static int
devfs_read(struct vnop_read_args *ap)
/* struct vnop_read_args {
struct vnode *a_vp;
struct uio *a_uio;
int a_ioflag;
vfs_context_t a_context;
} */
{
devnode_t * dn_p = VTODN(ap->a_vp);
switch (ap->a_vp->v_type) {
case VDIR: {
dn_p->dn_access = 1;
return VNOP_READDIR(ap->a_vp, ap->a_uio, 0, NULL, NULL, ap->a_context);
}
default: {
printf("devfs_read(): bad file type %d", ap->a_vp->v_type);
return(EINVAL);
break;
}
}
return (0); /* not reached */
}
static int
nullfs_readdir(struct vnop_readdir_args * ap)
{
struct vnode *vp, *lvp;
int error;
struct null_mount * null_mp = MOUNTTONULLMOUNT(vnode_mount(ap->a_vp));
NULLFSDEBUG("%s %p\n", __FUNCTION__, ap->a_vp);
/* assumption is that any vp that comes through here had to go through lookup
*/
lck_mtx_lock(&null_mp->nullm_lock);
if (nullfs_isspecialvp(ap->a_vp)) {
error = nullfs_special_readdir(ap);
lck_mtx_unlock(&null_mp->nullm_lock);
return error;
}
lck_mtx_unlock(&null_mp->nullm_lock);
vp = ap->a_vp;
lvp = NULLVPTOLOWERVP(vp);
error = vnode_getwithref(lvp);
if (error == 0) {
error = VNOP_READDIR(lvp, ap->a_uio, ap->a_flags, ap->a_eofflag, ap->a_numdirent, ap->a_context);
vnode_put(lvp);
}
return error;
}
