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2086 lines
56 KiB
2086 lines
56 KiB
//
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// Copyright (c) Microsoft Corporation 1993-1995
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//
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// rovdi.c
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//
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// This files contains Device Installer wrappers that we commonly use.
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//
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// History:
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// 11-13-95 ScottH Separated from NT modem class installer
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//
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#define REENUMERATE_PORT
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#include "proj.h"
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#include "rovcomm.h"
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#include <cfgmgr32.h>
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#include <debugmem.h>
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#define MAX_REG_KEY_LEN 128
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#define CB_MAX_REG_KEY_LEN (MAX_REG_KEY_LEN * sizeof(TCHAR))
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//-----------------------------------------------------------------------------------
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// Port mapping functions
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//-----------------------------------------------------------------------------------
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#define CPORTPAIR 8
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#ifdef REENUMERATE_PORT
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typedef struct tagPORTPAIR
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{
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DEVNODE devNode;
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WCHAR szPortName[MAX_BUF];
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WCHAR szFriendlyName[MAX_BUF];
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} PORTPAIR, FAR * LPPORTPAIR;
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#else // REENUMERATE_PORT not defined
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typedef struct tagPORTPAIR
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{
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CHAR szPortName[MAX_BUF];
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CHAR szFriendlyName[MAX_BUF];
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} PORTPAIR, FAR * LPPORTPAIR;
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#endif // REENUMERATE_PORT
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typedef struct tagPORTMAP
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{
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LPPORTPAIR rgports; // Alloc
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int cports;
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} PORTMAP, FAR * LPPORTMAP;
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/*----------------------------------------------------------
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Purpose: Performs a local realloc my way
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Returns: TRUE on success
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Cond: --
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*/
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BOOL PRIVATE MyReAlloc(
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LPVOID FAR * ppv,
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int cbOld,
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int cbNew)
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{
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LPVOID pv = (LPVOID)ALLOCATE_MEMORY( cbNew);
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if (pv)
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{
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CopyMemory(pv, *ppv, min(cbOld, cbNew));
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FREE_MEMORY(*ppv);
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*ppv = pv;
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}
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return (NULL != pv);
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}
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#ifdef REENUMERATE_PORT
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/*----------------------------------------------------------
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Purpose: Device enumerator callback. Adds another device to the
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map table.
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Returns: TRUE to continue enumeration
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Cond: --
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*/
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BOOL
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CALLBACK
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PortMap_Add (
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HPORTDATA hportdata,
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LPARAM lParam)
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{
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BOOL bRet;
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PORTDATA pd;
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pd.cbSize = sizeof(pd);
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bRet = PortData_GetProperties (hportdata, &pd);
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if (bRet)
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{
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LPPORTMAP pmap = (LPPORTMAP)lParam;
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LPPORTPAIR ppair;
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int cb;
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int cbUsed;
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// Time to reallocate the table?
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cb = (int)SIZE_OF_MEMORY(pmap->rgports);
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cbUsed = pmap->cports * sizeof(*ppair);
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if (cbUsed >= cb)
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{
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// Yes
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cb += (CPORTPAIR * sizeof(*ppair));
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bRet = MyReAlloc((LPVOID FAR *)&pmap->rgports, cbUsed, cb);
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}
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if (bRet)
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{
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ppair = &pmap->rgports[pmap->cports++];
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#ifdef UNICODE
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lstrcpy(ppair->szPortName, pd.szPort);
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lstrcpy(ppair->szFriendlyName, pd.szFriendly);
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#else
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WideCharToMultiByte(CP_ACP, 0, pd.szPort, -1, ppair->szPortName, SIZECHARS(ppair->szPortName), 0, 0);
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WideCharToMultiByte(CP_ACP, 0, pd.szFriendly, -1, ppair->szFriendlyName, SIZECHARS(ppair->szFriendlyName), 0, 0);
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#endif
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DEBUG_CODE( TRACE_MSG(TF_GENERAL, "Added %s <-> %s to portmap",
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ppair->szPortName, ppair->szFriendlyName); )
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}
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}
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return bRet;
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}
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#else //REENUMERATE_PORT not defined
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/*----------------------------------------------------------
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Purpose: Device enumerator callback. Adds another device to the
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map table.
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Returns: TRUE to continue enumeration
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Cond: --
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*/
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BOOL
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CALLBACK
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PortMap_Add(
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HPORTDATA hportdata,
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LPARAM lParam)
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{
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BOOL bRet;
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PORTDATA pd;
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pd.cbSize = sizeof(pd);
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bRet = PortData_GetProperties(hportdata, &pd);
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if (bRet)
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{
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LPPORTMAP pmap = (LPPORTMAP)lParam;
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LPPORTPAIR ppair;
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int cb;
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int cbUsed;
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// Time to reallocate the table?
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cb = SIZE_OF_MEMORY(pmap->rgports);
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cbUsed = pmap->cports * sizeof(*ppair);
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if (cbUsed >= cb)
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{
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// Yes
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cb += (CPORTPAIR * sizeof(*ppair));
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bRet = MyReAlloc((LPVOID FAR *)&pmap->rgports, cbUsed, cb);
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}
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if (bRet)
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{
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ppair = &pmap->rgports[pmap->cports++];
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#ifdef UNICODE
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// Fields of LPPORTPAIR are always ANSI
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WideCharToMultiByte(CP_ACP, 0, pd.szPort, -1, ppair->szPortName, SIZECHARS(ppair->szPortName), 0, 0);
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WideCharToMultiByte(CP_ACP, 0, pd.szFriendly, -1, ppair->szFriendlyName, SIZECHARS(ppair->szFriendlyName), 0, 0);
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#else
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lstrcpy(ppair->szPortName, pd.szPort);
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lstrcpy(ppair->szFriendlyName, pd.szFriendly);
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#endif
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DEBUG_CODE( TRACE_MSG(TF_GENERAL, "Added %s <-> %s to portmap",
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ppair->szPortName, ppair->szFriendlyName); )
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}
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}
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return bRet;
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}
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#endif // REENUMERATE_PORT
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#ifdef REENUMERATE_PORT
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void
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PortMap_InitDevInst (LPPORTMAP pmap)
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{
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DWORD dwDeviceIDListSize = 4*1024; // start with 4k TCHAR space
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TCHAR *szDeviceIDList = NULL;
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CONFIGRET cr;
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if (NULL == pmap ||
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0 >= pmap->cports)
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{
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// BRL 9/4/98, bug 217715
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// ASSERT(0);
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return;
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}
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// First, get the list of all devices
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do
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{
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szDeviceIDList = ALLOCATE_MEMORY(
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dwDeviceIDListSize*sizeof(TCHAR));
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if (NULL == szDeviceIDList)
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{
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break;
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}
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cr = CM_Get_Device_ID_List (NULL,
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szDeviceIDList,
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dwDeviceIDListSize,
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CM_GETIDLIST_FILTER_NONE);
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if (CR_SUCCESS != cr)
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{
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FREE_MEMORY(szDeviceIDList);
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szDeviceIDList = NULL;
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if (CR_BUFFER_SMALL != cr ||
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CR_SUCCESS != CM_Get_Device_ID_List_Size (&dwDeviceIDListSize,
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NULL,
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CM_GETIDLIST_FILTER_NONE))
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{
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break;
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}
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}
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} while (CR_SUCCESS != cr);
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// If we got the list, look for all
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// devices that have a port name, and
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// update the port map
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if (NULL != szDeviceIDList)
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{
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DEVINST devInst;
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DWORD cbData;
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DWORD dwRet;
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int cbRemaining = pmap->cports;
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//int i;
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HKEY hKey;
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LPPORTPAIR pPort, pLast = pmap->rgports + (pmap->cports-1);
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TCHAR *szDeviceID;
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PORTPAIR portTemp;
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TCHAR szPort[MAX_BUF];
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for (szDeviceID = szDeviceIDList;
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*szDeviceID && 0 < cbRemaining;
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szDeviceID += lstrlen(szDeviceID)+1)
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{
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// First, locate the devinst
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if (CR_SUCCESS != CM_Locate_DevInst (&devInst,
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szDeviceID,
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CM_LOCATE_DEVNODE_NORMAL))
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{
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// We couldn't locate this devnode;
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// go to the next one;
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TRACE_MSG(TF_ERROR, "Could not locate devnode for %s.", szDeviceID);
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continue;
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}
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// Then, open the registry key for the devinst
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if (CR_SUCCESS != CM_Open_DevNode_Key (devInst,
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KEY_QUERY_VALUE,
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0,
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RegDisposition_OpenExisting,
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&hKey,
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CM_REGISTRY_HARDWARE))
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{
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TRACE_MSG(TF_ERROR, "Could not open hardware key for %s.", szDeviceID);
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continue;
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}
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// Now, try to read the "PortName"
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cbData = sizeof (szPort);
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dwRet = RegQueryValueEx (hKey,
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REGSTR_VAL_PORTNAME,
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NULL,
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NULL,
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(PBYTE)szPort,
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&cbData);
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RegCloseKey (hKey);
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if (ERROR_SUCCESS != dwRet)
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{
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TRACE_MSG(TF_ERROR, "Could not read PortName for %s.", szDeviceID);
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continue;
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}
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// If we got here, we have a PortName;
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// look for it in our map, and if we find
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// it, update the devNode and FriendlyName
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for (/*i = 0, */pPort = pmap->rgports;
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/*i < cbRemaining*/pPort <= pLast;
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/*i++, */pPort++)
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{
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if (0 == lstrcmpiW (szPort, pPort->szPortName))
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{
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// Found the port;
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// first, initialize the DevInst
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pPort->devNode = devInst;
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// then, if possible, update the friendly name
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cbData = sizeof(szPort);
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if (CR_SUCCESS ==
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CM_Get_DevNode_Registry_Property (devInst,
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CM_DRP_FRIENDLYNAME,
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NULL,
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(PVOID)szPort,
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&cbData,
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0))
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{
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lstrcpyW (pPort->szFriendlyName, szPort);
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}
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// This is an optimization, so that next time
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// we don't cycle throught the whole list
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if (0 < --cbRemaining)
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{
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// move this item to the
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// end of the array
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portTemp = *pPort;
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*pPort = *pLast;
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*pLast = portTemp;
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pLast--;
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}
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break;
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}
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}
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}
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FREE_MEMORY(szDeviceIDList);
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}
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}
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/*----------------------------------------------------------
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Purpose: Wide-char version. This function creates a port map
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table that maps port names to friendly names, and
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vice-versa.
