get unc path matlab windows

%----------------------------     GET_UNC_DRIVE       --------------------------
% resolve windows drive letter to unc path
%
% usage:   unc_drive =  get_unc_drive(win_drive);
% input:   win_drive -- drive name in windows style A:...Z:
%
% output:  unc_drive
% example:
%     UNC = get_unc_drive('N:')
%
%-------------------------------------------------------------------------------
function unc_drive = get_unc_drive(win_drive)
unc_drive = '';
[dummy, drivelist] = system('wmic logicaldisk get caption, drivetype, providername');

drivelist   = textscan(drivelist    ,...
    '%s %d %s'                         ,...
    'MultipleDelimsAsOne', true     ,...
    'HeaderLines'        , 1        ,...
    'Whitespace'         , ' \t\b\n'     );

win_drivelist = drivelist{1};
drivetype     = drivelist{2};
unc_drivelist = drivelist{3};
posdrive      = strncmpi(win_drivelist, win_drive, length(win_drive));
if any(posdrive)
   if drivetype(posdrive)== 4
      unc_drive     = unc_drivelist{posdrive};
   else
      fprintf('%s is not network-drive\n', win_drive)
   end
else
   fprintf('%s drive does not exist\n', win_drive );
end