176     PROV_ECDH_CTX *srcctx = (PROV_ECDH_CTX *)vpecdhctx;  in ecdh_dupctx()  local
182     dstctx = OPENSSL_zalloc(sizeof(*srcctx));  in ecdh_dupctx()
186     *dstctx = *srcctx;  in ecdh_dupctx()
197     if (srcctx->k != NULL && !EC_KEY_up_ref(srcctx->k))  in ecdh_dupctx()
200         dstctx->k = srcctx->k;  in ecdh_dupctx()
202     if (srcctx->peerk != NULL && !EC_KEY_up_ref(srcctx->peerk))  in ecdh_dupctx()
205         dstctx->peerk = srcctx->peerk;  in ecdh_dupctx()
207     if (srcctx->kdf_md != NULL && !EVP_MD_up_ref(srcctx->kdf_md))  in ecdh_dupctx()
210         dstctx->kdf_md = srcctx->kdf_md;  in ecdh_dupctx()
213     if (srcctx->kdf_ukm != NULL && srcctx->kdf_ukmlen > 0) {  in ecdh_dupctx()
214         dstctx->kdf_ukm = OPENSSL_memdup(srcctx->kdf_ukm,  in ecdh_dupctx()
215                                          srcctx->kdf_ukmlen);  in ecdh_dupctx()