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Returns: TRUE on success
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Cond: --
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*/
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BOOL
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APIENTRY
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PortMap_Create (
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OUT HPORTMAP FAR * phportmap)
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{
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LPPORTMAP pmap;
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pmap = (LPPORTMAP)ALLOCATE_MEMORY( sizeof(*pmap));
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if (pmap)
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{
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// Initially alloc 8 entries
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pmap->rgports = (LPPORTPAIR)ALLOCATE_MEMORY( CPORTPAIR*sizeof(*pmap->rgports));
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if (pmap->rgports)
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{
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// Fill the map table
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EnumeratePorts (PortMap_Add, (LPARAM)pmap);
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PortMap_InitDevInst (pmap);
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}
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else
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{
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// Error
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FREE_MEMORY(pmap);
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pmap = NULL;
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}
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}
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*phportmap = (HPORTMAP)pmap;
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return (NULL != pmap);
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}
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#else // REENUMERATE_PORT not defined
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BOOL
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APIENTRY
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PortMap_Create(
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OUT HPORTMAP FAR * phportmap)
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{
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LPPORTMAP pmap;
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pmap = (LPPORTMAP)ALLOCATE_MEMORY( sizeof(*pmap));
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if (pmap)
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{
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// Initially alloc 8 entries
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pmap->rgports = (LPPORTPAIR)ALLOCATE_MEMORY( CPORTPAIR*sizeof(*pmap->rgports));
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if (pmap->rgports)
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{
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// Fill the map table
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EnumeratePorts(PortMap_Add, (LPARAM)pmap);
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}
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else
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{
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// Error
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FREE_MEMORY(pmap);
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pmap = NULL;
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}
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}
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*phportmap = (HPORTMAP)pmap;
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return (NULL != pmap);
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}
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#endif // REENUMERATE_PORT
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|
|
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/*----------------------------------------------------------
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Purpose: Gets the count of ports on the system.
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Returns: see above
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Cond: --
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*/
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DWORD
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APIENTRY
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PortMap_GetCount(
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IN HPORTMAP hportmap)
|
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{
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DWORD dwRet;
|
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LPPORTMAP pmap = (LPPORTMAP)hportmap;
|
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try
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{
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dwRet = pmap->cports;
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}
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except (EXCEPTION_EXECUTE_HANDLER)
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{
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dwRet = 0;
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}
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return dwRet;
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}
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|
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|
|
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#ifdef REENUMERATE_PORT
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/*----------------------------------------------------------
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Purpose: Gets the friendly name given the port name and places
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a copy in the supplied buffer.
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|
|
If no port name is found, the contents of the supplied
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|
buffer is not changed.
|
|
|
|
Wide-char version.
|
|
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Returns: TRUE on success
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FALSE if the port name is not found
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Cond: --
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*/
|
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BOOL
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APIENTRY
|
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PortMap_GetFriendlyW (
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IN HPORTMAP hportmap,
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IN LPCWSTR pwszPortName,
|
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OUT LPWSTR pwszBuf,
|
|
IN DWORD cchBuf)
|
|
{
|
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LPPORTMAP pmap = (LPPORTMAP)hportmap;
|
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|
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ASSERT(pmap);
|
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ASSERT(pwszPortName);
|
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ASSERT(pwszBuf);
|
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|
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try
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{
|
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LPPORTPAIR pport = pmap->rgports;
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int cports = pmap->cports;
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int i;
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|
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for (i = 0; i < cports; i++, pport++)
|
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{
|
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if (0 == lstrcmpiW (pwszPortName, pport->szPortName))
|
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{
|
|
lstrcpynW (pwszBuf, pport->szFriendlyName, cchBuf);
|
|
return TRUE;
|
|
}
|
|
}
|
|
}
|
|
except (EXCEPTION_EXECUTE_HANDLER)
|
|
{
|
|
SetLastError(ERROR_INVALID_PARAMETER);
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
|
|
/*----------------------------------------------------------
|
|
Purpose: Gets the friendly name given the port name and places
|
|
a copy in the supplied buffer.
|
|
|
|
If no port name is found, the contents of the supplied
|
|
buffer is not changed.
|
|
|
|
Returns: TRUE on success
|
|
FALSE if the port name is not found
|
|
Cond: --
|
|
*/
|
|
BOOL
|
|
APIENTRY
|
|
PortMap_GetFriendlyA (
|
|
IN HPORTMAP hportmap,
|
|
IN LPCSTR pszPortName,
|
|
OUT LPSTR pszBuf,
|
|
IN DWORD cchBuf)
|
|
{
|
|
BOOL bRet;
|
|
|
|
ASSERT(pszPortName);
|
|
ASSERT(pszBuf);
|
|
|
|
try
|
|
{
|
|
WCHAR szPort[MAX_BUF_MED];
|
|
WCHAR szBuf[MAX_BUF];
|
|
|
|
MultiByteToWideChar (CP_ACP, 0, pszPortName, -1, szPort, SIZECHARS(szPort));
|
|
|
|
bRet = PortMap_GetFriendlyW (hportmap, szPort, szBuf, SIZECHARS(szBuf));
|
|
|
|
if (bRet)
|
|
{
|
|
WideCharToMultiByte (CP_ACP, 0, szBuf, -1, pszBuf, cchBuf, 0, 0);
|
|
}
|
|
}
|
|
except (EXCEPTION_EXECUTE_HANDLER)
|
|
{
|
|
SetLastError (ERROR_INVALID_PARAMETER);
|
|
bRet = FALSE;
|
|
}
|
|
|
|
return bRet;
|
|
}
|
|
|
|
|
|
/*----------------------------------------------------------
|
|
Purpose: Gets the port name given the friendly name and places
|
|
a copy in the supplied buffer.
|
|
|
|
If no friendly name is found, the contents of the supplied
|
|
buffer is not changed.
|
|
|
|
Wide-char version.
|
|
|
|
Returns: TRUE on success
|
|
FALSE if the friendly name is not found
|
|
Cond: --
|
|
*/
|
|
BOOL
|
|
APIENTRY
|
|
PortMap_GetPortNameW (
|
|
IN HPORTMAP hportmap,
|
|
IN LPCWSTR pwszFriendly,
|
|
OUT LPWSTR pwszBuf,
|
|
IN DWORD cchBuf)
|
|
{
|
|
LPPORTMAP pmap = (LPPORTMAP)hportmap;
|
|
|
|
ASSERT(pmap);
|
|
ASSERT(pwszFriendly);
|
|
ASSERT(pwszBuf);
|
|
|
|
try
|
|
{
|
|
LPPORTPAIR pport = pmap->rgports;
|
|
int cports = pmap->cports;
|
|
int i;
|
|
|
|
for (i = 0; i < cports; i++, pport++)
|
|
{
|
|
if (0 == lstrcmpiW (pwszFriendly, pport->szFriendlyName))
|
|
{
|
|
lstrcpynW (pwszBuf, pport->szPortName, cchBuf);
|
|
return TRUE;
|
|
}
|
|
}
|
|
}
|
|
except (EXCEPTION_EXECUTE_HANDLER)
|
|
{
|
|
SetLastError(ERROR_INVALID_PARAMETER);
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
|
|
/*----------------------------------------------------------
|
|
Purpose: Gets the port name given the friendly name and places
|
|
a copy in the supplied buffer.
|
|
|
|
If no friendly name is found, the contents of the supplied
|
|
buffer is not changed.
