puffs_vnmsg_readdir
struct puffs_vnmsg_readdir *auxt = auxbuf;
preq->preq_buflen = sizeof(struct puffs_vnmsg_readdir)
struct puffs_vnmsg_readdir *readdir_msg = (void *)preq;
struct puffs_vnmsg_readdir *readdir_msg = (void *)preq;
argsize = sizeof(struct puffs_vnmsg_readdir);