我有一个使用服务帐户运行的 exe（C# 应用程序）并试图获取文件共享的 DSF 链接。共享存在且可访问。我有另一个类似的 exe 使用相同的服务帐户运行并且运行良好，因为我的 exe 没有收到 2662 错误。我比较了这两个 exe，它们很相似，但现有的 exe 没有收到 2662 错误。我可以检查该 exe 以检查此 2662 错误代码的内容。
Input : \\consto.com\myfolder\folder1
Output: \\BZ1GHT12NM\myfolder\folder1
int Error = NetDfsGetClientInfo(DFSPath, null, null, 3, out Buffer); 错误代码：2662 NERR_DfsNoSuchVolume 没有条目路径与输入条目路径匹配的卷。2662
#region 导入
[DllImport("Netapi32.dll", EntryPoint = "NetApiBufferFree")]
public static extern uint NetApiBufferFree(IntPtr Buffer);
[DllImport("Netapi32.dll", CharSet = CharSet.Unicode, SetLastError = true)]
public static extern int NetDfsGetInfo(
[MarshalAs(UnmanagedType.LPWStr)] string EntryPath,
[MarshalAs(UnmanagedType.LPWStr)] string ServerName,
[MarshalAs(UnmanagedType.LPWStr)] string ShareName,
int Level,
out IntPtr Buffer);
[DllImport("Netapi32.dll")]
public static extern int NetDfsGetClientInfo(
[MarshalAs(UnmanagedType.LPWStr)] string EntryPath,
[MarshalAs(UnmanagedType.LPWStr)] string ServerName,
[MarshalAs(UnmanagedType.LPWStr)] string ShareName,
int Level,
out IntPtr Buffer);
#endregion
#region Structures
public struct DFS_INFO_3
{
[MarshalAs(UnmanagedType.LPWStr)]
public string EntryPath;
[MarshalAs(UnmanagedType.LPWStr)]
public string Comment;
public UInt32 State;
public UInt32 NumberOfStorages;
public IntPtr Storages;
}
public struct DFS_STORAGE_INFO
{
public Int32 State;
[MarshalAs(UnmanagedType.LPWStr)]
public string ServerName;
[MarshalAs(UnmanagedType.LPWStr)]
public string ShareName;
}
#endregion
const int DFS_VOLUME_STATE_OK = 0x00000001;
const int DFS_VOLUME_STATE_ONLINE = 0x00000004;
const int DFS_STORAGE_STATE_ONLINE = 0x00000002;
const int DFS_STORAGE_STATE_ACTIVE = 0x00000004;
public static String GetSharePath(String DFSPath)
{
if (!String.IsNullOrEmpty(DFSPath))
{
IntPtr Buffer = IntPtr.Zero;
try
{
Console.WriteLine("User : {0}, Domain= {1}",Environment.UserName, Environment.UserDomainName);
Console.WriteLine("Path is {0}", DFSPath);
int Error = NetDfsGetClientInfo(DFSPath, null, null, 3, out Buffer);
Console.WriteLine("Error code {0}", Error);
if (Error == 0)
{
DFS_INFO_3 DFSInfo = (DFS_INFO_3)Marshal.PtrToStructure(Buffer, typeof(DFS_INFO_3));
if ((DFSInfo.State & DFS_VOLUME_STATE_OK) > 0)
{
String SubPath = DFSPath.Remove(0, 1 + DFSInfo.EntryPath.Length).TrimStart(new Char[] { '\\' });
for (int i = 0; i < DFSInfo.NumberOfStorages; i++)
{
IntPtr Storage = new IntPtr(DFSInfo.Storages.ToInt64() + i * Marshal.SizeOf(typeof(DFS_STORAGE_INFO)));
DFS_STORAGE_INFO StorageInfo = (DFS_STORAGE_INFO)Marshal.PtrToStructure(Storage, typeof(DFS_STORAGE_INFO));
if ((StorageInfo.State & DFS_STORAGE_STATE_ACTIVE) > 0)
{
if (String.IsNullOrEmpty(SubPath))
{
return String.Format(@"\\{0}\{1}", StorageInfo.ServerName, StorageInfo.ShareName);
}
else
{
return (String.Format(@"\\{0}\{1}\{2}", StorageInfo.ServerName, StorageInfo.ShareName, SubPath));
}
}
}
}
}
else if (Error == 2662)
return DFSPath;
}
finally
{
NetApiBufferFree(Buffer);
}
}
return null;
}
public static String GetShareName(String SharePath)
{
if (!String.IsNullOrEmpty(SharePath))
{
String[] Tokens = SharePath.Trim(new Char[] { '\\' }).Split(new Char[] { '\\' }, StringSplitOptions.RemoveEmptyEntries);
if (2 <= Tokens.Length)
return Tokens[1];
}
return null;
}