--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/g23m-fad/tcpip/rnet/rnet_rt/rnet_rt_api_getproto.c	Sun Jul 15 04:40:46 2018 +0000
@@ -0,0 +1,66 @@
+/**
+ * @file    rnet_rt_api_getproto.c
+ *
+ * RNET_RT API
+ *
+ * @author  Regis Feneon
+ * @version 0.1
+ */
+
+/*
+ * $Id: rnet_rt_api_getproto.c,v 1.3 2002/10/30 15:23:34 rf Exp $
+ * $Name: ti_20021030 $
+ *
+ * History:
+ *
+ *  Date        Author        Modification
+ *  --------------------------------------------------
+ *  3/29/2002   Regis Feneon  Create
+ *
+ * (C) Copyright 2002 by TI, All Rights Reserved
+ *
+ */
+
+#include "rnet_cfg.h"
+#ifdef RNET_CFG_REAL_TRANSPORT
+
+#include "rnet_rt_i.h"
+#include "rnet_rt_env.h"
+
+/*
+ * Retrieves the protocol associated to a connection descriptor.
+ * The protocol is retrieved with the SO_TYPE socket option.
+ *
+ * @param  desc  Connection identifier.
+ * @return  A value of the T_RNET_IPPROTO enumeration.
+ */
+
+T_RNET_IPPROTO rnet_rt_get_proto (T_RNET_DESC *desc)
+{
+  int err, len, type;
+
+  len = sizeof( type);
+
+  /* get type of socket */
+  rvf_lock_mutex( &rnet_rt_env_ctrl_blk_p->mutex);
+  err = ngSAIOGetOption( (NGsock *) desc, NG_IOCTL_SOCKET, NG_SO_TYPE,
+    &type, &len);
+  rvf_unlock_mutex( &rnet_rt_env_ctrl_blk_p->mutex);
+
+  if( err == NG_EOK) {
+    switch( type) {
+    case NG_SOCK_STREAM:
+      return( RNET_IPPROTO_TCP);
+    case NG_SOCK_DGRAM:
+      return( RNET_IPPROTO_UDP);
+    default:
+      break;
+    }
+  }
+
+  /* should not happen... */
+  return( RNET_IPPROTO_UNDEFINED);
+}
+
+#endif /* ifdef RNET_CFG_REAL_TRANSPORT */
+