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