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setupapi: Merge _SP_DRVINFO_DETAIL_DATA and DrvInfoDetailData

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Signed-off-by: Simon Rozman <simon@rozman.si>
This commit is contained in:
Simon Rozman
2019-02-07 23:45:11 +01:00
parent b662896cf4
commit c4988999ac
4 changed files with 60 additions and 55 deletions
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24
tun/wintun/setupapi/setupapi_windows.go
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@@ -146,36 +146,38 @@ func (deviceInfoSet DevInfo) SetSelectedDriver(deviceInfoData *DevInfoData, driv
return SetupDiSetSelectedDriver(deviceInfoSet, deviceInfoData, driverInfoData)
}
//sys setupDiGetDriverInfoDetail(deviceInfoSet DevInfo, deviceInfoData *DevInfoData, driverInfoData *DrvInfoData, driverInfoDetailData *_SP_DRVINFO_DETAIL_DATA, driverInfoDetailDataSize uint32, requiredSize *uint32) (err error) = setupapi.SetupDiGetDriverInfoDetailW
//sys setupDiGetDriverInfoDetail(deviceInfoSet DevInfo, deviceInfoData *DevInfoData, driverInfoData *DrvInfoData, driverInfoDetailData *DrvInfoDetailData, driverInfoDetailDataSize uint32, requiredSize *uint32) (err error) = setupapi.SetupDiGetDriverInfoDetailW
// SetupDiGetDriverInfoDetail function retrieves driver information detail for a device information set or a particular device information element in the device information set.
func SetupDiGetDriverInfoDetail(deviceInfoSet DevInfo, deviceInfoData *DevInfoData, driverInfoData *DrvInfoData) (driverInfoDetailData *DrvInfoDetailData, err error) {
func SetupDiGetDriverInfoDetail(deviceInfoSet DevInfo, deviceInfoData *DevInfoData, driverInfoData *DrvInfoData) (*DrvInfoDetailData, error) {
const bufCapacity = 0x800
buf := [bufCapacity]byte{}
var bufLen uint32
_data := (*_SP_DRVINFO_DETAIL_DATA)(unsafe.Pointer(&buf[0]))
_data.Size = uint32(unsafe.Sizeof(*_data))
data := (*DrvInfoDetailData)(unsafe.Pointer(&buf[0]))
data.size = uint32(unsafe.Sizeof(*data))
err = setupDiGetDriverInfoDetail(deviceInfoSet, deviceInfoData, driverInfoData, _data, bufCapacity, &bufLen)
err := setupDiGetDriverInfoDetail(deviceInfoSet, deviceInfoData, driverInfoData, data, bufCapacity, &bufLen)
if err == nil {
// The buffer was was sufficiently big.
return _data.toGo(bufLen), nil
data.size = bufLen
return data, nil
}
if errWin, ok := err.(syscall.Errno); ok && errWin == windows.ERROR_INSUFFICIENT_BUFFER {
// The buffer was too small. Now that we got the required size, create another one big enough and retry.
buf := make([]byte, bufLen)
_data := (*_SP_DRVINFO_DETAIL_DATA)(unsafe.Pointer(&buf[0]))
_data.Size = uint32(unsafe.Sizeof(*_data))
data := (*DrvInfoDetailData)(unsafe.Pointer(&buf[0]))
data.size = uint32(unsafe.Sizeof(*data))
err = setupDiGetDriverInfoDetail(deviceInfoSet, deviceInfoData, driverInfoData, _data, bufLen, &bufLen)
err = setupDiGetDriverInfoDetail(deviceInfoSet, deviceInfoData, driverInfoData, data, bufLen, &bufLen)
if err == nil {
return _data.toGo(bufLen), nil
data.size = bufLen
return data, nil
}
}
return
return nil, err
}
// GetDriverInfoDetail method retrieves driver information detail for a device information set or a particular device information element in the device information set.