示例#1
0
文件: fstab.c 项目: 2asoft/freebsd
int
setfsent(void)
{
	if (_fs_fp) {
		rewind(_fs_fp);
		LineNo = 0;
		return (1);
	}
	if (fsp_set == 0) {
		if (issetugid())
			setfstab(NULL);
		else
			setfstab(getenv("PATH_FSTAB"));
	}
	if ((_fs_fp = fopen(path_fstab, "re")) != NULL) {
		LineNo = 0;
		return (1);
	}
	error(errno);
	return (0);
}
示例#2
0
int
main(int argc, char *argv[])
{
	struct fstab *fs;
	int i, rval = 0;
	const char *vfstype = NULL;
	char globopt[3];
	const char *etc_fstab;

	globopt[0] = '-';
	globopt[2] = '\0';

	TAILQ_INIT(&selhead);
	TAILQ_INIT(&opthead);

	etc_fstab = NULL;
	while ((i = getopt(argc, argv, "BCdvpfFnyl:t:T:c:")) != -1)
		switch (i) {
		case 'B':
			if (flags & CHECK_BACKGRD)
				errx(1, "Cannot specify -B and -F.");
			flags |= DO_BACKGRD;
			break;

		case 'd':
			flags |= CHECK_DEBUG;
			break;

		case 'v':
			flags |= CHECK_VERBOSE;
			break;

		case 'F':
			if (flags & DO_BACKGRD)
				errx(1, "Cannot specify -B and -F.");
			flags |= CHECK_BACKGRD;
			break;

		case 'p':
			flags |= CHECK_PREEN;
			/*FALLTHROUGH*/
		case 'C':
			flags |= CHECK_CLEAN;
			/*FALLTHROUGH*/
		case 'n':
		case 'y':
			globopt[1] = i;
			catopt(&options, globopt);
			break;

		case 'f':
			forceflag = 1;
			globopt[1] = i;
			catopt(&options, globopt);
			break;

		case 'l':
			warnx("Ignoring obsolete -l option\n");
			break;

		case 'T':
			if (*optarg)
				addoption(optarg);
			break;

		case 't':
			if (!TAILQ_EMPTY(&selhead))
				errx(1, "only one -t option may be specified.");

			maketypelist(optarg);
			vfstype = optarg;
			break;

		case 'c':
			etc_fstab = optarg;
			break;

		case '?':
		default:
			usage();
			/* NOTREACHED */
		}

	argc -= optind;
	argv += optind;

	if (etc_fstab != NULL)
		setfstab(etc_fstab);

	if (argc == 0)
		return checkfstab(flags, isok, checkfs);

#define	BADTYPE(type)							\
	(strcmp(type, FSTAB_RO) &&					\
	    strcmp(type, FSTAB_RW) && strcmp(type, FSTAB_RQ))


	for (; argc--; argv++) {
		const char *spec, *mntpt, *type, *cp;
		char device[MAXPATHLEN];
		struct statfs *mntp;

		mntpt = NULL;
		spec = *argv;
		cp = strrchr(spec, '/');
		if (cp == 0) {
			(void)snprintf(device, sizeof(device), "%s%s",
				_PATH_DEV, spec);
			spec = device;
		}
		mntp = getmntpt(spec);
		if (mntp != NULL) {
			spec = mntp->f_mntfromname;
			mntpt = mntp->f_mntonname;
		}
		if ((fs = getfsfile(spec)) == NULL &&
		    (fs = getfsspec(spec)) == NULL) {
			if (vfstype == NULL)
				vfstype = getfslab(spec);
			if (vfstype == NULL)
				errx(1, "Could not determine filesystem type");
			type = vfstype;
			devcheck(spec);
		} else {
			spec = fs->fs_spec;
			type = fs->fs_vfstype;
			mntpt = fs->fs_file;
			if (BADTYPE(fs->fs_type))
				errx(1, "%s has unknown file system type.",
				    spec);
		}
		if ((flags & CHECK_BACKGRD) &&
		    checkfs(type, spec, mntpt, "-F", NULL) == 0) {
			printf("%s: DEFER FOR BACKGROUND CHECKING\n", *argv);
			continue;
		}
		if ((flags & DO_BACKGRD) && forceflag == 0 &&
		    checkfs(type, spec, mntpt, "-F", NULL) != 0)
			continue;

