174 lines
5.3 KiB
C
174 lines
5.3 KiB
C
// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF
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// ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO
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// THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A
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// PARTICULAR PURPOSE.
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//
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// Copyright (c) Microsoft Corporation. All rights reserved.
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/****************************************************************************
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Microsoft RPC
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umarsh Example
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FILE: umarshcu.c
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PURPOSE: Utility functions used by client side of the RPC
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distributed application.
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This sample demonstrates the represent_as attribute.
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RELATED: umarshs.c - server main
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umarshp.c - remote procedures
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umarshc.c - client main
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FUNCTIONS: WCHAR_STRING_to_local - convert WCHAR_STRING to CHAR_STRING
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WCHAR_STRING_from_local - convert WCHAR_STRING from CHAR_STRING
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WCHAR_STRING_free_inst - free WCHAR_STRING memory
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WCHAR_STRING_free_local - free CHAR_STRING memory
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midl_user_allocate - user-supplied memory allocator
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midl_user_free - user-supplied routine to free memory
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COMMENTS: This sample program generates a client and server can share
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an interface, but one side can use a different representation
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than the other.
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The client side in this example does all operations using
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character strings, and the server side does all operations
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using UNICODE strings. Two procedures are provided, one
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defined with ASCII strings, one with UNICODE strings.
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The wire format reflects these definitions, yet the client
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and server see pure ASCII and pure UNICODE respectively.
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The [represent_as] attribute (used in the client and server
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side acf files) requires the four user-supplied functions
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whose names start with the name of the transmitted type
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(in the client side's case: WCHAR_STRING)
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The [in, out] attributes applied to remote procedure
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parameters require the two user-supplied functions
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midl_user_allocate and midl_user_free.
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The other functions are utilities that are used to
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build or display the data structures.
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****************************************************************************/
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#include <stdlib.h>
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#include <stdio.h>
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#include "umarshc.h" // header file generated by MIDL compiler for client
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// Calculate size that converted data will
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// require in the buffer
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unsigned long __RPC_USER CHAR_STRING_UserSize(
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ULONG __RPC_FAR * pulFlags,
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unsigned long startingSize,
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CHAR_STRING __RPC_FAR * pWire){
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return startingSize + sizeof(WCHAR_STRING);
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}
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unsigned char * __RPC_USER CHAR_STRING_UserMarshal(
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ULONG __RPC_FAR *pulFlags,
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unsigned char __RPC_FAR * pBufferStart,
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CHAR_STRING __RPC_FAR * pStr){
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unsigned char __RPC_FAR * pCurBuffer = pBufferStart;
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size_t uSize;
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mbstowcs_s(&uSize,(wchar_t *)pBufferStart,sizeof(WCHAR_STRING), *pStr, sizeof(WCHAR_STRING) );
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((wchar_t *)pCurBuffer) += STRING_SIZE;
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return pCurBuffer;
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}
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unsigned char * __RPC_USER CHAR_STRING_UserUnmarshal(
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ULONG __RPC_FAR * pulFlags,
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unsigned char __RPC_FAR * pBufferStart,
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CHAR_STRING __RPC_FAR * pStr){
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size_t uSize;
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unsigned char __RPC_FAR * pCurBuffer = pBufferStart;
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wcstombs_s(&uSize,*pStr, sizeof(CHAR_STRING), (wchar_t *)pBufferStart, sizeof(CHAR_STRING) );
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((wchar_t *)pCurBuffer) += STRING_SIZE;
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return pCurBuffer;
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}
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void __RPC_USER CHAR_STRING_UserFree(
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ULONG __RPC_FAR * pulFlags,
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CHAR_STRING __RPC_FAR * pStr){
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//free(pStr);
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}
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// Calculate size that converted data will
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// require in the buffer
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unsigned long __RPC_USER CHAR_STRING_UserSize64(
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ULONG __RPC_FAR * pulFlags,
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unsigned long startingSize,
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CHAR_STRING __RPC_FAR * pWire){
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return startingSize + sizeof(WCHAR_STRING);
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}
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unsigned char * __RPC_USER CHAR_STRING_UserMarshal64(
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ULONG __RPC_FAR *pulFlags,
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unsigned char __RPC_FAR * pBufferStart,
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CHAR_STRING __RPC_FAR * pStr){
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unsigned char __RPC_FAR * pCurBuffer = pBufferStart;
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size_t uSize;
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mbstowcs_s(&uSize,(wchar_t *)pBufferStart,sizeof(WCHAR_STRING), *pStr, sizeof(WCHAR_STRING) );
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((wchar_t *)pCurBuffer) += STRING_SIZE;
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return pCurBuffer;
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}
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unsigned char * __RPC_USER CHAR_STRING_UserUnmarshal64(
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ULONG __RPC_FAR * pulFlags,
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unsigned char __RPC_FAR * pBufferStart,
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CHAR_STRING __RPC_FAR * pStr){
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size_t uSize;
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unsigned char __RPC_FAR * pCurBuffer = pBufferStart;
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wcstombs_s(&uSize,*pStr, sizeof(CHAR_STRING), (wchar_t *)pBufferStart, sizeof(CHAR_STRING) );
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((wchar_t *)pCurBuffer) += STRING_SIZE;
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return pCurBuffer;
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}
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void __RPC_USER CHAR_STRING_UserFree64(
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ULONG __RPC_FAR * pulFlags,
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CHAR_STRING __RPC_FAR * pStr){
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//free(pStr);
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}
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/***************************************************************************/
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void __RPC_FAR * __RPC_USER midl_user_allocate(size_t len)
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{
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return(malloc(len));
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}
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void __RPC_USER midl_user_free(void __RPC_FAR * ptr)
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{
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free(ptr);
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}
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/***************************************************************************/
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/* end file umarshcu.c */
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