new ctrl to retrive value of received temporary key in server key exchange message, print out details in s_client

(backport from HEAD)

1 files changed, 37 insertions, 0 deletions

diff --git a/ssl/s3_lib.c b/ssl/s3_lib.c
index 177511da68..088ca05e67 100644
--- a/ssl/s3_lib.c
+++ b/ssl/s3_lib.c
@@ -3477,6 +3477,43 @@ long ssl3_ctrl(SSL *s, int cmd, long larg, void *parg)
 		else
 			return 0;
 
+	case SSL_CTRL_GET_SERVER_TMP_KEY:
+		if (s->server || !s->session || !s->session->sess_cert)
+			return 0;
+		else
+			{
+			SESS_CERT *sc;
+			EVP_PKEY *ptmp;
+			int rv = 0;
+			sc = s->session->sess_cert;
+			if (!sc->peer_rsa_tmp && !sc->peer_dh_tmp
+							&& !sc->peer_ecdh_tmp)
+				return 0;
+			ptmp = EVP_PKEY_new();
+			if (!ptmp)
+				return 0;
+			if (0);
+#ifndef OPENSSL_NO_RSA
+			else if (sc->peer_rsa_tmp)
+				rv = EVP_PKEY_set1_RSA(ptmp, sc->peer_rsa_tmp);
+#endif
+#ifndef OPENSSL_NO_DH
+			else if (sc->peer_dh_tmp)
+				rv = EVP_PKEY_set1_DH(ptmp, sc->peer_dh_tmp);
+#endif
+#ifndef OPENSSL_NO_ECDH
+			else if (sc->peer_ecdh_tmp)
+				rv = EVP_PKEY_set1_EC_KEY(ptmp, sc->peer_ecdh_tmp);
+#endif
+			if (rv)
+				{
+				*(EVP_PKEY **)parg = ptmp;
+				return 1;
+				}
+			EVP_PKEY_free(ptmp);
+			return 0;
+			}
+
 	default:
 		break;
 		}