new file mode 100644
--- /dev/null
+++ b/packages/io/fileio/current/include/sockio.h
@@ -0,0 +1,136 @@
+#ifndef CYGONCE_SOCKIO_H
+#define CYGONCE_SOCKIO_H
+//=============================================================================
+//
+//      sockio.h
+//
+//      Socket IO header
+//
+//=============================================================================
+//####COPYRIGHTBEGIN####
+//                                                                          
+// -------------------------------------------                              
+// The contents of this file are subject to the Red Hat eCos Public License 
+// Version 1.1 (the "License"); you may not use this file except in         
+// compliance with the License.  You may obtain a copy of the License at    
+// http://www.redhat.com/                                                   
+//                                                                          
+// Software distributed under the License is distributed on an "AS IS"      
+// basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.  See the 
+// License for the specific language governing rights and limitations under 
+// the License.                                                             
+//                                                                          
+// The Original Code is eCos - Embedded Configurable Operating System,      
+// released September 30, 1998.                                             
+//                                                                          
+// The Initial Developer of the Original Code is Red Hat.                   
+// Portions created by Red Hat are                                          
+// Copyright (C) 1998, 1999, 2000 Red Hat, Inc.                             
+// All Rights Reserved.                                                     
+// -------------------------------------------                              
+//                                                                          
+//####COPYRIGHTEND####
+//=============================================================================
+//#####DESCRIPTIONBEGIN####
+//
+// Author(s):     nickg
+// Contributors:  nickg
+// Date:          2000-05-25
+// Purpose:       Socket IO header
+// Description:   This header contains the external definitions of the general
+//                socket IO subsystem for POSIX and EL/IX compatability.
+//              
+// Usage:
+//              #include <sockio.h>
+//              ...
+//              
+//
+//####DESCRIPTIONEND####
+//
+//=============================================================================
+
+#include <pkgconf/hal.h>
+#include <pkgconf/kernel.h>
+#include <pkgconf/io_fileio.h>
+
+#include <cyg/infra/cyg_type.h>
+
+#include <stddef.h>             // NULL, size_t
+#include <limits.h>
+#include <sys/types.h>
+
+#include <cyg/fileio/fileio.h>
+
+//=============================================================================
+// Forward definitions
+
+struct cyg_nstab_entry;
+typedef struct cyg_nstab_entry cyg_nstab_entry;
+
+struct cyg_sock_ops;
+typedef struct cyg_sock_ops cyg_sock_ops;
+
+struct sockaddr;
+typedef struct sockaddr sockaddr;
+
+struct msghdr;
+typedef struct msghdr msghdr;
+
+#ifndef CYGPKG_NET
+
+typedef cyg_uint32      socklen_t;      /* length type for network syscalls */
+
+#endif
+
+//=============================================================================
+// network stack entry
+
+struct cyg_nstab_entry
+{
+    cyg_bool            valid;          // true if stack initialized
+    cyg_uint32          syncmode;       // synchronization protocol
+    char                *name;          // stack name
+    char                *devname;       // hardware device name
+    CYG_ADDRWORD        data;           // private data value
+
+    int     (*init)( cyg_nstab_entry *nste );
+    int     (*socket)( cyg_nstab_entry *nste, int domain, int type,
+		       int protocol, cyg_file *file );
+};
+
+#define NSTAB_ENTRY( _l, _syncmode, _name, _devname, _data, _init, _socket )    \
+struct cyg_nstab_entry _l CYG_HAL_TABLE_ENTRY(nstab) =                          \
+{                                                                               \
+    false,                                                                      \
+    _syncmode,                                                                  \
+    _name,                                                                      \
+    _devname,                                                                   \
+    _data,                                                                      \
+    _init,                                                                      \
+    _socket                                                                     \
+};
+
+//=============================================================================
+
+struct cyg_sock_ops
+{
+    int (*bind)      ( cyg_file *fp, const sockaddr *sa, socklen_t len );
+    int (*connect)   ( cyg_file *fp, const sockaddr *sa, socklen_t len );
+    int (*accept)    ( cyg_file *fp, cyg_file *new_fp,
+                       struct sockaddr *name, socklen_t *anamelen );
+    int (*listen)    ( cyg_file *fp, int len );
+    int (*getname)   ( cyg_file *fp, sockaddr *sa, socklen_t *len, int peer );
+    int (*shutdown)  ( cyg_file *fp, int flags );
+    int (*getsockopt)( cyg_file *fp, int level, int optname,
+                       void *optval, socklen_t *optlen);
+    int (*setsockopt)( cyg_file *fp, int level, int optname,
+                       const void *optval, socklen_t optlen);
+    int (*sendmsg)   ( cyg_file *fp, const struct msghdr *m,
+                       int flags, ssize_t *retsize );
+    int (*recvmsg)   ( cyg_file *fp, struct msghdr *m,
+                       socklen_t *namelen, ssize_t *retsize );
+};
+
+//-----------------------------------------------------------------------------
+#endif // ifndef CYGONCE_SOCKIO_H
+// End of sockio.h