cvs_log(LP_ERR, "failed to reallocate RCSNUM");
rcs_errno = RCS_ERR_ERRNO;
rcsnum_cpy(const RCSNUM *nsrc, RCSNUM *ndst, u_int depth){	u_int len;	size_t sz;	void *tmp;	len = nsrc->rn_len;	if ((depth != 0) && (len > depth))		len = depth;	sz = len * sizeof(u_int16_t);	tmp = realloc(ndst->rn_id, sz);	if (tmp == NULL) {		cvs_log(LP_ERR, "failed to reallocate RCSNUM");		return (-1);	}	ndst->rn_id = (u_int16_t *)tmp;	ndst->rn_len = len;	memcpy(ndst->rn_id, nsrc->rn_id, sz);	return (0);}