new file mode 100644
--- /dev/null
+++ b/packages/language/c/libc/stdio/current/include/streambuf.hxx
@@ -0,0 +1,155 @@
+#ifndef CYGONCE_LIBC_STDIO_STREAMBUF_HXX
+#define CYGONCE_LIBC_STDIO_STREAMBUF_HXX
+//===========================================================================
+//
+//      streambuf.hxx
+//
+//      Internal C library stdio stream buffer interface definitions
+//
+//===========================================================================
+//####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):    jlarmour
+// Contributors: 
+// Date:         2000-04-19
+// Purpose:     
+// Description:  This file implements the buffer class used by Cyg_StdioStream
+//               for file buffers. It is simple, and not thread-safe - that
+//               is better done at a higher level for our purposes.
+// Usage:        #include <cyg/libc/stdio/streambuf.hxx>
+//
+//####DESCRIPTIONEND####
+//
+//===========================================================================
+
+// CONFIGURATION
+
+#include <pkgconf/libc_stdio.h>   // Configuration header
+
+// Include buffered I/O?
+#if defined(CYGSEM_LIBC_STDIO_WANT_BUFFERED_IO)
+
+
+// INCLUDES
+
+#include <cyg/infra/cyg_type.h>   // Common project-wide type definitions
+#include <errno.h>                // Cyg_ErrNo
+
+
+// TYPE DEFINITIONS
+
+
+class Cyg_StdioStreamBuffer
+{
+private:
+    // Buffering data
+
+#if defined(CYGSEM_LIBC_STDIO_SETVBUF_MALLOC)
+    cyg_bool call_free;  // should we free the old buffer if set_buffer is
+                         // called?
+#else 
+    cyg_uint8 static_buffer[BUFSIZ]; // Static buffer used when we cannot
+                                     // use malloc()/free().
+#endif
+
+    cyg_uint8 *buffer_bottom;
+    
+    cyg_ucount32 buffer_size;
+
+    cyg_uint8 *buffer_top;
+
+    cyg_uint8 *current_buffer_position;
+
+public:
+
+    // CONSTRUCTORS
+    
+    // You can change the size, or even supply your own buffer, although
+    // this only has an effect with dynamic buffers. Otherwise it is
+    // silently ignored
+    Cyg_StdioStreamBuffer( cyg_ucount32 size=BUFSIZ,
+                           cyg_uint8 *new_buffer=NULL );
+
+
+    // DESTRUCTORS
+
+    ~Cyg_StdioStreamBuffer();
+
+    // METHODS
+
+    // Set up the buffer. As with the constructor, supplying a new_buffer
+    // only has an effect with dynamic buffers, although EINVAL is returned
+    // in that case. ENOMEM may also be returned
+    Cyg_ErrNo
+    set_buffer( cyg_ucount32 size=BUFSIZ, cyg_uint8 *new_buffer=NULL );
+
+    // Find out how much buffer space is in use
+    cyg_ucount32
+    get_buffer_space_used( void );
+
+
+    // What total size is the current buffer set to be. Can be -1 if the
+    // the buffer is invalid
+    cyg_count32
+    get_buffer_size( void );
+
+    
+    // get buffer address to read from, and return the number of bytes
+    // available to read
+    cyg_ucount32
+    get_buffer_addr_to_read( cyg_uint8 **buffer );
+
+    // when finished reading from said space, tell the buffer how much was
+    // actually read
+    void
+    set_bytes_read( cyg_ucount32 bytes );
+
+    // return address of buffer that can be used to write into, and its
+    // available capacity
+    cyg_ucount32
+    get_buffer_addr_to_write( cyg_uint8 **buffer );
+
+    // when finished writing into said space, tell the buffer how much was
+    // actually written
+    void
+    set_bytes_written( cyg_ucount32 bytes );
+
+    // just empty the whole buffer contents
+    void
+    drain_buffer( void );
+}; // class Cyg_StdioStreamBuffer
+
+// INLINE FUNCTIONS
+
+#include <cyg/libc/stdio/streambuf.inl>
+
+
+#endif // if defined(CYGSEM_LIBC_STDIO_WANT_BUFFERED_IO)
+
+#endif CYGONCE_LIBC_STDIO_STREAMBUF_HXX multiple inclusion protection
+
+// EOF streambuf.hxx