private bool SetOwner(string strUserName)
{
bool res = false;
// Do we have the required Privilege?
if (SetPrivileges())
{
int sid_len = NativeMethods.SID_SIZE;
IntPtr pNewOwner = Marshal.AllocHGlobal(sid_len);
int domain_len = DOMAIN_NAME_SIZE;
string domain_name = new string(' ', domain_len + 1);
NativeMethods.SID_NAME_USE deUse = NativeMethods.SID_NAME_USE.SidTypeUndefined;
res = (NativeMethods.LookupAccountName(null, strUserName, pNewOwner, ref sid_len, domain_name, ref domain_len, ref deUse) != 0);
if (res)
{
#if DEBUG
domain_name = domain_name.Substring(0, domain_len);
#endif
int r = NativeMethods.SetNamedSecurityInfo(path, NativeMethods.SE_OBJECT_TYPE.SE_FILE_OBJECT, NativeMethods.OWNER_SECURITY_INFORMATION, pNewOwner, IntPtr.Zero, IntPtr.Zero, IntPtr.Zero);
if (r != NativeMethods.ERROR_SUCCESS)
{
res = false;
opError.Append(ERROR_MESSAGE_DELIMITER + "SetNamedSecurityInfo:" + GetLastErrorString(r));
}
}
else
{
opError.Append(ERROR_MESSAGE_DELIMITER + "LookupAccountName:" + GetLastErrorString());
}
Marshal.FreeHGlobal(pNewOwner);
}
return(res);
}
public string ConvertStringSidToAccountName(string sid, out string domain)
{
NativeMethods.SID_NAME_USE sIDNAMEUSE = 0;
int lastWin32Error = 0;
IntPtr intPtr = new IntPtr(0);
byte[] numArray = null;
try
{
if (NativeMethods.ConvertStringSidToSid(sid, out intPtr))
{
int lengthSid = NativeMethods.GetLengthSid(intPtr);
numArray = new byte[lengthSid];
Marshal.Copy(intPtr, numArray, 0, lengthSid);
}
else
{
lastWin32Error = Marshal.GetLastWin32Error();
object[] systemErrorMessage = new object[1];
systemErrorMessage[0] = ActiveDirectoryHelper.GetSystemErrorMessage(lastWin32Error);
throw new ArgumentException(string.Format(CultureInfo.CurrentCulture, Resources.SidToAccountConvertError, systemErrorMessage));
}
}
finally
{
NativeMethods.LocalFree(intPtr);
}
StringBuilder stringBuilder = new StringBuilder();
int capacity = stringBuilder.Capacity;
StringBuilder stringBuilder1 = new StringBuilder();
int num = stringBuilder1.Capacity;
if (!NativeMethods.LookupAccountSid(null, numArray, stringBuilder, ref capacity, stringBuilder1, ref num, out sIDNAMEUSE))
{
lastWin32Error = Marshal.GetLastWin32Error();
if (lastWin32Error == 122)
{
stringBuilder.EnsureCapacity(capacity);
stringBuilder1.EnsureCapacity(num);
lastWin32Error = 0;
if (!NativeMethods.LookupAccountSid(null, numArray, stringBuilder, ref capacity, stringBuilder1, ref num, out sIDNAMEUSE))
{
lastWin32Error = Marshal.GetLastWin32Error();
}
}
}
if (lastWin32Error != 0)
{
object[] objArray = new object[1];
objArray[0] = ActiveDirectoryHelper.GetSystemErrorMessage(lastWin32Error);
throw new ArgumentException(string.Format(CultureInfo.CurrentCulture, Resources.SidToAccountConvertError, objArray));
}
else
{
if (!sid.StartsWith(BUILTIN_DOMAIN_SID_PREFIX, StringComparison.OrdinalIgnoreCase))
{
domain = stringBuilder1.ToString();
}
else
{
domain = Environment.MachineName;
}
return(stringBuilder.ToString());
}
}
public static extern bool LookupAccountSid(string lpSystemName, byte[] Sid, StringBuilder lpName, ref int cchName, StringBuilder ReferencedDomainName, ref int cchReferencedDomainName, out NativeMethods.SID_NAME_USE peUse);
