diff -r 46fd786b5562 -r 69fad9bdafc0 lib/blkid/getsize.c
--- a/lib/blkid/getsize.c	Mon May 29 11:47:49 2006 -0400
+++ b/lib/blkid/getsize.c	Tue May 30 00:54:49 2006 +0200
@@ -121,6 +121,12 @@ blkid_loff_t blkid_get_dev_size(int fd)
 	if (ioctl(fd, BLKGETSIZE, &size) >= 0)
 		return (blkid_loff_t)size << 9;
 #endif
+
+/* tested on FreeBSD 6.1-RELEASE i386 */
+#ifdef DIOCGMEDIASIZE
+	if (ioctl(fd, DIOCGMEDIASIZE, &size64) >= 0)
+		return (off_t)size64;
+#endif /* DIOCGMEDIASIZE */
 
 #ifdef FDGETPRM
 	if (ioctl(fd, FDGETPRM, &this_floppy) >= 0)