|
|
|
|
Returns: TRUE
|
|
FALSE if the friendly name is not found
|
|
|
|
Cond: --
|
|
*/
|
|
BOOL
|
|
APIENTRY
|
|
PortMap_GetPortNameA (
|
|
IN HPORTMAP hportmap,
|
|
IN LPCSTR pszFriendly,
|
|
OUT LPSTR pszBuf,
|
|
IN DWORD cchBuf)
|
|
{
|
|
BOOL bRet;
|
|
|
|
ASSERT(pszFriendly);
|
|
ASSERT(pszBuf);
|
|
|
|
try
|
|
{
|
|
WCHAR szFriendly[MAX_BUF];
|
|
WCHAR szBuf[MAX_BUF_MED];
|
|
|
|
MultiByteToWideChar(CP_ACP, 0, pszFriendly, -1, szFriendly, SIZECHARS(szFriendly));
|
|
|
|
bRet = PortMap_GetPortNameW (hportmap, szFriendly, szBuf, SIZECHARS(szBuf));
|
|
|
|
if (bRet)
|
|
{
|
|
WideCharToMultiByte(CP_ACP, 0, szBuf, -1, pszBuf, cchBuf, 0, 0);
|
|
}
|
|
}
|
|
except (EXCEPTION_EXECUTE_HANDLER)
|
|
{
|
|
bRet = FALSE;
|
|
SetLastError(ERROR_INVALID_PARAMETER);
|
|
}
|
|
|
|
return bRet;
|
|
}
|
|
|
|
|
|
/*----------------------------------------------------------
|
|
Purpose: Gets the device instance, given the port name
|
|
|
|
Returns: TRUE
|
|
FALSE if the friendly name is not found
|
|
|
|
Cond: --
|
|
*/
|
|
BOOL
|
|
APIENTRY
|
|
PortMap_GetDevNodeW (
|
|
IN HPORTMAP hportmap,
|
|
IN LPCWSTR pszPortName,
|
|
OUT LPDWORD pdwDevNode)
|
|
{
|
|
LPPORTMAP pmap = (LPPORTMAP)hportmap;
|
|
|
|
ASSERT(pmap);
|
|
ASSERT(pszPortName);
|
|
ASSERT(pdwDevNode);
|
|
|
|
try
|
|
{
|
|
LPPORTPAIR pport = pmap->rgports;
|
|
int cports = pmap->cports;
|
|
int i;
|
|
|
|
for (i = 0; i < cports; i++, pport++)
|
|
{
|
|
if (0 == lstrcmpiW (pszPortName, pport->szPortName))
|
|
{
|
|
*pdwDevNode = pport->devNode;
|
|
return TRUE;
|
|
}
|
|
}
|
|
}
|
|
except (EXCEPTION_EXECUTE_HANDLER)
|
|
{
|
|
SetLastError(ERROR_INVALID_PARAMETER);
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
|
|
BOOL
|
|
APIENTRY
|
|
PortMap_GetDevNodeA (
|
|
IN HPORTMAP hportmap,
|
|
IN LPCSTR pszPortName,
|
|
OUT LPDWORD pdwDevNode)
|
|
{
|
|
BOOL bRet;
|
|
|
|
ASSERT(pszPortName);
|
|
ASSERT(pdwDevNode);
|
|
|
|
try
|
|
{
|
|
WCHAR szPort[MAX_BUF];
|
|
|
|
MultiByteToWideChar(CP_ACP, 0, pszPortName, -1, szPort, SIZECHARS(szPort));
|
|
|
|
bRet = PortMap_GetDevNodeW (hportmap, szPort, pdwDevNode);
|
|
}
|
|
except (EXCEPTION_EXECUTE_HANDLER)
|
|
{
|
|
bRet = FALSE;
|
|
SetLastError(ERROR_INVALID_PARAMETER);
|
|
}
|
|
|
|
return bRet;
|
|
}
|
|
|
|
#else // REENUMERATE_PORT not defined
|
|
/*----------------------------------------------------------
|
|
Purpose: Gets the friendly name given the port name and places
|
|
a copy in the supplied buffer.
|
|
|
|
If no port name is found, the contents of the supplied
|
|
buffer is not changed.
|
|
|
|
Wide-char version.
|
|
|
|
Returns: TRUE on success
|
|
FALSE if the port name is not found
|
|
Cond: --
|
|
*/
|
|
BOOL
|
|
APIENTRY
|
|
PortMap_GetFriendlyW(
|
|
IN HPORTMAP hportmap,
|
|
IN LPCWSTR pwszPortName,
|
|
OUT LPWSTR pwszBuf,
|
|
IN DWORD cchBuf)
|
|
{
|
|
BOOL bRet;
|
|
|
|
ASSERT(pwszPortName);
|
|
ASSERT(pwszBuf);
|
|
|
|
try
|
|
{
|
|
CHAR szPort[MAX_BUF_MED];
|
|
CHAR szBuf[MAX_BUF];
|
|
|
|
WideCharToMultiByte(CP_ACP, 0, pwszPortName, -1, szPort, SIZECHARS(szPort), 0, 0);
|
|
|
|
bRet = PortMap_GetFriendlyA(hportmap, szPort, szBuf, SIZECHARS(szBuf));
|
|
|
|
if (bRet)
|
|
{
|
|
MultiByteToWideChar(CP_ACP, 0, szBuf, -1, pwszBuf, cchBuf);
|
|
}
|
|
}
|
|
except (EXCEPTION_EXECUTE_HANDLER)
|
|
{
|
|
SetLastError(ERROR_INVALID_PARAMETER);
|
|
bRet = FALSE;
|
|
}
|
|
|
|
return bRet;
|
|
}
|
|
|
|
|
|
/*----------------------------------------------------------
|
|
Purpose: Gets the friendly name given the port name and places
|
|
a copy in the supplied buffer.
|
|
|
|
If no port name is found, the contents of the supplied
|
|
buffer is not changed.
|
|
|
|
Returns: TRUE on success
|
|
FALSE if the port name is not found
|
|
Cond: --
|
|
*/
|
|
BOOL
|
|
APIENTRY
|
|
PortMap_GetFriendlyA(
|
|
IN HPORTMAP hportmap,
|
|
IN LPCSTR pszPortName,
|
|
OUT LPSTR pszBuf,
|
|
IN DWORD cchBuf)
|
|
{
|
|
LPPORTMAP pmap = (LPPORTMAP)hportmap;
|
|
|
|
ASSERT(pmap);
|
|
ASSERT(pszPortName);
|
|
ASSERT(pszBuf);
|
|
|
|
try
|
|
{
|
|
LPPORTPAIR pport = pmap->rgports;
|
|
int cports = pmap->cports;
|
|
int i;
|
|
|
|
for (i = 0; i < cports; i++, pport++)
|
|
{
|
|
if (0 == lstrcmpiA(pszPortName, pport->szPortName))
|
|
{
|
|
lstrcpynA(pszBuf, pport->szFriendlyName, cchBuf);
|
|
return TRUE;
|
|
}
|
|
}
|
|
}
|
|
except (EXCEPTION_EXECUTE_HANDLER)
|
|
{
|
|
SetLastError(ERROR_INVALID_PARAMETER);
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
|
|
/*----------------------------------------------------------
|
|
Purpose: Gets the port name given the friendly name and places
|
|
a copy in the supplied buffer.
|
|
|
|
If no friendly name is found, the contents of the supplied
|
|
buffer is not changed.
|
|
|
|
Wide-char version.
|
|
|
|
Returns: TRUE on success
|
|
FALSE if the friendly name is not found
|
|
Cond: --
|
|
*/
|
|
BOOL
|
|
APIENTRY
|
|
PortMap_GetPortNameW(
|
|
IN HPORTMAP hportmap,
|
|
IN LPCWSTR pwszFriendly,
|
|
OUT LPWSTR pwszBuf,
|
|
IN DWORD cchBuf)
|
|
{
|
|
BOOL bRet;
|
|
|
|
ASSERT(pwszFriendly);
|
|
ASSERT(pwszBuf);
|
|
|
|
try
|
|
{
|
|
CHAR szFriendly[MAX_BUF];
|
|
CHAR szBuf[MAX_BUF_MED];
|
|
|
|
WideCharToMultiByte(CP_ACP, 0, pwszFriendly, -1, szFriendly, SIZECHARS(szFriendly), 0, 0);
|
|
|
|
bRet = PortMap_GetPortNameA(hportmap, szFriendly, szBuf, SIZECHARS(szBuf));
|
|
|
|
if (bRet)
|
|
{
|
|
MultiByteToWideChar(CP_ACP, 0, szBuf, -1, pwszBuf, cchBuf);
|
|
}
|
|
}
|
|
except (EXCEPTION_EXECUTE_HANDLER)
|
|
{
|
|
bRet = FALSE;
|
|
SetLastError(ERROR_INVALID_PARAMETER);
|
|
}
|
|
|
|
return bRet;
|
|
}
|
|
|
|
|
|
/*----------------------------------------------------------
|
|
Purpose: Gets the port name given the friendly name and places
|
|
a copy in the supplied buffer.
|
|
|
|
If no friendly name is found, the contents of the supplied
|
|
buffer is not changed.
|
|
|
|
Returns: TRUE
|
|
FALSE if the friendly name is not found
|
|
|
|
Cond: --
|
|
*/
|
|
BOOL
|
|
APIENTRY
|
|
PortMap_GetPortNameA(
|
|
IN HPORTMAP hportmap,
|
|
IN LPCSTR pszFriendly,
|
|
OUT LPSTR pszBuf,
|
|
IN DWORD cchBuf)
|
|
{
|
|
LPPORTMAP pmap = (LPPORTMAP)hportmap;
|
|
|
|
ASSERT(pmap);
|
|
ASSERT(pszFriendly);
|
|
ASSERT(pszBuf);
|
|
|
|
try
|
|
{
|
|
LPPORTPAIR pport = pmap->rgports;
|
|
int cports = pmap->cports;
|
|
int i;
|
|
|
|
for (i = 0; i < cports; i++, pport++)
|
|
{
|
|
if (0 == lstrcmpiA(pszFriendly, pport->szFriendlyName))
|
|
{
|
|
lstrcpynA(pszBuf, pport->szPortName, cchBuf);
|
|
return TRUE;
|
|
}
|
|
}
|
|
}
|
|
except (EXCEPTION_EXECUTE_HANDLER)
|
|
{
|
|
SetLastError(ERROR_INVALID_PARAMETER);
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
#endif // REENUMERATE_PORT
|
|
|
|
/*----------------------------------------------------------
|
|
Purpose: Frees a port map
|
|
|
|
Returns: --
|
|
Cond: --
|
|
*/
|
|
BOOL
|
|
APIENTRY
|
|
PortMap_Free(
|
|
IN HPORTMAP hportmap)
|
|
{
|
|
LPPORTMAP pmap = (LPPORTMAP)hportmap;
|
|
|
|
if (pmap)
|
|
{
|
|
if (pmap->rgports)
|
|
FREE_MEMORY(pmap->rgports);
|
|
|
|
FREE_MEMORY(pmap);
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------------
|
|
// Port enumeration functions
|
|
//-----------------------------------------------------------------------------------
|
|
|
|
|
|
#pragma data_seg(DATASEG_READONLY)
|
|
|
|
TCHAR const FAR c_szSerialComm[] = TEXT("HARDWARE\\DEVICEMAP\\SERIALCOMM");
|
|
|
|
#pragma data_seg()
|
|
|
|
|
|
/*----------------------------------------------------------
|
|
Purpose: Enumerates all the ports on the system and calls pfnDevice.