		rval |= checkfs(type, spec, mntpt, NULL, NULL);
	}

	return rval;
}
示例#3
0
文件: mount.c 项目: coyizumi/cs111
int
main(int argc, char *argv[])
{
	const char *mntfromname, **vfslist, *vfstype;
	struct fstab *fs;
	struct statfs *mntbuf;
	int all, ch, i, init_flags, late, failok, mntsize, rval, have_fstab, ro;
	int onlylate;
	char *cp, *ep, *options;

	all = init_flags = late = onlylate = 0;
	ro = 0;
	options = NULL;
	vfslist = NULL;
	vfstype = "ufs";
	while ((ch = getopt(argc, argv, "adF:fLlno:prt:uvw")) != -1)
		switch (ch) {
		case 'a':
			all = 1;
			break;
		case 'd':
			debug = 1;
			break;
		case 'F':
			setfstab(optarg);
			break;
		case 'f':
			init_flags |= MNT_FORCE;
			break;
		case 'L':
			onlylate = 1;
			late = 1;
			break;
		case 'l':
			late = 1;
			break;
		case 'n':
			/* For compatibility with the Linux version of mount. */
			break;
		case 'o':
			if (*optarg) {
				options = catopt(options, optarg);
				if (specified_ro(optarg))
					ro = 1;
			}
			break;
		case 'p':
			fstab_style = 1;
			verbose = 1;
			break;
		case 'r':
			options = catopt(options, "ro");
			ro = 1;
			break;
		case 't':
			if (vfslist != NULL)
				errx(1, "only one -t option may be specified");
			vfslist = makevfslist(optarg);
			vfstype = optarg;
			break;
		case 'u':
			init_flags |= MNT_UPDATE;
			break;
		case 'v':
			verbose = 1;
			break;
		case 'w':
			options = catopt(options, "noro");
			break;
		case '?':
		default:
			usage();
			/* NOTREACHED */
		}
	argc -= optind;
	argv += optind;

#define	BADTYPE(type)							\
	(strcmp(type, FSTAB_RO) &&					\
	    strcmp(type, FSTAB_RW) && strcmp(type, FSTAB_RQ))

	if ((init_flags & MNT_UPDATE) && (ro == 0))
		options = catopt(options, "noro");

	rval = 0;
	switch (argc) {
	case 0:
		if ((mntsize = getmntinfo(&mntbuf, MNT_NOWAIT)) == 0)
			err(1, "getmntinfo");
		if (all) {
			while ((fs = getfsent()) != NULL) {
				if (BADTYPE(fs->fs_type))
					continue;
				if (checkvfsname(fs->fs_vfstype, vfslist))
					continue;
				if (hasopt(fs->fs_mntops, "noauto"))
					continue;
				if (!hasopt(fs->fs_mntops, "late") && onlylate)
					continue;
				if (hasopt(fs->fs_mntops, "late") && !late)
					continue;
				if (hasopt(fs->fs_mntops, "failok"))
					failok = 1;
				else
					failok = 0;
				if (!(init_flags & MNT_UPDATE) &&
				    ismounted(fs, mntbuf, mntsize))
					continue;
				options = update_options(options, fs->fs_mntops,
				    mntbuf->f_flags);
				if (mountfs(fs->fs_vfstype, fs->fs_spec,
				    fs->fs_file, init_flags, options,
				    fs->fs_mntops) && !failok)
					rval = 1;
			}
		} else if (fstab_style) {
			for (i = 0; i < mntsize; i++) {
				if (checkvfsname(mntbuf[i].f_fstypename, vfslist))
					continue;
				putfsent(&mntbuf[i]);
			}
		} else {
			for (i = 0; i < mntsize; i++) {
				if (checkvfsname(mntbuf[i].f_fstypename,
				    vfslist))
					continue;
				if (!verbose &&
				    (mntbuf[i].f_flags & MNT_IGNORE) != 0)
					continue;
				prmount(&mntbuf[i]);
			}
		}
		exit(rval);
	case 1:
		if (vfslist != NULL)
			usage();

