/* good, this is a vnode; next see if it is an AFS vnode */
#if defined(AFS_AIX32_ENV) || defined(AFS_SUN5_ENV)
tvc = VTOAFS(fd->f_vnode); /* valid, given a vnode */
+#elif defined(AFS_OBSD_ENV)
+ tvc = IsAfsVnode((struct vnode *) fd->f_data) ?
+ VTOAFS((struct vnode *) fd->f_data) : NULL;
#else
tvc = VTOAFS((struct vnode*)fd->f_data); /* valid, given a vnode */
#endif