(1, "unknown user %s", uname); return pp ? pp->pw_uid : atoi(uname); } static int64_t strsuftoi64(const char *desc, const char *arg, int64_t min, int64_t max, int *num_suffix) { int64_t result, r1; int shift = 0; char *ep; errno = 0; r1 = strtoll(arg, &ep, 10); if (ep[0] != '\0' && ep[1] != '\0') errx(1, "%s `%s' is not a valid number.", desc, arg); switch (ep[0]) { case '\0': case 's': case 'S': if (num_suffix != NULL) *num_suffix = 0; break; case 'g': case 'G': shift += 10; /* FALLTHROUGH */ case 'm': case 'M': shift += 10; /* FALLTHROUGH */ case 'k': case 'K': shift += 10; /* FALLTHROUGH */ case 'b': case 'B': if (num_suffix != NULL) *num_suffix = 1; break; default: errx(1, "`%s' is not a valid suffix for %s.", ep, desc); } result = r1 << shift; if (errno == ERANGE || result >> shift != r1) errx(1, "%s `%s' is too large to convert.", desc, arg); if (result < min) errx(1, "%s `%s' (%" PRId64 ") is less than the minimum (%" PRId64 ").", desc, arg, result, min); if (result > max) errx(1, "%s `%s' (%" PRId64 ") is greater than the maximum (%" PRId64 ").", desc, arg, result, max); return result; } #define NEWFS 1 #define MFS_MOUNT 2 #define BOTH NEWFS | MFS_MOUNT struct help_strings { int flags; const char *str; } const help_strings[] = { { NEWFS, "-B byteorder\tbyte order (`be' or `le')" }, { NEWFS, "-F \t\tcreate file system image in regular file" }, { NEWFS, "-I \t\tdo not check that the file system type is '4.2BSD'" }, { BOTH, "-N \t\tdo not create file system, just print out " "parameters" }, { NEWFS, "-O N\t\tfilesystem format: 0 ==> 4.3BSD, 1 ==> FFS, 2 ==> UFS2" }, { NEWFS, "-S secsize\tsector size" }, #ifdef COMPAT { NEWFS, "-T disktype\tdisk type" }, #endif { NEWFS, "-Z \t\tpre-zero the image file" }, { BOTH, "-a maxcontig\tmaximum contiguous blocks" }, { BOTH, "-b bsize\tblock size" }, { BOTH, "-c blocks\tblocks per cylinder group" }, { BOTH, "-d maxbsize\tmaximum extent size" }, { BOTH, "-e maxbpg\tmaximum blocks per file in a cylinder group" }, { BOTH, "-f fsize\tfrag size" }, { NEWFS, "-g avgfilesize\taverage file size" }, { MFS_MOUNT, "-g groupname\tgroup name of mount point" }, { BOTH, "-h avgfpdir\taverage files per directory" }, { BOTH, "-i density\tnumber of bytes per inode" }, { BOTH, "-m minfree\tminimum free space %%" }, { BOTH, "-n inodes\tnumber of inodes (overrides -i density)" }, { BOTH, "-o optim\toptimization preference (`space' or `time')" }, { MFS_MOUNT, "-p perm\t\tpermissions (in octal)" }, { BOTH, "-s fssize\tfile system size (sectors)" }, { MFS_MOUNT, "-u username\tuser name of mount point" }, { NEWFS, "-v volname\tApple UFS volume name" }, { 0, NULL } }; static void usage(void) { int match; const struct help_strings *hs; if (mfs) { fprintf(stderr, "usage: %s [ fsoptions ] special-device mount-point\n", getprogname()); } else fprintf(stderr, "usage: %s [ fsoptions ] special-device%s\n", getprogname(), #ifdef COMPAT " [disk-type]"); #else ""); #endif fprintf(stderr, "where fsoptions are:\n"); match = mfs ? MFS_MOUNT : NEWFS; for (hs = help_strings; hs->flags != 0; hs++) if (hs->flags & match) fprintf(stderr, "\t%s\n", hs->str); exit(1); }