public static int TryGetSidsOfLocalGroupMembers(string serverName, string localGroupName, out List <SecurityIdentifier> sids)
{
if (string.IsNullOrEmpty(localGroupName))
{
throw new ArgumentNullException("localGroupName");
}
sids = new List <SecurityIdentifier>();
// Note: serverName can be (and usually is) null.
uint entriesRead;
uint totalEntries;
IntPtr resumeHandle = IntPtr.Zero;
IntPtr bufPtr = IntPtr.Zero;
try
{
int returnCode = Win32GroupInterop.NetLocalGroupGetMembers(serverName,
localGroupName,
0, // level 0. return the security identifier (SID) associated with the local group member. The bufptr parameter points to an array of LOCALGROUP_MEMBERS_INFO_0 structures
out bufPtr,
uint.MaxValue, // maximum preferred length. The method MUST allocate as much space as the data requires.
out entriesRead,
out totalEntries,
out resumeHandle);
if (returnCode != Win32GroupInterop.ReturnCode.S_OK)
{
return(returnCode);
//if (returnCode == Win32GroupInterop.ReturnCode.ERROR_ACCESS_DENIED)
//{
// //throw new UnauthorizedAccessException(AdminResources.AccessDenied());
//}
//else if (returnCode == Win32GroupInterop.ReturnCode.NERR_GroupNotFound ||
// returnCode == Win32GroupInterop.ReturnCode.ERROR_NO_SUCH_ALIAS)
//{
// //throw new ArgumentException(AdminResources.GroupNotExist(), "localGroupName");
//}
////throw new ConfigurationException(AdminResources.ErrorOperationWithReturnCode("NetLocalGroupGetMembers", returnCode.ToString(CultureInfo.CurrentCulture)));
}
for (int index = 0; index < entriesRead; ++index)
{
IntPtr ptr = new IntPtr((long)bufPtr + Marshal.SizeOf(typeof(Win32GroupInterop.LocalGroupMemberInfo0)) * index);
Win32GroupInterop.LocalGroupMemberInfo0 groupMemberInfo =
(Win32GroupInterop.LocalGroupMemberInfo0)Marshal.PtrToStructure(ptr, typeof(Win32GroupInterop.LocalGroupMemberInfo0));
SecurityIdentifier sid = new SecurityIdentifier(groupMemberInfo.Sid);
sids.Add(sid);
}
return(Win32GroupInterop.ReturnCode.S_OK);
}
finally
{
if (bufPtr != IntPtr.Zero)
{
int rc = Win32GroupInterop.NetApiBufferFree(bufPtr);
if (rc != Win32GroupInterop.ReturnCode.S_OK)
{
TraceManager.TraceError("Failed to free buffer returned by NetLocalGroupGetMembers(). Error: {0}", rc);
}
}
}
}