|
|
|
|
pfnDevice can terminate the enumeration by returning FALSE.
|
|
|
|
Returns: NO_ERROR if at least one port was found
|
|
Cond: --
|
|
*/
|
|
#ifdef _USE_SERIAL_INTERFACE
|
|
DWORD
|
|
APIENTRY
|
|
EnumeratePorts(
|
|
IN ENUMPORTPROC pfnDevice,
|
|
IN LPARAM lParam) OPTIONAL
|
|
{
|
|
DWORD dwRet = NO_ERROR;
|
|
HDEVINFO hdi;
|
|
GUID guidSerialInterface = {0xB115ED80L, 0x46DF, 0x11D0, 0xB4, 0x65, 0x00,
|
|
0x00, 0x1A, 0x18, 0x18, 0xE6};
|
|
DWORD dwIndex = 0;
|
|
SP_DEVICE_INTERFACE_DATA devInterfaceData;
|
|
SP_DEVINFO_DATA devInfoData;
|
|
HKEY hKeyDev = INVALID_HANDLE_VALUE;
|
|
PORTDATA pd;
|
|
BOOL bContinue;
|
|
DWORD dwType;
|
|
DWORD cbData;
|
|
|
|
// First build a list of all the device that suppoort serial port interface
|
|
hdi = SetupDiGetClassDevs (&guidSerialInterface, NULL, NULL, DIGCF_DEVICEINTERFACE);
|
|
if (INVALID_HANDLE_VALUE == hdi)
|
|
{
|
|
dwRet = GetLastError ();
|
|
goto _ErrRet;
|
|
}
|
|
|
|
pd.cbSize = sizeof (PORTDATA);
|
|
devInterfaceData.cbSize = sizeof (SP_DEVICE_INTERFACE_DATA);
|
|
devInfoData.cbSize = sizeof (SP_DEVINFO_DATA);
|
|
// Enumerate the interface devices
|
|
for (dwIndex = 0;
|
|
SetupDiEnumInterfaceDevice (hdi, NULL, &guidSerialInterface, dwIndex, &devInterfaceData);
|
|
dwIndex++)
|
|
{
|
|
// For each interface device, get the parent device node
|
|
if (SetupDiGetDeviceInterfaceDetail (hdi, &devInterfaceData, NULL, 0, NULL, &devInfoData) ||
|
|
ERROR_INSUFFICIENT_BUFFER == GetLastError ())
|
|
{
|
|
// open the registry key for the node ...
|
|
hKeyDev = SetupDiOpenDevRegKey (hdi, &devInfoData, DICS_FLAG_GLOBAL, 0, DIREG_DEV, KEY_READ);
|
|
if (INVALID_HANDLE_VALUE == hKeyDev)
|
|
{
|
|
dwRet = GetLastError ();
|
|
continue;
|
|
}
|
|
|
|
// ... and get the value for PortName
|
|
cbData = sizeof(pd.szPort);
|
|
dwRet = RegQueryValueEx (hKeyDev, TEXT("PortName"), NULL, &dwType, &pd.szPort, &cbData);
|
|
RegCloseKey(hKeyDev);
|
|
if (ERROR_SUCCESS == dwRet)
|
|
{
|
|
pd.nSubclass = PORT_SUBCLASS_SERIAL;
|
|
// now, try to get the friendly name from the dev node
|
|
if (!SetupDiGetDeviceRegistryProperty (hdi, &devInfoData, SPDRP_FRIENDLYNAME,
|
|
NULL, &pd.szFriendly, sizeof (pd.szFriendly), NULL))
|
|
{
|
|
// if unsuccessfull, just copy the port name
|
|
// to the friendly name
|
|
lstrcpy(pd.szFriendly, pd.szPort);
|
|
}
|
|
|
|
// call the callback
|
|
bContinue = pfnDevice((HPORTDATA)&pd, lParam);
|
|
|
|
// Continue?
|
|
if ( !bContinue )
|
|
{
|
|
// No
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
dwRet = GetLastError ();
|
|
}
|
|
}
|
|
|
|
_ErrRet:
|
|
if (INVALID_HANDLE_VALUE != hdi)
|
|
{
|
|
SetupDiDestroyDeviceInfoList (hdi);
|
|
}
|
|
|
|
return dwRet;
|
|
}
|
|
#else // not defined _USE_SERIAL_INTERFACE
|
|
DWORD
|
|
APIENTRY
|
|
EnumeratePorts(
|
|
IN ENUMPORTPROC pfnDevice,
|
|
IN LPARAM lParam) OPTIONAL
|
|
{
|
|
DWORD dwRet;
|
|
HKEY hkeyEnum;
|
|
|
|
dwRet = RegOpenKey(HKEY_LOCAL_MACHINE, c_szSerialComm, &hkeyEnum);
|
|
if (NO_ERROR == dwRet)
|
|
{
|
|
BOOL bContinue;
|
|
PORTDATA pd;
|
|
DWORD iSubKey;
|
|
TCHAR szValue[MAX_BUF];
|
|
DWORD cbValue;
|
|
DWORD cbData;
|
|
DWORD dwType;
|
|
|
|
dwRet = ERROR_PATH_NOT_FOUND; // assume no ports
|
|
|
|
iSubKey = 0;
|
|
|
|
cbValue = sizeof(szValue) / sizeof(TCHAR);
|
|
cbData = sizeof(pd.szPort);
|
|
|
|
while (NO_ERROR == RegEnumValue(hkeyEnum, iSubKey++, szValue, &cbValue,
|
|
NULL, &dwType, (LPBYTE)pd.szPort, &cbData))
|
|
{
|
|
if (REG_SZ == dwType)
|
|
{
|
|
// Friendly name is the same as the port name right now
|
|
dwRet = NO_ERROR;
|
|
|
|
pd.nSubclass = PORT_SUBCLASS_SERIAL;
|
|
lstrcpy(pd.szFriendly, pd.szPort);
|
|
|
|
bContinue = pfnDevice((HPORTDATA)&pd, lParam);
|
|
|
|
// Continue?
|
|
if ( !bContinue )
|
|
{
|
|
// No
|
|
break;
|
|
}
|
|
}
|
|
|
|
cbValue = sizeof(szValue);
|
|
cbData = sizeof(pd.szPort);
|
|
}
|
|
|
|
RegCloseKey(hkeyEnum);
|
|
}
|
|
|
|
return dwRet;
|
|
}
|
|
#endif // _USE_SERIAL_INTERFACE
|
|
|
|
|
|
|
|
/*----------------------------------------------------------
|
|
Purpose: This function fills the given buffer with the properties
|
|
of the particular port.
|
|
|
|
Wide-char version.
|
|
|
|
Returns: TRUE on success
|
|
Cond: --
|
|
*/
|
|
BOOL
|
|
APIENTRY
|
|
PortData_GetPropertiesW(
|
|
IN HPORTDATA hportdata,
|
|
OUT LPPORTDATA_W pdataBuf)
|
|
{
|
|
BOOL bRet = FALSE;
|
|
|
|
ASSERT(hportdata);
|
|
ASSERT(pdataBuf);
|
|
|
|
if (hportdata && pdataBuf)
|
|
{
|
|
// Is the handle to a Widechar version?
|
|
if (sizeof(PORTDATA_W) == pdataBuf->cbSize)
|
|
{
|
|
// Yes
|
|
LPPORTDATA_W ppd = (LPPORTDATA_W)hportdata;
|
|
|
|
pdataBuf->nSubclass = ppd->nSubclass;
|
|
|
|
lstrcpynW(pdataBuf->szPort, ppd->szPort, SIZECHARS(pdataBuf->szPort));
|
|
lstrcpynW(pdataBuf->szFriendly, ppd->szFriendly, SIZECHARS(pdataBuf->szFriendly));
|
|
|
|
bRet = TRUE;
|
|
}
|
|
else if (sizeof(PORTDATA_A) == pdataBuf->cbSize)
|
|
{
|
|
// No; this is the Ansi version
|
|
LPPORTDATA_A ppd = (LPPORTDATA_A)hportdata;
|
|
|
|
pdataBuf->nSubclass = ppd->nSubclass;
|
|
|
|
MultiByteToWideChar(CP_ACP, 0, ppd->szPort, -1, pdataBuf->szPort, SIZECHARS(pdataBuf->szPort));
|
|
MultiByteToWideChar(CP_ACP, 0, ppd->szFriendly, -1, pdataBuf->szFriendly, SIZECHARS(pdataBuf->szFriendly));
|
|
|
|
bRet = TRUE;
|
|
}
|
|
else
|
|
{
|
|
// Some invalid size
|
|
ASSERT(0);
|
|
}
|
|
}
|
|
|
|
return bRet;
|
|
}
|
|
|
|
|
|
/*----------------------------------------------------------
|
|
Purpose: This function fills the given buffer with the properties
|
|
of the particular port.
