diff --git a/exfat/exfat-fuse/main.c b/exfat/exfat-fuse/main.c
index 0023b9d..53ce2fe 100644
--- a/exfat/exfat-fuse/main.c
+++ b/exfat/exfat-fuse/main.c
@@ -92,7 +92,7 @@
 	struct exfat_node* node;
 	struct exfat_iterator it;
 	int rc;
-	char name[EXFAT_NAME_MAX + 1];
+	char name[UTF8_BYTES(EXFAT_NAME_MAX) + 1];
 
 	exfat_debug("[%s] %s", __func__, path);
 
@@ -118,7 +118,7 @@
 	}
 	while ((node = exfat_readdir(&ef, &it)))
 	{
-		exfat_get_name(node, name, EXFAT_NAME_MAX);
+		exfat_get_name(node, name, sizeof(name) - 1);
 		exfat_debug("[%s] %s: %s, %"PRId64" bytes, cluster 0x%x", __func__,
 				name, IS_CONTIGUOUS(*node) ? "contiguous" : "fragmented",
 				node->size, node->start_cluster);
@@ -242,14 +242,24 @@
 	return 0;
 }
 
-#ifdef __APPLE__
 static int fuse_exfat_chmod(const char* path, mode_t mode)
 {
+	const mode_t VALID_MODE_MASK = S_IFREG | S_IFDIR |
+			S_IRWXU | S_IRWXG | S_IRWXO;
+
 	exfat_debug("[%s] %s 0%ho", __func__, path, mode);
-	/* make OS X utilities happy */
+	if (mode & ~VALID_MODE_MASK)
+		return -EPERM;
 	return 0;
 }
-#endif
+
+static int fuse_exfat_chown(const char* path, uid_t uid, gid_t gid)
+{
+	exfat_debug("[%s] %s %u:%u", __func__, path, uid, gid);
+	if (uid != ef.uid || gid != ef.gid)
+		return -EPERM;
+	return 0;
+}
 
 static int fuse_exfat_statfs(const char* path, struct statvfs* sfs)
 {
@@ -292,7 +302,7 @@
 
 static void usage(const char* prog)
 {
-	fprintf(stderr, "Usage: %s [-d] [-o options] [-v] <device> <dir>\n", prog);
+	fprintf(stderr, "Usage: %s [-d] [-o options] [-V] <device> <dir>\n", prog);
 	exit(1);
 }
 
@@ -311,9 +321,8 @@
 	.mkdir		= fuse_exfat_mkdir,
 	.rename		= fuse_exfat_rename,
 	.utimens	= fuse_exfat_utimens,
-#ifdef __APPLE__
 	.chmod		= fuse_exfat_chmod,
-#endif
+	.chown		= fuse_exfat_chown,
 	.statfs		= fuse_exfat_statfs,
 	.init		= fuse_exfat_init,
 	.destroy	= fuse_exfat_destroy,
@@ -398,7 +407,7 @@
 	int debug = 0;
 	struct fuse_chan* fc = NULL;
 	struct fuse* fh = NULL;
-	char** pp;
+	int opt;
 
 	printf("FUSE exfat %u.%u.%u\n",
 			EXFAT_VERSION_MAJOR, EXFAT_VERSION_MINOR, EXFAT_VERSION_PATCH);
@@ -410,40 +419,39 @@
 		return 1;
 	}
 
-	for (pp = argv + 1; *pp; pp++)
+	while ((opt = getopt(argc, argv, "dno:Vv")) != -1)
 	{
-		if (strcmp(*pp, "-o") == 0)
+		switch (opt)
 		{
-			pp++;
-			if (*pp == NULL)
-				usage(argv[0]);
-			mount_options = add_option(mount_options, *pp, NULL);
+		case 'd':
+			debug = 1;
+			break;
+		case 'n':
+			break;
+		case 'o':
+			mount_options = add_option(mount_options, optarg, NULL);
 			if (mount_options == NULL)
 				return 1;
-		}
-		else if (strcmp(*pp, "-d") == 0)
-			debug = 1;
-		else if (strcmp(*pp, "-v") == 0)
-		{
+			break;
+		case 'V':
 			free(mount_options);
 			puts("Copyright (C) 2010-2013  Andrew Nayenko");
 			return 0;
-		}
-		else if (spec == NULL)
-			spec = *pp;
-		else if (mount_point == NULL)
-			mount_point = *pp;
-		else
-		{
+		case 'v':
+			break;
+		default:
 			free(mount_options);
 			usage(argv[0]);
+			break;
 		}
 	}
-	if (spec == NULL || mount_point == NULL)
+	if (argc - optind != 2)
 	{
 		free(mount_options);
 		usage(argv[0]);
 	}
+	spec = argv[optind];
+	mount_point = argv[optind + 1];
 
 	if (exfat_mount(&ef, spec, mount_options) != 0)
 	{
diff --git a/exfat/exfat-fuse/mount.exfat-fuse.8 b/exfat/exfat-fuse/mount.exfat-fuse.8
index 83d2e63..b7e9d56 100644
--- a/exfat/exfat-fuse/mount.exfat-fuse.8
+++ b/exfat/exfat-fuse/mount.exfat-fuse.8
@@ -9,10 +9,16 @@
 .B \-d
 ]
 [
+.B \-n
+]
+[
 .B \-o
 .I options
 ]
 [
+.B \-V
+]
+[
 .B \-v
 ]
 .I device dir
@@ -21,7 +27,7 @@
 .B mount.exfat-fuse
 is a free exFAT file system implementation with write support. exFAT is a
 simple file system created by Microsoft. It is intended to replace FAT32
-removing some of it's limitations. exFAT is a standard FS for SDXC memory
+removing some of its limitations. exFAT is a standard FS for SDXC memory
 cards.
 
 .SH COMMAND LINE OPTIONS
@@ -30,13 +36,19 @@
 .BI \-d
 Enable debug logging and do not detach from shell.
 .TP
+.BI \-n
+Ignored.
+.TP
 .BI \-o " options"
 File system specific options. For more details see
 .B FILE SYSTEM OPTIONS
 section below.
 .TP
-.BI \-v
+.BI \-V
 Print version and copyright.
+.TP
+.BI \-v
+Ignored.
 
 .SH FILE SYSTEM OPTIONS
 .TP