ObjFW  Diff

	OFMD5Hash  *md5  = [OFMD5Hash new];
	OFSHA1Hash *sha1 = [OFSHA1Hash new];
	OFFile *f = [OFFile newWithPath: "testfile"
				andMode: "rb"];

	while (![f atEndOfFile]) {
		len = [f readIntoBuffer: buf
			       withSize: 1
		len = [f readNBytes: 64
			 intoBuffer: buf];
			      andNItems: 64];
		[md5 updateWithBuffer: buf
			       ofSize: len];
		[sha1 updateWithBuffer: buf
				ofSize: len];
	}
	[f free];