139 lines
3.1 KiB
C++
139 lines
3.1 KiB
C++
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/*+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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Copyright (c) 1989 Microsoft Corporation
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Module Name:
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sh.c
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Abstract:
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stub helper routines.
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Notes:
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simple routines for handling pointer decisions, comm and fault
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status etc.
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History:
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Dec-12-1993 VibhasC Created.
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----------------------------------------------------------------------------*/
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/****************************************************************************
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* include files
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***************************************************************************/
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#include "ndrp.h"
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/****************************************************************************
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* local definitions
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***************************************************************************/
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/****************************************************************************
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* local data
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***************************************************************************/
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/****************************************************************************
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* externs
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***************************************************************************/
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/****************************************************************************/
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RPC_STATUS RPC_ENTRY
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NdrMapCommAndFaultStatus(
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/*
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Note on mapping.
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- Some errors are defined by DCE.
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These appear as mapped to DCE values on wire.
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They are mapped back to platform specific values by the rpc runtime.
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- other codes are defined by RPC runtime or by an app using rpc.
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These are not mapped, and appear both on the wire and on the client
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same as their original codes at server.
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*/
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PMIDL_STUB_MESSAGE pMessage,
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unsigned long * pComm,
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unsigned long * pFault,
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RPC_STATUS RetVal )
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{
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// For errors that are mapped through DCE values, we use constants that
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// resolve to platform specific error codes.
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// For others, we have to use absolute values as the codes on wire are NT
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// values set by RPC.
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// We don't map any app specific error codes, of course.
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//
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static long CommStatArray[] =
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{
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RPC_X_SS_CONTEXT_MISMATCH
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,RPC_S_INVALID_BINDING
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,RPC_S_UNKNOWN_IF
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,RPC_S_SERVER_UNAVAILABLE
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,RPC_S_SERVER_TOO_BUSY
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,RPC_S_CALL_FAILED_DNE
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,RPC_S_PROTOCOL_ERROR
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,RPC_S_UNSUPPORTED_TRANS_SYN
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,RPC_S_UNSUPPORTED_TYPE
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,RPC_S_PROCNUM_OUT_OF_RANGE
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,EPT_S_NOT_REGISTERED
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,RPC_S_COMM_FAILURE
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,RPC_S_ASYNC_CALL_PENDING
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};
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int Mid;
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int Low = 0;
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int High = (sizeof(CommStatArray)/sizeof( unsigned long)) - 1;
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BOOL fCmp;
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BOOL fCommStat = FALSE;
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// Check if there was no error.
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if( RetVal == 0 )
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return RetVal;
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// Find a comm error mapping.
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while( Low <= High )
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{
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Mid = (Low + High) / 2;
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fCmp = (long)RetVal - (long) CommStatArray[ Mid ];
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if( fCmp < 0 )
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{
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High = Mid - 1;
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}
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else if( fCmp > 0 )
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{
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Low = Mid + 1;
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}
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else
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{
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fCommStat = TRUE;
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break;
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}
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}
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// If there was a comm error, return it in the pComm, if possible;
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// If it was a non-comm error, return it in the pFault, if possible.
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if( fCommStat )
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{
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if( pComm )
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{
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*pComm = RetVal;
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RetVal = 0;
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}
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}
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else
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{
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if( pFault )
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{
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*pFault = RetVal;
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RetVal = 0;
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}
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}
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return RetVal;
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}
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