		rmslashes(*argv, *argv);
		if (init_flags & MNT_UPDATE) {
			mntfromname = NULL;
			have_fstab = 0;
			if ((mntbuf = getmntpt(*argv)) == NULL)
				errx(1, "not currently mounted %s", *argv);
			/*
			 * Only get the mntflags from fstab if both mntpoint
			 * and mntspec are identical. Also handle the special
			 * case where just '/' is mounted and 'spec' is not
			 * identical with the one from fstab ('/dev' is missing
			 * in the spec-string at boot-time).
			 */
			if ((fs = getfsfile(mntbuf->f_mntonname)) != NULL) {
				if (strcmp(fs->fs_spec,
				    mntbuf->f_mntfromname) == 0 &&
				    strcmp(fs->fs_file,
				    mntbuf->f_mntonname) == 0) {
					have_fstab = 1;
					mntfromname = mntbuf->f_mntfromname;
				} else if (argv[0][0] == '/' &&
				    argv[0][1] == '\0') {
					fs = getfsfile("/");
					have_fstab = 1;
					mntfromname = fs->fs_spec;
				}
			}
			if (have_fstab) {
				options = update_options(options, fs->fs_mntops,
				    mntbuf->f_flags);
			} else {
				mntfromname = mntbuf->f_mntfromname;
				options = update_options(options, NULL,
				    mntbuf->f_flags);
			}
			rval = mountfs(mntbuf->f_fstypename, mntfromname,
			    mntbuf->f_mntonname, init_flags, options, 0);
			break;
		}
		if ((fs = getfsfile(*argv)) == NULL &&
		    (fs = getfsspec(*argv)) == NULL)
			errx(1, "%s: unknown special file or file system",
			    *argv);
		if (BADTYPE(fs->fs_type))
			errx(1, "%s has unknown file system type",
			    *argv);
		rval = mountfs(fs->fs_vfstype, fs->fs_spec, fs->fs_file,
		    init_flags, options, fs->fs_mntops);
		break;
	case 2:
		/*
		 * If -t flag has not been specified, the path cannot be
		 * found, spec contains either a ':' or a '@', then assume
		 * that an NFS file system is being specified ala Sun.
		 * Check if the hostname contains only allowed characters
		 * to reduce false positives.  IPv6 addresses containing
		 * ':' will be correctly parsed only if the separator is '@'.
		 * The definition of a valid hostname is taken from RFC 1034.
		 */
		if (vfslist == NULL && ((ep = strchr(argv[0], '@')) != NULL ||
		    (ep = strchr(argv[0], ':')) != NULL)) {
			if (*ep == '@') {
				cp = ep + 1;
				ep = cp + strlen(cp);
			} else
				cp = argv[0];
			while (cp != ep) {
				if (!isdigit(*cp) && !isalpha(*cp) &&
				    *cp != '.' && *cp != '-' && *cp != ':')
					break;
				cp++;
			}
			if (cp == ep)
				vfstype = "nfs";
		}
		rval = mountfs(vfstype,
		    argv[0], argv[1], init_flags, options, NULL);
		break;
	default:
		usage();
		/* NOTREACHED */
	}