|
|
|
|
Returns: TRUE on success
|
|
Cond: --
|
|
*/
|
|
BOOL
|
|
APIENTRY
|
|
PortData_GetPropertiesA(
|
|
IN HPORTDATA hportdata,
|
|
OUT LPPORTDATA_A pdataBuf)
|
|
{
|
|
BOOL bRet = FALSE;
|
|
|
|
ASSERT(hportdata);
|
|
ASSERT(pdataBuf);
|
|
|
|
if (hportdata && pdataBuf)
|
|
{
|
|
// Is the handle to a Widechar version?
|
|
if (sizeof(PORTDATA_W) == pdataBuf->cbSize)
|
|
{
|
|
// Yes
|
|
LPPORTDATA_W ppd = (LPPORTDATA_W)hportdata;
|
|
|
|
pdataBuf->nSubclass = ppd->nSubclass;
|
|
|
|
WideCharToMultiByte(CP_ACP, 0, ppd->szPort, -1, pdataBuf->szPort, SIZECHARS(pdataBuf->szPort), NULL, NULL);
|
|
WideCharToMultiByte(CP_ACP, 0, ppd->szFriendly, -1, pdataBuf->szFriendly, SIZECHARS(pdataBuf->szFriendly), NULL, NULL);
|
|
|
|
bRet = TRUE;
|
|
}
|
|
else if (sizeof(PORTDATA_A) == pdataBuf->cbSize)
|
|
{
|
|
// No; this is the Ansi version
|
|
LPPORTDATA_A ppd = (LPPORTDATA_A)hportdata;
|
|
|
|
pdataBuf->nSubclass = ppd->nSubclass;
|
|
|
|
lstrcpynA(pdataBuf->szPort, ppd->szPort, SIZECHARS(pdataBuf->szPort));
|
|
lstrcpynA(pdataBuf->szFriendly, ppd->szFriendly, SIZECHARS(pdataBuf->szFriendly));
|
|
|
|
bRet = TRUE;
|
|
}
|
|
else
|
|
{
|
|
// Some invalid size
|
|
ASSERT(0);
|
|
}
|
|
}
|
|
|
|
return bRet;
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------------
|
|
// DeviceInstaller wrappers and support functions
|
|
//-----------------------------------------------------------------------------------
|
|
|
|
#pragma data_seg(DATASEG_READONLY)
|
|
|
|
static TCHAR const c_szBackslash[] = TEXT("\\");
|
|
static TCHAR const c_szSeparator[] = TEXT("::");
|
|
static TCHAR const c_szFriendlyName[] = TEXT("FriendlyName"); // REGSTR_VAL_FRIENDLYNAME
|
|
static TCHAR const c_szDeviceType[] = TEXT("DeviceType"); // REGSTR_VAL_DEVTYPE
|
|
static TCHAR const c_szAttachedTo[] = TEXT("AttachedTo");
|
|
static TCHAR const c_szPnPAttachedTo[] = TEXT("PnPAttachedTo");
|
|
static TCHAR const c_szDriverDesc[] = TEXT("DriverDesc"); // REGSTR_VAL_DRVDESC
|
|
static TCHAR const c_szManufacturer[] = TEXT("Manufacturer");
|
|
static TCHAR const c_szRespKeyName[] = TEXT("ResponsesKeyName");
|
|
|
|
TCHAR const c_szRefCount[] = TEXT("RefCount");
|
|
TCHAR const c_szResponses[] = TEXT("Responses");
|
|
|
|
#define DRIVER_KEY REGSTR_PATH_SETUP TEXT("\\Unimodem\\DeviceSpecific")
|
|
#define RESPONSES_KEY TEXT("\\Responses")
|
|
|
|
#pragma data_seg()
|
|
|
|
|
|
/*----------------------------------------------------------
|
|
Purpose: This function returns the bus type on which the device
|
|
can be enumerated.
|
|
|
|
Returns: TRUE on success
|
|
|
|
Cond: --
|
|
*/
|
|
#include <initguid.h>
|
|
#include <wdmguid.h>
|
|
|
|
BOOL
|
|
PUBLIC
|
|
CplDiGetBusType(
|
|
IN HDEVINFO hdi,
|
|
IN PSP_DEVINFO_DATA pdevData, OPTIONAL
|
|
OUT LPDWORD pdwBusType)
|
|
{
|
|
BOOL bRet = TRUE;
|
|
ULONG ulStatus, ulProblem = 0;
|
|
#ifdef DEBUG
|
|
CONFIGRET cr;
|
|
#endif
|
|
|
|
#ifdef DEBUG
|
|
TCHAR *szBuses[] = {TEXT("BUS_TYPE_UNKNOWN"),
|
|
TEXT("BUS_TYPE_ROOT"),
|
|
TEXT("BUS_TYPE_PCMCIA"),
|
|
TEXT("BUS_TYPE_SERENUM"),
|
|
TEXT("BUS_TYPE_LPTENUM"),
|
|
TEXT("BUS_TYPE_OTHER"),
|
|
TEXT("BUS_TYPE_ISAPNP")};
|
|
#endif // DEBUG
|
|
|
|
DBG_ENTER(CplDiGetBusType);
|
|
|
|
ASSERT(hdi && INVALID_HANDLE_VALUE != hdi);
|
|
ASSERT(pdwBusType);
|
|
|
|
#ifdef DEBUG
|
|
cr = CM_Get_DevInst_Status (&ulStatus, &ulProblem, pdevData->DevInst, 0);
|
|
if ((CR_SUCCESS == cr) &&
|
|
#else
|
|
if (CR_SUCCESS == CM_Get_DevInst_Status (&ulStatus, &ulProblem, pdevData->DevInst, 0) &&
|
|
#endif
|
|
(ulStatus & DN_ROOT_ENUMERATED))
|
|
{
|
|
*pdwBusType = BUS_TYPE_ROOT;
|
|
TRACE_MSG(TF_GENERAL, "CplDiGetBusType: BUS_TYPE_ROOT");
|
|
}
|
|
else
|
|
{
|
|
GUID guid;
|
|
#ifdef DEBUG
|
|
if (CR_SUCCESS != cr)
|
|
{
|
|
TRACE_MSG(TF_ERROR, "CM_Get_DevInst_Status failed: %#lx.", cr);
|
|
}
|
|
#endif
|
|
// either CM_Get_DevInst_Status failed, which means that the device
|
|
// is plug & play and not present (i.e. plugged out),
|
|
// or the device is not root-enumerated;
|
|
// either way, it's a plug & play device.
|
|
*pdwBusType = BUS_TYPE_OTHER; // the default
|
|
|
|
// If the next call fails, it means that the device is
|
|
// BIOS / firmware enumerated; this is OK - we just return BUT_TYPE_OTHER
|
|
if (SetupDiGetDeviceRegistryProperty (hdi, pdevData, SPDRP_BUSTYPEGUID, NULL,
|
|
(PBYTE)&guid, sizeof(guid), NULL))
|
|
{
|
|
int i;
|
|
struct
|
|
{
|
|
GUID const *pguid;
|
|
DWORD dwBusType;
|
|
} BusTypes[] = {{&GUID_BUS_TYPE_SERENUM, BUS_TYPE_SERENUM},
|
|
{&GUID_BUS_TYPE_PCMCIA, BUS_TYPE_PCMCIA},
|
|
{&GUID_BUS_TYPE_ISAPNP, BUS_TYPE_ISAPNP}};
|
|
|
|
TRACE_MSG(TF_GENERAL, "Bus GUID is {%lX-%lX-%lX-%02lX%02lX-%02lX%02lX%02lX%02lX%02lX%02lX}.",
|
|
guid.Data1, (LONG)guid.Data2, (LONG)guid.Data3, (LONG)guid.Data4[0],
|
|
(LONG)guid.Data4[1], (LONG)guid.Data4[2], (LONG)guid.Data4[3],
|
|
(LONG)guid.Data4[4], (LONG)guid.Data4[5], (LONG)guid.Data4[6], (LONG)guid.Data4[7]);
|
|
|
|
for (i = 0;
|
|
i < sizeof (BusTypes) / sizeof (BusTypes[0]);
|
|
i ++)
|
|
{
|
|
if (IsEqualGUID (BusTypes[i].pguid, &guid))
|
|
{
|
|
*pdwBusType = BusTypes[i].dwBusType;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
#ifdef DEBUG
|
|
else
|
|
{
|
|
TRACE_MSG (TF_ERROR, "SetupDiGetDeviceRegistryProperty failed: %#lx.", GetLastError ());
|
|
}
|
|
#endif
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
TRACE_MSG(TF_GENERAL, "CplDiGetBusType: bus is %s", szBuses[*pdwBusType]);
|
|
#endif //DEBUG
|
|
DBG_EXIT_BOOL(CplDiGetBusType, bRet);
|
|
return bRet;
|
|
}
|
|
|
|
|
|
/*----------------------------------------------------------
|
|
Purpose: This function returns the name of the common driver
|
|
type key for the given driver. We'll use the
|
|
driver description string, since it's unique per
|
|
driver but not per installation (the friendly name
|
|
is the latter).
