Backport fix for mysql client not using SSl library directly

 - Add function mysql_get_ssl_cipher
 - Use function mysql_get_ssl_cipher from mysql


client/mysql.cc:
  Backport fix for mysql client not using SSl library directly
include/mysql.h:
  Backport fix for mysql client not using SSl library directly
libmysql/libmysql.def:
  Backport fix for mysql client not using SSl library directly
libmysqld/libmysqld.def:
  Backport fix for mysql client not using SSl library directly
sql-common/client.c:
  Backport fix for mysql client not using SSl library directly

client/mysql.cc

@@ -3235,10 +3235,9 @@ com_status(String *buffer __attribute__((unused)),
       mysql_free_result(result);
     } 
 #ifdef HAVE_OPENSSL
-    if (mysql.net.vio && mysql.net.vio->ssl_arg &&
-	SSL_get_cipher((SSL*) mysql.net.vio->ssl_arg))
+    if ((status= mysql_get_ssl_cipher(&mysql)))
       tee_fprintf(stdout, "SSL:\t\t\tCipher in use is %s\n",
-		  SSL_get_cipher((SSL*) mysql.net.vio->ssl_arg));
+		  status);
     else
 #endif /* HAVE_OPENSSL */
       tee_puts("SSL:\t\t\tNot in use", stdout);

include/mysql.h

@@ -409,6 +409,7 @@ MYSQL *		STDCALL mysql_init(MYSQL *mysql);
 my_bool		STDCALL mysql_ssl_set(MYSQL *mysql, const char *key,
 				      const char *cert, const char *ca,
 				      const char *capath, const char *cipher);
+const char *    STDCALL mysql_get_ssl_cipher(MYSQL *mysql);
 my_bool		STDCALL mysql_change_user(MYSQL *mysql, const char *user, 
 					  const char *passwd, const char *db);
 MYSQL *		STDCALL mysql_real_connect(MYSQL *mysql, const char *host,

libmysql/libmysql.def

@@ -65,6 +65,7 @@ EXPORTS
 	mysql_get_proto_info
 	mysql_get_server_info
 	mysql_get_client_version
+	mysql_get_ssl_cipher
 	mysql_info
 	mysql_init
 	mysql_insert_id

libmysqld/libmysqld.def

@@ -58,6 +58,7 @@ EXPORTS
 	mysql_get_host_info
 	mysql_get_proto_info
 	mysql_get_server_info
+	mysql_get_ssl_cipher
 	mysql_info
 	mysql_init
 	mysql_insert_id

sql-common/client.c

@@ -1535,6 +1535,27 @@ mysql_ssl_free(MYSQL *mysql __attribute__((unused)))
   mysql->connector_fd = 0;
   DBUG_VOID_RETURN;
 }
+
+
+/*
+  Return the SSL cipher (if any) used for current
+  connection to the server.
+
+  SYNOPSYS
+    mysql_get_ssl_cipher()
+      mysql pointer to the mysql connection
+
+*/
+
+const char * STDCALL
+mysql_get_ssl_cipher(MYSQL *mysql)
+{
+  DBUG_ENTER("mysql_get_ssl_cipher");
+  if (mysql->net.vio && mysql->net.vio->ssl_arg)
+    DBUG_RETURN(SSL_get_cipher_name((SSL*)mysql->net.vio->ssl_arg));
+  DBUG_RETURN(NULL);
+}
+
 #endif /* HAVE_OPENSSL */