	/*
	 * If the mount was successfully, and done by root, tell mountd the
	 * good news.
	 */
	if (rval == 0 && getuid() == 0)
		restart_mountd();

	exit(rval);
}
示例#4
0
int
main(int argc, char **argv)
{
	const char *mntfromname, **vfslist, *vfstype;
	struct fstab *fs;
	struct statfs *mntbuf;
	FILE *mountdfp;
	pid_t pid;
	int all, ch, i, init_flags, mntsize, rval, have_fstab;
	char *options;

	all = init_flags = 0;
	options = NULL;
	vfslist = NULL;
	vfstype = "ufs";
	while ((ch = getopt(argc, argv, "adF:fo:prwt:uv")) != -1) {
		switch (ch) {
		case 'a':
			all = 1;
			break;
		case 'd':
			debug = 1;
			break;
		case 'F':
			setfstab(optarg);
			break;
		case 'f':
			init_flags |= MNT_FORCE;
			break;
		case 'o':
			if (*optarg)
				options = catopt(options, optarg);
			break;
		case 'p':
			fstab_style = 1;
			verbose = 1;
			break;
		case 'r':
			options = catopt(options, "ro");
			break;
		case 't':
			if (vfslist != NULL)
				errx(1, "only one -t option may be specified");
			vfslist = makevfslist(optarg);
			vfstype = optarg;
			break;
		case 'u':
			init_flags |= MNT_UPDATE;
			break;
		case 'v':
			verbose = 1;
			break;
		case 'w':
			options = catopt(options, "noro");
			break;
		case '?':
		default:
			usage();
			/* NOTREACHED */
		}
	}
	argc -= optind;
	argv += optind;

#define	BADTYPE(type)							\
	(strcmp(type, FSTAB_RO) &&					\
	    strcmp(type, FSTAB_RW) && strcmp(type, FSTAB_RQ))

	rval = 0;
	switch (argc) {
	case 0:
		if ((mntsize = getmntinfo(&mntbuf, MNT_NOWAIT)) == 0)
			err(1, "getmntinfo");
		if (all) {
			while ((fs = getfsent()) != NULL) {
				if (BADTYPE(fs->fs_type))
					continue;
				if (checkvfsname(fs->fs_vfstype, vfslist))
					continue;
				if (hasopt(fs->fs_mntops, "noauto"))
					continue;
				if (!(init_flags & MNT_UPDATE) &&
				    ismounted(fs, mntbuf, mntsize))
					continue;
				options = update_options(options,
				    fs->fs_mntops, mntbuf->f_flags);
				if (mountfs(fs->fs_vfstype, fs->fs_spec,
				    fs->fs_file, init_flags, options,
				    fs->fs_mntops))
					rval = 1;
			}
		} else if (fstab_style) {
			for (i = 0; i < mntsize; i++) {
				if (checkvfsname(mntbuf[i].f_fstypename, vfslist))
					continue;
				putfsent(&mntbuf[i]);
			}
		} else {
			for (i = 0; i < mntsize; i++) {
				if (checkvfsname(mntbuf[i].f_fstypename,
				    vfslist))
					continue;
				prmount(&mntbuf[i]);
			}
		}
		exit(rval);
	case 1:
		if (vfslist != NULL)
			usage();

		rmslashes(*argv, *argv);

