@ -224,6 +224,67 @@ namespace MediaBrowser.Common.Implementations.NetworkManagement
return hosts [ 0 ] ;
}
/// <summary>
/// Uses the DllImport : NetServerEnum with all its required parameters
/// (see http://msdn.microsoft.com/library/default.asp?url=/library/en-us/netmgmt/netmgmt/netserverenum.asp
/// for full details or method signature) to retrieve a list of domain SV_TYPE_WORKSTATION
/// and SV_TYPE_SERVER PC's
/// </summary>
/// <returns>Arraylist that represents all the SV_TYPE_WORKSTATION and SV_TYPE_SERVER
/// PC's in the Domain</returns>
public IEnumerable < string > GetNetworkDevices ( )
{
//local fields
const int MAX_PREFERRED_LENGTH = - 1 ;
var SV_TYPE_WORKSTATION = 1 ;
var SV_TYPE_SERVER = 2 ;
var buffer = IntPtr . Zero ;
var tmpBuffer = IntPtr . Zero ;
var entriesRead = 0 ;
var totalEntries = 0 ;
var resHandle = 0 ;
var sizeofINFO = Marshal . SizeOf ( typeof ( _SERVER_INFO_100 ) ) ;
try
{
//call the DllImport : NetServerEnum with all its required parameters
//see http://msdn.microsoft.com/library/default.asp?url=/library/en-us/netmgmt/netmgmt/netserverenum.asp
//for full details of method signature
var ret = NativeMethods . NetServerEnum ( null , 100 , ref buffer , MAX_PREFERRED_LENGTH , out entriesRead , out totalEntries , SV_TYPE_WORKSTATION | SV_TYPE_SERVER , null , out resHandle ) ;
//if the returned with a NERR_Success (C++ term), =0 for C#
if ( ret = = 0 )
{
//loop through all SV_TYPE_WORKSTATION and SV_TYPE_SERVER PC's
for ( var i = 0 ; i < totalEntries ; i + + )
{
//get pointer to, Pointer to the buffer that received the data from
//the call to NetServerEnum. Must ensure to use correct size of
//STRUCTURE to ensure correct location in memory is pointed to
tmpBuffer = new IntPtr ( ( int ) buffer + ( i * sizeofINFO ) ) ;
//Have now got a pointer to the list of SV_TYPE_WORKSTATION and
//SV_TYPE_SERVER PC's, which is unmanaged memory
//Needs to Marshal data from an unmanaged block of memory to a
//managed object, again using STRUCTURE to ensure the correct data
//is marshalled
var svrInfo = ( _SERVER_INFO_100 ) Marshal . PtrToStructure ( tmpBuffer , typeof ( _SERVER_INFO_100 ) ) ;
//add the PC names to the ArrayList
if ( ! string . IsNullOrEmpty ( svrInfo . sv100_name ) )
{
yield return svrInfo . sv100_name ;
}
}
}
}
finally
{
//The NetApiBufferFree function frees
//the memory that the NetApiBufferAllocate function allocates
NativeMethods . NetApiBufferFree ( buffer ) ;
}
}
}
}