@@ -89,10 +89,20 @@
 		      intoBuffer: (char*)buf
 {
 	@throw [OFNotImplementedException newWithClass: isa
 					      selector: _cmd];
 }
+
+- (void)readExactlyNBytes: (size_t)size
+	       intoBuffer: (char*)buf
+{
+	size_t len = 0;
+
+	while (len < size)
+		len += [self readNBytes: size - len
+			     intoBuffer: buf + len];
+}
 
 - (OFDataArray*)readDataArrayTillEndOfStream
 {
 	OFDataArray *a;
 	char *buf;