1999-03-07 Mark Kettenis <kettenis@gnu.org>
[kopensolaris-gnu/glibc.git] / resolv / inet_addr.c
index 0d3ba06..a5667eb 100644 (file)
@@ -187,19 +187,20 @@ inet_aton(cp, addr)
                break;
 
        case 2:                         /* a.b -- 8.24 bits */
-               if (val > 0xffffff)
+               if (parts[0] > 0xff || val > 0xffffff)
                        goto ret_0;
                val |= parts[0] << 24;
                break;
 
        case 3:                         /* a.b.c -- 8.8.16 bits */
-               if (val > 0xffff)
+               if (parts[0] > 0xff || parts[1] > 0xff || val > 0xffff)
                        goto ret_0;
                val |= (parts[0] << 24) | (parts[1] << 16);
                break;
 
        case 4:                         /* a.b.c.d -- 8.8.8.8 bits */
-               if (val > 0xff)
+               if (parts[0] > 0xff || parts[1] > 0xff || parts[2] > 0xff
+                   || val > 0xff)
                        goto ret_0;
                val |= (parts[0] << 24) | (parts[1] << 16) | (parts[2] << 8);
                break;