		if (init_flags & MNT_UPDATE) {
			mntfromname = NULL;
			have_fstab = 0;
			if ((mntbuf = getmntpt(*argv)) == NULL)
				errx(1, "not currently mounted %s", *argv);
			/*
			 * Only get the mntflags from fstab if both mntpoint
			 * and mntspec are identical. Also handle the special
			 * case where just '/' is mounted and 'spec' is not
			 * identical with the one from fstab ('/dev' is missing
			 * in the spec-string at boot-time).
			 */
			if ((fs = getfsfile(mntbuf->f_mntonname)) != NULL) {
				if (strcmp(fs->fs_spec,
				    mntbuf->f_mntfromname) == 0 &&
				    strcmp(fs->fs_file,
				    mntbuf->f_mntonname) == 0) {
					have_fstab = 1;
					mntfromname = mntbuf->f_mntfromname;
				} else if (argv[0][0] == '/' &&
				    argv[0][1] == '\0') {
					fs = getfsfile("/");
					have_fstab = 1;
					mntfromname = fs->fs_spec;
				}
			}
			if (have_fstab) {
				options = update_options(options, fs->fs_mntops,
				    mntbuf->f_flags);
			} else {
				mntfromname = mntbuf->f_mntfromname;
				options = update_options(options, NULL,
				    mntbuf->f_flags);
			}
			rval = mountfs(mntbuf->f_fstypename, mntfromname,
			    mntbuf->f_mntonname, init_flags, options, 0);
			break;
		}
		if ((fs = getfsfile(*argv)) == NULL &&
		    (fs = getfsspec(*argv)) == NULL)
			errx(1, "%s: unknown special file or file system",
			    *argv);
		if (BADTYPE(fs->fs_type))
			errx(1, "%s has unknown file system type",
			    *argv);
		rval = mountfs(fs->fs_vfstype, fs->fs_spec, fs->fs_file,
		    init_flags, options, fs->fs_mntops);
		break;
	case 2:
		/*
		 * If -t flag has not been specified, the path cannot be
		 * found.
		 *
		 * If the spec is not a file and contains a ':' then assume
		 * NFS.
		 *
		 * If the spec is a cdev attempt to extract the fstype from
		 * the label.
		 *
		 * When all else fails ufs is assumed.
		 */
		if (vfslist == NULL) {
			if (strpbrk(argv[0], ":") != NULL &&
			    access(argv[0], 0) == -1) {
				vfstype = "nfs";
			} else {
				checkdisklabel(argv[0], &vfstype);
			}
		}

		rval = mountfs(vfstype, getdevpath(argv[0], 0), argv[1],
			       init_flags, options, NULL);
		break;
	default:
		usage();
		/* NOTREACHED */
	}

	/*
	 * If the mount was successfully, and done by root, tell mountd the
	 * good news.  Pid checks are probably unnecessary, but don't hurt.
	 */
	if (rval == 0 && getuid() == 0 &&
	    (mountdfp = fopen(_PATH_MOUNTDPID, "r")) != NULL) {
		if (fscanf(mountdfp, "%d", &pid) == 1 &&
		     pid > 0 && kill(pid, SIGHUP) == -1 && errno != ESRCH)
			err(1, "signal mountd");
		fclose(mountdfp);
	}

	exit(rval);
}
示例#5
0
int
main(int argc, char **argv)
{
	struct fstab *fsp;
	char *ptr;
	int ret;
	int ch, doall;
	int sflag = 0, lflag = 0, hflag = 0, qflag = 0;
	const char *etc_fstab;

	if ((ptr = strrchr(argv[0], '/')) == NULL)
		ptr = argv[0];
	if (strstr(ptr, "swapon"))
		which_prog = SWAPON;
	else if (strstr(ptr, "swapoff"))
		which_prog = SWAPOFF;
	orig_prog = which_prog;
	
	doall = 0;
	etc_fstab = NULL;
	while ((ch = getopt(argc, argv, "AadghklmqsUF:")) != -1) {
		switch(ch) {
		case 'A':
			if (which_prog == SWAPCTL) {
				doall = 1;
				which_prog = SWAPON;
			} else {
				usage();
			}
			break;
		case 'a':
			if (which_prog == SWAPON || which_prog == SWAPOFF)
				doall = 1;
			else
				which_prog = SWAPON;
			break;
		case 'd':
			if (which_prog == SWAPCTL)
				which_prog = SWAPOFF;
			else
				usage();
			break;
		case 'g':
			hflag = 'G';
			break;
		case 'h':
			hflag = 'H';
			break;
		case 'k':
			hflag = 'K';
			break;
		case 'l':
			lflag = 1;
			break;
		case 'm':
			hflag = 'M';
			break;
		case 'q':
			if (which_prog == SWAPON || which_prog == SWAPOFF)
				qflag = 1;
			break;
		case 's':
			sflag = 1;
			break;
		case 'U':
			if (which_prog == SWAPCTL) {
				doall = 1;
				which_prog = SWAPOFF;
			} else {
				usage();
			}
			break;
		case 'F':
			etc_fstab = optarg;
			break;
		case '?':
		default:
			usage();
		}
	}
	argv += optind;