|
|
|
|
Returns: TRUE on success
|
|
FALSE on error
|
|
Cond: --
|
|
*/
|
|
BOOL
|
|
PRIVATE
|
|
OLD_GetCommonDriverKeyName(
|
|
IN HKEY hkeyDrv,
|
|
IN DWORD cbKeyName,
|
|
OUT LPTSTR pszKeyName)
|
|
{
|
|
BOOL bRet = FALSE; // assume failure
|
|
LONG lErr;
|
|
|
|
lErr = RegQueryValueEx(hkeyDrv, c_szDriverDesc, NULL, NULL,
|
|
(LPBYTE)pszKeyName, &cbKeyName);
|
|
if (lErr != ERROR_SUCCESS)
|
|
{
|
|
TRACE_MSG(TF_WARNING, "RegQueryValueEx(DriverDesc) failed: %#08lx.", lErr);
|
|
goto exit;
|
|
}
|
|
|
|
bRet = TRUE;
|
|
|
|
exit:
|
|
return(bRet);
|
|
|
|
}
|
|
|
|
|
|
/*----------------------------------------------------------
|
|
Purpose: This function tries to open the *old style* common
|
|
Responses key for the given driver, which used only
|
|
the driver description string for a key name.
|
|
The key is opened with READ access.
|
|
|
|
Returns: TRUE on success
|
|
FALSE on error
|
|
Cond: --
|
|
*/
|
|
BOOL
|
|
PRIVATE
|
|
OLD_OpenCommonResponsesKey(
|
|
IN HKEY hkeyDrv,
|
|
OUT PHKEY phkeyResp)
|
|
{
|
|
BOOL bRet = FALSE; // assume failure
|
|
LONG lErr;
|
|
TCHAR szComDrv[MAX_REG_KEY_LEN];
|
|
TCHAR szPath[2*MAX_REG_KEY_LEN];
|
|
|
|
*phkeyResp = NULL;
|
|
|
|
// Get the name (*old style*) of the common driver key.
|
|
if (!OLD_GetCommonDriverKeyName(hkeyDrv, sizeof(szComDrv), szComDrv))
|
|
{
|
|
TRACE_MSG(TF_ERROR, "OLD_GetCommonDriverKeyName() failed.");
|
|
goto exit;
|
|
}
|
|
|
|
TRACE_MSG(TF_WARNING, "OLD_GetCommonDriverKeyName(): %s", szComDrv);
|
|
|
|
// Construct the path to the (*old style*) Responses key.
|
|
lstrcpy(szPath, DRIVER_KEY TEXT("\\"));
|
|
lstrcat(szPath, szComDrv);
|
|
lstrcat(szPath, RESPONSES_KEY);
|
|
|
|
// Open the (*old style*) Responses key.
|
|
lErr = RegOpenKeyEx(HKEY_LOCAL_MACHINE, szPath, 0, KEY_READ, phkeyResp);
|
|
|
|
if (lErr != ERROR_SUCCESS)
|
|
{
|
|
TRACE_MSG(TF_ERROR, "RegOpenKeyEx(Responses) failed: %#08lx.", lErr);
|
|
goto exit;
|
|
}
|
|
|
|
bRet = TRUE;
|
|
|
|
exit:
|
|
return(bRet);
|
|
}
|
|
|
|
|
|
/*----------------------------------------------------------
|
|
Purpose: This function finds the name of the common driver
|
|
type key for the given driver. First it'll look for
|
|
the new style key name ("ResponsesKeyName" value),
|
|
and if that doesn't exist then it'll look for the
|
|
old style key name ("Description" value), both of
|
|
which are stored in the driver node.
|
|
|
|
NOTE: The given driver key handle is assumed to contain
|
|
at least the Description value.
|
|
|
|
Returns: TRUE on success
|
|
FALSE on error
|
|
Cond: --
|
|
*/
|
|
BOOL
|
|
PUBLIC
|
|
FindCommonDriverKeyName(
|
|
IN HKEY hkeyDrv,
|
|
IN DWORD cbKeyName,
|
|
OUT LPTSTR pszKeyName)
|
|
{
|
|
BOOL bRet = TRUE; // assume *success*
|
|
LONG lErr;
|
|
|
|
// Is the (new style) key name is registered in the driver node?
|
|
lErr = RegQueryValueEx(hkeyDrv, c_szRespKeyName, NULL, NULL,
|
|
(LPBYTE)pszKeyName, &cbKeyName);
|
|
if (lErr == ERROR_SUCCESS)
|
|
{
|
|
goto exit;
|
|
}
|
|
|
|
// No. The key name will be in the old style: just the Description.
|
|
lErr = RegQueryValueEx(hkeyDrv, c_szDriverDesc, NULL, NULL,
|
|
(LPBYTE)pszKeyName, &cbKeyName);
|
|
if (lErr == ERROR_SUCCESS)
|
|
{
|
|
goto exit;
|
|
}
|
|
|
|
// Couldn't get a key name!! Something's wrong....
|
|
ASSERT(0);
|
|
bRet = FALSE;
|
|
|
|
exit:
|
|
return(bRet);
|
|
}
|
|
|
|
|
|
/*----------------------------------------------------------
|
|
Purpose: This function returns the name of the common driver
|
|
type key for the given driver. The key name is the
|
|
concatenation of 3 strings found in the driver node
|
|
of the registry: the driver description, the manu-
|
|
facturer, and the provider. (The driver description
|
|
is used since it's unique per driver but not per
|
|
installation (the "friendly" name is the latter).
|
|
|
|
NOTE: The component substrings are either read from the
|
|
driver's registry key, or from the given driver info
|
|
data. If pdrvData is given, the strings it contains
|
|
are assumed to be valid (non-NULL).
|
|
|
|
Returns: TRUE on success
|
|
FALSE on error
|
|
Cond: --
|
|
*/
|
|
BOOL
|
|
PUBLIC
|
|
GetCommonDriverKeyName(
|
|
IN HKEY hkeyDrv, OPTIONAL
|
|
IN PSP_DRVINFO_DATA pdrvData, OPTIONAL
|
|
IN DWORD cbKeyName,
|
|
OUT LPTSTR pszKeyName)
|
|
{
|
|
BOOL bRet = FALSE; // assume failure
|
|
LONG lErr;
|
|
DWORD dwByteCount, cbData;
|
|
TCHAR szDescription[MAX_REG_KEY_LEN];
|
|
TCHAR szManufacturer[MAX_REG_KEY_LEN];
|
|
TCHAR szProvider[MAX_REG_KEY_LEN];
|
|
LPTSTR lpszDesc, lpszMfct, lpszProv;
|
|
|
|
dwByteCount = 0;
|
|
lpszDesc = NULL;
|
|
lpszMfct = NULL;
|
|
lpszProv = NULL;
|
|
|
|
if (hkeyDrv)
|
|
{
|
|
// First see if it's already been registered in the driver node.
|
|
lErr = RegQueryValueEx(hkeyDrv, c_szRespKeyName, NULL, NULL,
|
|
(LPBYTE)pszKeyName, &cbKeyName);
|
|
if (lErr == ERROR_SUCCESS)
|
|
{
|
|
bRet = TRUE;
|
|
goto exit;
|
|
}
|
|
|
|
// Responses key doesn't exist - read its components from the registry.
|
|
cbData = sizeof(szDescription);
|
|
lErr = RegQueryValueEx(hkeyDrv, c_szDriverDesc, NULL, NULL,
|
|
(LPBYTE)szDescription, &cbData);
|
|
if (lErr == ERROR_SUCCESS)
|
|
{
|
|
// Is the Description string *alone* too long to be a key name?
|
|
// If so then we're hosed - fail the call.
|
|
if (cbData > CB_MAX_REG_KEY_LEN)
|
|
{
|
|
goto exit;
|
|
}
|
|
|
|
dwByteCount = cbData;
|
|
lpszDesc = szDescription;
|
|
|
|
cbData = sizeof(szManufacturer);
|
|
lErr = RegQueryValueEx(hkeyDrv, c_szManufacturer, NULL, NULL,
|
|
(LPBYTE)szManufacturer, &cbData);
|
|
if (lErr == ERROR_SUCCESS)
|
|
{
|
|
// only use the manufacturer name if total string size is ok
|
|
cbData += sizeof(c_szSeparator);
|
|
if ((dwByteCount + cbData) <= CB_MAX_REG_KEY_LEN)
|
|
{
|
|
dwByteCount += cbData;
|
|
lpszMfct = szManufacturer;
|
|
}
|
|
}
|
|
|
|
cbData = sizeof(szProvider);
|
|
lErr = RegQueryValueEx(hkeyDrv, REGSTR_VAL_PROVIDER_NAME, NULL, NULL,
|
|
(LPBYTE)szProvider, &cbData);
|
|
if (lErr == ERROR_SUCCESS)
|
|
{
|
|
// only use the provider name if total string size is ok
|
|
cbData += sizeof(c_szSeparator);
|
|
if ((dwByteCount + cbData) <= CB_MAX_REG_KEY_LEN)
|
|
{
|
|
dwByteCount += cbData;
|
|
lpszProv = szProvider;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Weren't able to read key name components out of the driver node.
|
|
// Get them from the driver info data if one was given.
|
|
if (pdrvData && !dwByteCount)
|
|
{
|
|
lpszDesc = pdrvData->Description;
|
|
|
|
if (!lpszDesc || !lpszDesc[0])
|
|
{
|
|
// Didn't get a Description string. Fail the call.
