public static StringCollection GetDcSiteCoverage(string fqdn)
{
if (string.IsNullOrEmpty(fqdn))
{
throw new ArgumentNullException("fqdn");
}
StringCollection stringCollection = new StringCollection();
SafeDsSiteNameHandle safeDsSiteNameHandle = null;
long num = 0L;
try
{
int num2 = NativeMethods.DsGetDcSiteCoverage(fqdn, out num, out safeDsSiteNameHandle);
if (num2 != 0)
{
throw new CannotGetSiteInfoException(DirectoryStrings.CannotGetSiteInfo(num2.ToString("X")));
}
int num3 = 0;
while ((long)num3 < num)
{
stringCollection.Add(Marshal.PtrToStringAuto(Marshal.ReadIntPtr(safeDsSiteNameHandle.DangerousGetHandle(), num3 * IntPtr.Size)));
num3++;
}
}
finally
{
if (safeDsSiteNameHandle != null)
{
safeDsSiteNameHandle.Dispose();
}
}
return(stringCollection);
}
public string GetSiteNameHookable(bool throwOnErrorNoSite = false)
{
SafeDsSiteNameHandle safeDsSiteNameHandle = null;
string result;
try
{
int num = NativeMethods.DsGetSiteName(null, out safeDsSiteNameHandle);
if (num == NativeMethods.ERROR_NO_SITE)
{
if (throwOnErrorNoSite)
{
throw new CannotGetSiteInfoException(DirectoryStrings.CannotGetUsefulSiteInfo)
{
ErrorCode = num
};
}
result = null;
}
else
{
if (num != 0)
{
throw new CannotGetSiteInfoException(DirectoryStrings.CannotGetSiteInfo(num.ToString("X")))
{
ErrorCode = num
};
}
result = Marshal.PtrToStringUni(safeDsSiteNameHandle.DangerousGetHandle());
}
}
finally
{
if (safeDsSiteNameHandle != null)
{
safeDsSiteNameHandle.Dispose();
}
}
return(result);
}
internal static extern int DsGetDcSiteCoverage([MarshalAs(UnmanagedType.LPTStr)] string ServerName, out long EntryCount, out SafeDsSiteNameHandle SiteNames);
internal static extern int DsGetSiteName(string server, out SafeDsSiteNameHandle siteName);
