internal static FixedInfo GetFixedInfo()
{
uint size = 0;
SafeLocalFree buffer = null;
FixedInfo fixedInfo = new FixedInfo();
//first we need to get the size of the buffer
uint result = UnsafeNetInfoNativeMethods.GetNetworkParams(SafeLocalFree.Zero, ref size);
while (result == IpHelperErrors.ErrorBufferOverflow)
{
try {
//now we allocate the buffer and read the network parameters.
buffer = SafeLocalFree.LocalAlloc((int)size);
result = UnsafeNetInfoNativeMethods.GetNetworkParams(buffer, ref size);
if (result == IpHelperErrors.Success)
{
fixedInfo = new FixedInfo((FIXED_INFO)Marshal.PtrToStructure(buffer.DangerousGetHandle(), typeof(FIXED_INFO)));
}
}
finally {
if (buffer != null)
{
buffer.Close();
}
}
}
//if the result include there being no information, we'll still throw
if (result != IpHelperErrors.Success)
{
throw new NetworkInformationException((int)result);
}
return(fixedInfo);
}
internal static System.Net.NetworkInformation.FixedInfo GetFixedInfo()
{
uint pOutBufLen = 0;
SafeLocalFree pFixedInfo = null;
System.Net.NetworkInformation.FixedInfo info = new System.Net.NetworkInformation.FixedInfo();
uint networkParams = UnsafeNetInfoNativeMethods.GetNetworkParams(SafeLocalFree.Zero, ref pOutBufLen);
while (networkParams == 0x6f)
{
try
{
pFixedInfo = SafeLocalFree.LocalAlloc((int)pOutBufLen);
networkParams = UnsafeNetInfoNativeMethods.GetNetworkParams(pFixedInfo, ref pOutBufLen);
if (networkParams == 0)
{
info = new System.Net.NetworkInformation.FixedInfo((FIXED_INFO)Marshal.PtrToStructure(pFixedInfo.DangerousGetHandle(), typeof(FIXED_INFO)));
}
continue;
}
finally
{
if (pFixedInfo != null)
{
pFixedInfo.Close();
}
}
}
if (networkParams != 0)
{
throw new NetworkInformationException((int)networkParams);
}
return(info);
}