private static IntPtr EnumerateSharesNT(string server, ShareCollection shares, ref int level, ref int hResume)
{
var nRet = NetShareEnum(server, level, out IntPtr pBuffer, -1, out int entriesRead, out int totalEntries, ref hResume);
if (ErrorAccessDenied == nRet)
{
level = 1;
nRet = NetShareEnum(server, level, out pBuffer, -1, out entriesRead, out totalEntries, ref hResume);
}
if (NoError == nRet && entriesRead > 0)
{
var t = 2 == level ? typeof(ShareInfo2) : typeof(ShareInfo1);
var offset = Marshal.SizeOf(t);
for (int i = 0, lpItem = pBuffer.ToInt32(); i < entriesRead; i++, lpItem += offset)
{
var pItem = new IntPtr(lpItem);
if (1 == level)
{
var si = (ShareInfo1)Marshal.PtrToStructure(pItem, t);
shares.Add(si.NetName, si.ShareType);
}
else
{
var si = (ShareInfo2)Marshal.PtrToStructure(pItem, t);
shares.Add(si.NetName, si.ShareType);
}
}
}
return(pBuffer);
}
// ReSharper disable InconsistentNaming
static void EnumerateSharesNT(string server, ShareCollection shares)
// ReSharper restore InconsistentNaming
{
int level = 2;
int hResume = 0;
IntPtr pBuffer = IntPtr.Zero;
try
{
int entriesRead;
int totalEntries;
int nRet = NetShareEnum(server, level, out pBuffer, -1,
out entriesRead, out totalEntries, ref hResume);
if (ErrorAccessDenied == nRet)
{
level = 1;
nRet = NetShareEnum(server, level, out pBuffer, -1,
out entriesRead, out totalEntries, ref hResume);
}
if (NoError == nRet && entriesRead > 0)
{
Type t = 2 == level ? typeof(ShareInfo2) : typeof(ShareInfo1);
int offset = Marshal.SizeOf(t);
for (int i = 0, lpItem = pBuffer.ToInt32(); i < entriesRead; i++, lpItem += offset)
{
IntPtr pItem = new IntPtr(lpItem);
if (1 == level)
{
ShareInfo1 si = (ShareInfo1)Marshal.PtrToStructure(pItem, t);
shares.Add(si.NetName, string.Empty, si.ShareType, si.Remark);
}
else
{
ShareInfo2 si = (ShareInfo2)Marshal.PtrToStructure(pItem, t);
shares.Add(si.NetName, si.Path, si.ShareType, si.Remark);
}
}
}
}
finally
{
if (IntPtr.Zero != pBuffer)
{
NetApiBufferFree(pBuffer);
}
}
}
static void TryEnumerateSharesNT(string server, ShareCollection shares)
{
var level = 2;
var hResume = 0;
var pBuffer = IntPtr.Zero;
try
{
pBuffer = EnumerateSharesNT(server, shares, ref level, ref hResume);
}
finally
{
if (IntPtr.Zero != pBuffer)
{
NetApiBufferFree(pBuffer);
}
}
}
protected static void EnumerateShares(string server, ShareCollection shares)
{
EnumerateSharesNT(server, shares);
}
// ReSharper disable InconsistentNaming
static void EnumerateSharesNT(string server, ShareCollection shares)
// ReSharper restore InconsistentNaming
{
int level = 2;
int hResume = 0;
IntPtr pBuffer = IntPtr.Zero;
try
{
int entriesRead;
int totalEntries;
int nRet = NetShareEnum(server, level, out pBuffer, -1,
out entriesRead, out totalEntries, ref hResume);
if(ErrorAccessDenied == nRet)
{
level = 1;
nRet = NetShareEnum(server, level, out pBuffer, -1,
out entriesRead, out totalEntries, ref hResume);
}
if(NoError == nRet && entriesRead > 0)
{
Type t = (2 == level) ? typeof(ShareInfo2) : typeof(ShareInfo1);
int offset = Marshal.SizeOf(t);
for(int i = 0, lpItem = pBuffer.ToInt32(); i < entriesRead; i++, lpItem += offset)
{
IntPtr pItem = new IntPtr(lpItem);
if(1 == level)
{
ShareInfo1 si = (ShareInfo1)Marshal.PtrToStructure(pItem, t);
shares.Add(si.NetName, string.Empty, si.ShareType, si.Remark);
}
else
{
ShareInfo2 si = (ShareInfo2)Marshal.PtrToStructure(pItem, t);
shares.Add(si.NetName, si.Path, si.ShareType, si.Remark);
}
}
}
}
finally
{
if(IntPtr.Zero != pBuffer)
{
NetApiBufferFree(pBuffer);
}
}
}
protected static void EnumerateShares(string server, ShareCollection shares) => TryEnumerateSharesNT(server, shares);