	ret = 0;
	if (etc_fstab != NULL)
		setfstab(etc_fstab);
	if (which_prog == SWAPON || which_prog == SWAPOFF) {
		if (doall) {
			while ((fsp = getfsent()) != NULL) {
				if (strcmp(fsp->fs_type, FSTAB_SW))
					continue;
				if (strstr(fsp->fs_mntops, "noauto"))
					continue;
				if (swap_on_off(fsp->fs_spec, 1)) {
					ret = 1;
				} else {
					if (!qflag) {
						printf("%s: %sing %s as swap device\n",
						    getprogname(),
						    which_prog == SWAPOFF ? "remov" : "add",
						    fsp->fs_spec);
					}
				}
			}
		}
		else if (!*argv)
			usage();
		for (; *argv; ++argv) {
			if (swap_on_off(*argv, 0)) {
				ret = 1;
			} else if (orig_prog == SWAPCTL) {
				printf("%s: %sing %s as swap device\n",
				    getprogname(), which_prog == SWAPOFF ? "remov" : "add",
				    *argv);
			}
		}
	} else {
		if (lflag || sflag)
			swaplist(lflag, sflag, hflag);
		else 
			usage();
	}
	exit(ret);
}
示例#6
0
int
main(int argc, char *argv[])
{
	int all, errs, ch, mntsize, error;
	char **typelist = NULL;
	struct statfs *mntbuf, *sfs;
	struct addrinfo hints;

	all = errs = 0;
	while ((ch = getopt(argc, argv, "AaF:fh:t:v")) != -1)
		switch (ch) {
		case 'A':
			all = 2;
			break;
		case 'a':
			all = 1;
			break;
		case 'F':
			setfstab(optarg);
			break;
		case 'f':
			fflag = MNT_FORCE;
			break;
		case 'h':	/* -h implies -A. */
			all = 2;
			nfshost = optarg;
			break;
		case 't':
			if (typelist != NULL)
				err(1, "only one -t option may be specified");
			typelist = makevfslist(optarg);
			break;
		case 'v':
			vflag = 1;
			break;
		default:
			usage();
			/* NOTREACHED */
		}
	argc -= optind;
	argv += optind;

	/* Start disks transferring immediately. */
	if ((fflag & MNT_FORCE) == 0)
		sync();

	if ((argc == 0 && !all) || (argc != 0 && all))
		usage();

	/* -h implies "-t nfs" if no -t flag. */
	if ((nfshost != NULL) && (typelist == NULL))
		typelist = makevfslist("nfs");

	if (nfshost != NULL) {
		memset(&hints, 0, sizeof hints);
		error = getaddrinfo(nfshost, NULL, &hints, &nfshost_ai);
		if (error)
			errx(1, "%s: %s", nfshost, gai_strerror(error));
	}

