--- a/ffstools/tiffs-rd/basics.c	Sun Jan 26 08:11:42 2014 +0000
+++ b/ffstools/tiffs-rd/basics.c	Sun Jan 26 08:42:59 2014 +0000
@@ -12,6 +12,7 @@
 #include <string.h>
 #include <strings.h>
 #include "types.h"
+#include "struct.h"
 #include "globals.h"
 
 u8 tiffs_header[6] = {'F', 'f', 's', '#', 0x10, 0x02};
@@ -136,5 +137,12 @@
 	alloc_inode_table();
 	find_root_inode();
 	printf("Root inode is #%x\n", root_inode);
-	exit(0);
+	if (validate_obj_name(root_inode, 1)) {
+		printf("Root inode (format) name: %s\n",
+			inode_info[root_inode]->dataptr);
+		exit(0);
+	} else {
+		printf("No valid name found in the root inode!\n");
+		exit(1);
+	}
 }

--- a/ffstools/tiffs-rd/inode.c	Sun Jan 26 08:11:42 2014 +0000
+++ b/ffstools/tiffs-rd/inode.c	Sun Jan 26 08:42:59 2014 +0000
@@ -4,6 +4,7 @@
 
 #include <sys/types.h>
 #include <endian.h>
+#include <ctype.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -11,6 +12,7 @@
 #include "types.h"
 #include "struct.h"
 #include "globals.h"
+#include "pathname.h"
 
 u8 blank_flash_line[16] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
 			   0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
@@ -159,3 +161,44 @@
 	fprintf(stderr, "error: no root inode found; try -r\n");
 	exit(1);
 }
+
+validate_obj_name(ino, root_special)
+{
+	struct inode_info *inf = inode_info[ino];
+	u8 *p, *endp;
+	int c;
+
+	if (!inf->len)
+		return(0);
+	p = inf->dataptr;
+	endp = p + inf->len;
+	for (; ; p++) {
+		if (p >= endp)
+			return(0);
+		c = *p;
+		if (!c)
+			break;
+		if (c < ' ' || c > '~')
+			return(0);
+		if (root_special || isalnum(c))
+			continue;
+		switch (c) {
+		case '.':
+		case ',':
+		case '_':
+		case '-':
+		case '+':
+		case '%':
+		case '$':
+		case '#':
+			continue;
+		default:
+			return(0);
+		}
+	}
+	c = p - inf->dataptr;
+	if (c < 1 || c > MAX_FN_COMPONENT && !root_special)
+		return(0);
+	inf->byte_after_name = p + 1;
+	return(1);
+}