sockargs
error = sockargs(&nam, omsg.msg_name, omsg.msg_namelen,
error = sockargs(&m, &nam, nam.sb_len, UIO_SYSSPACE, MT_SONAME);
error = sockargs(&nam, NETBSD32PTR64(omsg.msg_name), omsg.msg_namelen,
error = sockargs(&to, mp->msg_name, mp->msg_namelen,
error = sockargs(&control, mp->msg_control,
error = sockargs(&nam, nfsdarg.name, nfsdarg.namelen,
error = sockargs(&nam, args->addr, args->addrlen, UIO_USERSPACE,
int sockargs(struct mbuf **, const void *, size_t, enum uio_seg, int);