|
|
goto exit;
|
|
}
|
|
|
|
dwByteCount = CbFromCch(lstrlen(lpszDesc)+1);
|
|
|
|
// Is the Description string *alone* too long to be a key name?
|
|
// If so then we're hosed - fail the call.
|
|
if (dwByteCount > CB_MAX_REG_KEY_LEN)
|
|
{
|
|
goto exit;
|
|
}
|
|
|
|
cbData = sizeof(c_szSeparator)
|
|
+ CbFromCch(lstrlen(pdrvData->MfgName)+1);
|
|
if ((dwByteCount + cbData) <= CB_MAX_REG_KEY_LEN)
|
|
{
|
|
dwByteCount += cbData;
|
|
lpszMfct = pdrvData->MfgName;
|
|
}
|
|
|
|
cbData = sizeof(c_szSeparator)
|
|
+ CbFromCch(lstrlen(pdrvData->ProviderName)+1);
|
|
if ((dwByteCount + cbData) <= CB_MAX_REG_KEY_LEN)
|
|
{
|
|
dwByteCount += cbData;
|
|
lpszProv = pdrvData->ProviderName;
|
|
}
|
|
}
|
|
|
|
// By now we should have a Description string. If not, fail the call.
|
|
if (!lpszDesc || !lpszDesc[0])
|
|
{
|
|
goto exit;
|
|
}
|
|
|
|
// Construct the key name string out of its components.
|
|
lstrcpy(pszKeyName, lpszDesc);
|
|
|
|
if (lpszMfct && *lpszMfct)
|
|
{
|
|
lstrcat(pszKeyName, c_szSeparator);
|
|
lstrcat(pszKeyName, lpszMfct);
|
|
}
|
|
|
|
if (lpszProv && *lpszProv)
|
|
{
|
|
lstrcat(pszKeyName, c_szSeparator);
|
|
lstrcat(pszKeyName, lpszProv);
|
|
}
|
|
|
|
// Write the key name to the driver node (we know it's not there already).
|
|
if (hkeyDrv)
|
|
{
|
|
lErr = RegSetValueEx(hkeyDrv, c_szRespKeyName, 0, REG_SZ,
|
|
(LPBYTE)pszKeyName, CbFromCch(lstrlen(pszKeyName)+1));
|
|
if (lErr != ERROR_SUCCESS)
|
|
{
|
|
TRACE_MSG(TF_ERROR, "RegSetValueEx(RespKeyName) failed: %#08lx.", lErr);
|
|
ASSERT(0);
|
|
}
|
|
}
|
|
|
|
bRet = TRUE;
|
|
|
|
exit:
|
|
return(bRet);
|
|
|
|
}
|
|
|
|
|
|
/*----------------------------------------------------------
|
|
Purpose: This function creates the common driver type key
|
|
for the given driver, or opens it if it already
|
|
exists, with the requested access.
|
|
|
|
NOTE: Either hkeyDrv or pdrvData must be provided.
|
|
|
|
Returns: TRUE on success
|
|
FALSE on error
|
|
Cond: --
|
|
*/
|
|
BOOL
|
|
PUBLIC
|
|
OpenCommonDriverKey(
|
|
IN HKEY hkeyDrv, OPTIONAL
|
|
IN PSP_DRVINFO_DATA pdrvData, OPTIONAL
|
|
IN REGSAM samAccess,
|
|
OUT PHKEY phkeyComDrv)
|
|
{
|
|
BOOL bRet = FALSE; // assume failure
|
|
LONG lErr;
|
|
HKEY hkeyDrvInfo = NULL;
|
|
TCHAR szComDrv[MAX_REG_KEY_LEN];
|
|
TCHAR szPath[2*MAX_REG_KEY_LEN];
|
|
DWORD dwDisp;
|
|
|
|
if (!GetCommonDriverKeyName(hkeyDrv, pdrvData, sizeof(szComDrv), szComDrv))
|
|
{
|
|
TRACE_MSG(TF_ERROR, "GetCommonDriverKeyName() failed.");
|
|
goto exit;
|
|
}
|
|
|
|
TRACE_MSG(TF_WARNING, "GetCommonDriverKeyName(): %s", szComDrv);
|
|
|
|
// Construct the path to the common driver key.
|
|
lstrcpy(szPath, DRIVER_KEY TEXT("\\"));
|
|
lstrcat(szPath, szComDrv);
|
|
|
|
// Create the common driver key - it'll be opened if it already exists.
|
|
lErr = RegCreateKeyEx(HKEY_LOCAL_MACHINE, szPath, 0, NULL,
|
|
REG_OPTION_NON_VOLATILE, samAccess, NULL, phkeyComDrv, &dwDisp);
|
|
if (lErr != ERROR_SUCCESS)
|
|
{
|
|
TRACE_MSG(TF_ERROR, "RegCreateKeyEx(%s) failed: %#08lx.", szPath, lErr);
|
|
goto exit;
|
|
}
|
|
|
|
bRet = TRUE;
|
|
|
|
exit:
|
|
return(bRet);
|
|
|
|
}
|
|
|
|
|
|
/*----------------------------------------------------------
|
|
Purpose: This function opens or creates the common Responses
|
|
key for the given driver, based on the given flags.
|
|
|
|
Returns: TRUE on success
|
|
FALSE on error
|
|
Cond: --
|
|
*/
|
|
BOOL
|
|
PUBLIC
|
|
OpenCommonResponsesKey(
|
|
IN HKEY hkeyDrv,
|
|
IN CKFLAGS ckFlags,
|
|
IN REGSAM samAccess,
|
|
OUT PHKEY phkeyResp,
|
|
OUT LPDWORD lpdwExisted)
|
|
{
|
|
BOOL bRet = FALSE; // assume failure
|
|
LONG lErr;
|
|
HKEY hkeyComDrv = NULL;
|
|
DWORD dwRefCount, cbData;
|
|
|
|
*phkeyResp = NULL;
|
|
|
|
if (!OpenCommonDriverKey(hkeyDrv, NULL, KEY_ALL_ACCESS, &hkeyComDrv))
|
|
{
|
|
TRACE_MSG(TF_ERROR, "OpenCommonDriverKey() failed.");
|
|
goto exit;
|
|
}
|
|
|
|
if ((CKFLAG_OPEN | CKFLAG_CREATE) == (ckFlags & (CKFLAG_OPEN | CKFLAG_CREATE)))
|
|
{
|
|
ckFlags &= ~CKFLAG_CREATE;
|
|
}
|
|
|
|
// Create or open the common Responses key.
|
|
if (ckFlags & CKFLAG_OPEN)
|
|
{
|
|
lErr = RegOpenKeyEx(hkeyComDrv, c_szResponses, 0, samAccess, phkeyResp);
|
|
if (lErr != ERROR_SUCCESS)
|
|
{
|
|
TRACE_MSG(TF_ERROR, "RegOpenKeyEx(common drv) failed: %#08lx.", lErr);
|
|
ckFlags &= ~CKFLAG_OPEN;
|
|
ckFlags |= CKFLAG_CREATE;
|
|
}
|
|
}
|
|
|
|
if (ckFlags & CKFLAG_CREATE)
|
|
{
|
|
lErr = RegCreateKeyEx(hkeyComDrv, c_szResponses, 0, NULL,
|
|
REG_OPTION_NON_VOLATILE, samAccess, NULL, phkeyResp, lpdwExisted);
|
|
if (lErr != ERROR_SUCCESS)
|
|
{
|
|
TRACE_MSG(TF_ERROR, "RegCreateKeyEx(%s) failed: %#08lx.", c_szResponses, lErr);
|
|
ASSERT(0);
|
|
goto exit;
|
|
}
|
|
|
|
// Create or increment a common Responses key reference count value.
|
|
cbData = sizeof(dwRefCount);
|
|
if (*lpdwExisted == REG_OPENED_EXISTING_KEY)
|
|
{
|
|
lErr = RegQueryValueEx(hkeyComDrv, c_szRefCount, NULL, NULL,
|
|
(LPBYTE)&dwRefCount, &cbData);
|
|
|
|
// To accomodate modems installed before this reference count
|
|
// mechanism was added (post-Beta2), if the reference count doesn't
|
|
// exist then just ignore it & install anyways. In this case the
|
|
// shared Responses key will never be removed.
|
|
if (lErr == ERROR_SUCCESS)
|
|
{
|
|
ASSERT(dwRefCount); // expecting non-0 ref count
|
|
ASSERT(cbData == sizeof(DWORD)); // expecting DWORD ref count
|
|
dwRefCount++; // increment ref count
|
|
}
|
|
else
|
|
{
|
|
if (lErr == ERROR_FILE_NOT_FOUND)
|
|
dwRefCount = 0;
|
|
else
|
|
{
|
|
// some error other than key doesn't exist
|
|
TRACE_MSG(TF_ERROR, "RegQueryValueEx(RefCount) failed: %#08lx.", lErr);
|
|
goto exit;
|
|
}
|
|
}
|
|
}
|
|
else dwRefCount = 1;
|
|
|
|
if (dwRefCount)
|
|
{
|
|
lErr = RegSetValueEx(hkeyComDrv, c_szRefCount, 0, REG_DWORD,
|
|
(LPBYTE)&dwRefCount, cbData);
|
|
if (lErr != ERROR_SUCCESS)
|
|
{
|
|
TRACE_MSG(TF_ERROR, "RegSetValueEx(RefCount) failed: %#08lx.", lErr);
|
|
ASSERT(0);
|
|
goto exit;
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
bRet = TRUE;
|
|
|
|
exit:
|
|
if (!bRet)
|
|
{
|
|
// something failed - close any open Responses key
|
|
if (*phkeyResp)
|
|
RegCloseKey(*phkeyResp);
|
|
}
|
|
|
|
if (hkeyComDrv)
|
|
RegCloseKey(hkeyComDrv);
|
|
|
|
return(bRet);
|
|
|
|
}
|
|
|
|
|
|
/*----------------------------------------------------------
|
|
Purpose: This function finds the Responses key for the given
|
|
modem driver and returns an open hkey to it. The
|
|
Responses key may exist in the common driver type
|
|
key, or it may be in the individual driver key.