	switch (all) {
	case 2:
		if ((mntsize = mntinfo(&mntbuf)) <= 0)
			break;
		/*
		 * We unmount the nfs-mounts in the reverse order
		 * that they were mounted.
		 */
		for (errs = 0, mntsize--; mntsize > 0; mntsize--) {
			sfs = &mntbuf[mntsize];
			if (checkvfsname(sfs->f_fstypename, typelist))
				continue;
			if (strcmp(sfs->f_mntonname, "/dev") == 0)
				continue;
			if (umountfs(sfs) != 0)
				errs = 1;
		}
		free(mntbuf);
		break;
	case 1:
		if (setfsent() == 0)
			err(1, "%s", getfstab());
		errs = umountall(typelist);
		break;
	case 0:
		for (errs = 0; *argv != NULL; ++argv)
			if (checkname(*argv, typelist) != 0)
				errs = 1;
		break;
	}
	exit(errs);
}
示例#7
0
int
main(int argc, char *argv[])
{
	int all, errs, ch, mntsize, error, nfsforce, ret;
	char **typelist = NULL;
	struct statfs *mntbuf, *sfs;
	struct addrinfo hints;

	nfsforce = all = errs = 0;
	while ((ch = getopt(argc, argv, "AaF:fh:Nnt:v")) != -1)
		switch (ch) {
		case 'A':
			all = 2;
			break;
		case 'a':
			all = 1;
			break;
		case 'F':
			setfstab(optarg);
			break;
		case 'f':
			fflag |= MNT_FORCE;
			break;
		case 'h':	/* -h implies -A. */
			all = 2;
			nfshost = optarg;
			break;
		case 'N':
			nfsforce = 1;
			break;
		case 'n':
			fflag |= MNT_NONBUSY;
			break;
		case 't':
			if (typelist != NULL)
				err(1, "only one -t option may be specified");
			typelist = makevfslist(optarg);
			break;
		case 'v':
			vflag = 1;
			break;
		default:
			usage();
			/* NOTREACHED */
		}
	argc -= optind;
	argv += optind;

	if ((fflag & MNT_FORCE) != 0 && (fflag & MNT_NONBUSY) != 0)
		err(1, "-f and -n are mutually exclusive");

	/* Start disks transferring immediately. */
	if ((fflag & (MNT_FORCE | MNT_NONBUSY)) == 0 && nfsforce == 0)
		sync();

	if ((argc == 0 && !all) || (argc != 0 && all))
		usage();

	if (nfsforce != 0 && (argc == 0 || nfshost != NULL || typelist != NULL))
		usage();

	/* -h implies "-t nfs" if no -t flag. */
	if ((nfshost != NULL) && (typelist == NULL))
		typelist = makevfslist("nfs");

	if (nfshost != NULL) {
		memset(&hints, 0, sizeof hints);
		error = getaddrinfo(nfshost, NULL, &hints, &nfshost_ai);
		if (error)
			errx(1, "%s: %s", nfshost, gai_strerror(error));
	}

	switch (all) {
	case 2:
		if ((mntsize = mntinfo(&mntbuf)) <= 0)
			break;
		/*
		 * We unmount the nfs-mounts in the reverse order
		 * that they were mounted.
		 */
		for (errs = 0, mntsize--; mntsize > 0; mntsize--) {
			sfs = &mntbuf[mntsize];
			if (checkvfsname(sfs->f_fstypename, typelist))
				continue;
			if (strcmp(sfs->f_mntonname, "/dev") == 0)
				continue;
			if (umountfs(sfs) != 0)
				errs = 1;
		}
		free(mntbuf);
		break;
	case 1:
		if (setfsent() == 0)
			err(1, "%s", getfstab());
		errs = umountall(typelist);
		break;
	case 0:
		for (errs = 0; *argv != NULL; ++argv)
			if (nfsforce != 0) {
				/*
				 * First do the nfssvc() syscall to shut down
				 * the mount point and then do the forced
				 * dismount.
				 */
				ret = nfssvc(NFSSVC_FORCEDISM, *argv);
				if (ret >= 0)
					ret = unmount(*argv, MNT_FORCE);
				if (ret < 0) {
					warn("%s", *argv);
					errs = 1;
				}
			} else if (checkname(*argv, typelist) != 0)
				errs = 1;
		break;
	}
	exit(errs);
}