99 lines
1.7 KiB
C
99 lines
1.7 KiB
C
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/*++
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Copyright (c) 1996 Microsoft Corporation
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Module Name:
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rpc.c
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Abstract:
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Handy utility functions for supporting RPC
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Author:
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John Vert (jvert) 2-Jan-1996
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Revision History:
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--*/
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#include "clusrtlp.h"
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#include "rpc.h"
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void __RPC_FAR * __RPC_API MIDL_user_allocate(size_t len)
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{
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return(LocalAlloc(LMEM_FIXED, len));
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}
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void __RPC_API MIDL_user_free(void __RPC_FAR * ptr)
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{
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LocalFree(ptr);
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}
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LPWSTR
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ClRtlMakeGuid(
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VOID
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)
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/*++
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Routine Description:
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Creates a new GUID in string form.
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Arguments:
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None.
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Return Value:
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A pointer to the GUID string if successful.
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NULL if unsuccessful.
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Notes:
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The storage for the GUID string must be freed by the caller.
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Sometimes, the GUID storage is copied to a buffer that is
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allocated using another allocator. At that point, the free
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routines can't tell where free method to call. Sometimes this
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causes a problem. To get around this problem, antoher buffer
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is allocated such that the free methods will always work.
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--*/
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{
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DWORD sc;
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UUID guid;
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LPWSTR guidString = NULL;
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LPWSTR guidBuffer = NULL;
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sc = UuidCreate( &guid );
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if ( ( sc != RPC_S_OK ) && ( sc != RPC_S_UUID_LOCAL_ONLY ) )
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goto Error;
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sc = UuidToString( &guid, &guidString );
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if ( sc != RPC_S_OK )
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goto Error;
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guidBuffer = LocalAlloc( LMEM_FIXED, ( wcslen( guidString ) + 1 ) * sizeof( WCHAR ) );
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if ( guidBuffer == NULL )
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goto Error;
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wcscpy( guidBuffer, guidString );
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goto Cleanup;
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Error:
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SetLastError( sc );
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Cleanup:
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if ( guidString != NULL )
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{
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RpcStringFree( &guidString );
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} // if:
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return( guidBuffer );
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} // ClRtlMakeGuid
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