|
|
The key is opened with READ access.
|
|
|
|
Returns: TRUE on success
|
|
FALSE on error
|
|
Cond: --
|
|
*/
|
|
BOOL
|
|
PUBLIC
|
|
OpenResponsesKey(
|
|
IN HKEY hkeyDrv,
|
|
OUT PHKEY phkeyResp)
|
|
{
|
|
LONG lErr;
|
|
|
|
// Try to open the common Responses subkey.
|
|
if (!OpenCommonResponsesKey(hkeyDrv, CKFLAG_OPEN, KEY_READ, phkeyResp, NULL))
|
|
{
|
|
TRACE_MSG(TF_ERROR, "OpenCommonResponsesKey() failed, assume non-existent.");
|
|
|
|
// Failing that, open the *old style* common Responses subkey.
|
|
if (!OLD_OpenCommonResponsesKey(hkeyDrv, phkeyResp))
|
|
{
|
|
// Failing that, try to open a Responses subkey in the driver node.
|
|
lErr = RegOpenKeyEx(hkeyDrv, c_szResponses, 0, KEY_READ, phkeyResp);
|
|
if (lErr != ERROR_SUCCESS)
|
|
{
|
|
TRACE_MSG(TF_ERROR, "RegOpenKeyEx() failed: %#08lx.", lErr);
|
|
return (FALSE);
|
|
}
|
|
}
|
|
}
|
|
|
|
return(TRUE);
|
|
|
|
}
|
|
|
|
|
|
/*----------------------------------------------------------
|
|
Purpose: This function deletes a registry key and all of
|
|
its subkeys. A registry key that is opened by an
|
|
application can be deleted without error by another
|
|
application in both Windows 95 and Windows NT.
|
|
This is by design. This code makes no attempt to
|
|
check or recover from partial deletions.
|
|
|
|
NOTE: Adapted from sample code in the MSDN Knowledge Base
|
|
article #Q142491.
|
|
|
|
Returns: ERROR_SUCCESS on success
|
|
WIN32 error code on error
|
|
Cond: --
|
|
*/
|
|
DWORD
|
|
PRIVATE
|
|
RegDeleteKeyNT(
|
|
IN HKEY hStartKey,
|
|
IN LPTSTR pKeyName)
|
|
{
|
|
DWORD dwRtn, dwSubKeyLength;
|
|
LPTSTR pSubKey = NULL;
|
|
TCHAR szSubKey[MAX_REG_KEY_LEN]; // this should be dynamic.
|
|
HKEY hKey;
|
|
|
|
// do not allow NULL or empty key name
|
|
if (pKeyName && lstrlen(pKeyName))
|
|
{
|
|
if ((dwRtn = RegOpenKeyEx(hStartKey, pKeyName,
|
|
0, KEY_ALL_ACCESS, &hKey)) == ERROR_SUCCESS)
|
|
{
|
|
while (dwRtn == ERROR_SUCCESS)
|
|
{
|
|
dwSubKeyLength = sizeof(szSubKey) / sizeof(TCHAR);
|
|
dwRtn = RegEnumKeyEx( hKey,
|
|
0, // always index zero
|
|
szSubKey,
|
|
&dwSubKeyLength,
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
NULL );
|
|
|
|
if (dwRtn == ERROR_NO_MORE_ITEMS)
|
|
{
|
|
dwRtn = RegDeleteKey(hStartKey, pKeyName);
|
|
break;
|
|
}
|
|
else if (dwRtn == ERROR_SUCCESS)
|
|
dwRtn = RegDeleteKeyNT(hKey, szSubKey);
|
|
}
|
|
|
|
RegCloseKey(hKey);
|
|
// Do not save return code because error
|
|
// has already occurred
|
|
}
|
|
}
|
|
else
|
|
dwRtn = ERROR_BADKEY;
|
|
|
|
return dwRtn;
|
|
}
|
|
|
|
|
|
/*----------------------------------------------------------
|
|
Purpose: This function deletes the common driver key (or
|
|
decrements its reference count) associated with the
|
|
driver given by name.
|
|
|
|
Returns: TRUE on success
|
|
FALSE on error
|
|
Cond: --
|
|
*/
|
|
BOOL
|
|
PUBLIC
|
|
DeleteCommonDriverKeyByName(
|
|
IN LPTSTR pszKeyName)
|
|
{
|
|
BOOL bRet = FALSE; // assume failure
|
|
LONG lErr;
|
|
TCHAR szPath[2*MAX_REG_KEY_LEN];
|
|
HKEY hkeyComDrv, hkeyPrnt;
|
|
DWORD dwRefCount, cbData;
|
|
|
|
// Construct the path to the driver's common key and open it.
|
|
lstrcpy(szPath, DRIVER_KEY TEXT("\\"));
|
|
lstrcat(szPath, pszKeyName);
|
|
|
|
lErr = RegOpenKeyEx(HKEY_LOCAL_MACHINE, szPath, 0, KEY_ALL_ACCESS,
|
|
&hkeyComDrv);
|
|
if (lErr != ERROR_SUCCESS)
|
|
{
|
|
TRACE_MSG(TF_ERROR, "RegOpenKeyEx() failed: %#08lx.", lErr);
|
|
goto exit;
|
|
}
|
|
|
|
// Check the common driver key reference count and decrement
|
|
// it or delete the key (& the Responses subkey).
|
|
cbData = sizeof(dwRefCount);
|
|
lErr = RegQueryValueEx(hkeyComDrv, c_szRefCount, NULL, NULL,
|
|
(LPBYTE)&dwRefCount, &cbData);
|
|
|
|
// To accomodate modems installed before this reference count
|
|
// mechanism was added (post-Beta2), if the reference count doesn't
|
|
// exist then just ignore it. In this case the shared Responses key
|
|
// will never be removed.
|
|
if (lErr == ERROR_SUCCESS)
|
|
{
|
|
ASSERT(dwRefCount); // expecting non-0 ref count
|
|
if (--dwRefCount)
|
|
{
|
|
lErr = RegSetValueEx(hkeyComDrv, c_szRefCount, 0, REG_DWORD,
|
|
(LPBYTE)&dwRefCount, cbData);
|
|
if (lErr != ERROR_SUCCESS)
|
|
{
|
|
TRACE_MSG(TF_ERROR, "RegSetValueEx(RefCount) failed: %#08lx.", lErr);
|
|
ASSERT(0);
|
|
goto exit;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
lErr = RegOpenKeyEx(HKEY_LOCAL_MACHINE, DRIVER_KEY, 0,
|
|
KEY_ENUMERATE_SUB_KEYS, &hkeyPrnt);
|
|
if (lErr != ERROR_SUCCESS)
|
|
{
|
|
TRACE_MSG(TF_ERROR, "RegOpenKeyEx(Prnt) failed: %#08lx.", lErr);
|
|
goto exit;
|
|
}
|
|
|
|
lErr = RegDeleteKeyNT(hkeyPrnt, pszKeyName);
|
|
|
|
if (lErr != ERROR_SUCCESS)
|
|
{
|
|
TRACE_MSG(TF_ERROR, "RegDeleteKeyNT(ComDrv) failed: %#08lx.", lErr);
|
|
goto exit;
|
|
}
|
|
}
|
|
}
|
|
else if (lErr != ERROR_FILE_NOT_FOUND)
|
|
{
|
|
// some error other than key doesn't exist
|
|
TRACE_MSG(TF_ERROR, "RegQueryValueEx(RefCount) failed: %#08lx.", lErr);
|
|
goto exit;
|
|
}
|
|
|
|
bRet = TRUE;
|
|
|
|
exit:
|
|
return(bRet);
|
|
|
|
}
|
|
|
|
|
|
/*----------------------------------------------------------
|
|
Purpose: This function deletes the common driver key (or
|
|
decrements its reference count) associated with the
|
|
driver given by driver key.
|
|
|
|
Returns: TRUE on success
|
|
FALSE on error
|
|
Cond: --
|
|
*/
|
|
BOOL
|
|
PUBLIC
|
|
DeleteCommonDriverKey(
|
|
IN HKEY hkeyDrv)
|
|
{
|
|
BOOL bRet = FALSE;
|
|
TCHAR szComDrv[MAX_REG_KEY_LEN];
|
|
|
|
|
|
// Get the name of the common driver key for this driver.
|
|
if (!GetCommonDriverKeyName(hkeyDrv, NULL, sizeof(szComDrv), szComDrv))
|
|
{
|
|
TRACE_MSG(TF_ERROR, "GetCommonDriverKeyName() failed.");
|
|
goto exit;
|
|
}
|
|
|
|
if (!DeleteCommonDriverKeyByName(szComDrv))
|
|
{
|
|
TRACE_MSG(TF_ERROR, "DeleteCommonDriverKey() failed.");
|
|
}
|
|
|
|
bRet = TRUE;
|
|
|
|
exit:
|
|
return(bRet);
|
|
|
|
}
|