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setupapi: safer aliasing of slice types

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This commit is contained in:
Jason A. Donenfeld
2019-05-03 09:34:00 +02:00
parent 2e988467c2
commit 81ca08f1b3
5 changed files with 40 additions and 23 deletions
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6
tun/wintun/wintun_windows.go
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@@ -218,11 +218,7 @@ func CreateInterface(description string, hwndParent uintptr) (*Wintun, bool, err
}
// Set Plug&Play device hardware ID property.
hwid, err := syscall.UTF16FromString(hardwareID)
if err != nil {
return nil, false, err // syscall.UTF16FromString(hardwareID) should never fail: hardwareID is const string without NUL chars.
}
err = devInfoList.SetDeviceRegistryProperty(deviceData, setupapi.SPDRP_HARDWAREID, setupapi.UTF16ToBuf(append(hwid, 0)))
err = devInfoList.SetDeviceRegistryPropertyString(deviceData, setupapi.SPDRP_HARDWAREID, hardwareID)
if err != nil {
return nil, false, errors.New("SetupDiSetDeviceRegistryProperty(SPDRP_HARDWAREID) failed: " + err.Error())
}