# encoding: ascii
# api: powershell
# title: PS FindFirstFileW
# description: Use the wide unicode versions (FindFirstFileW and FindNextFileW) to report a directory listing of all files, including those that exceed the MAX_PATH ANSI limitations
# version: 8.3
# type: script
# author: Wayne Martin
# license: CC0
# x-poshcode-id: 408
# x-archived: 2016-08-20T02:34:26
# x-published: 2008-05-23T15:01:00
#
#
param(
[string] $dirRoot = $pwd,
[string] $Spec = "*.*",
[bool] $longOnly = $false
)
# Changes:
# 23/05/2008, Wayne Martin, Added the option to only report +max_path entries, and report the short path of those directories (which makes it easier to access them)
#
#
# Description:
# Use the wide unicode versions to report a directory listing of all files, including those that exceed the MAX_PATH ANSI limitations
#
# Assumptions, this script works on the assumption that:
# There's a console to write the output from the compiled VB.Net
#
# Author:
# Wayne Martin, 15/05/2008
#
# Usage
# PowerShell . .\FindFiles.ps1 -d c:\temp -s *.*
#
# PowerShell . .\FindFiles.ps1 -d c:\temp
#
# PowerShell . .\FindFiles.ps1 -d c: -l $true
#
# References:
# http://msdn.microsoft.com/en-us/library/aa364418(VS.85).aspx
# http://blogs.msdn.com/jaredpar/archive/2008/03/14/making-pinvoke-easy.aspx
$provider = new-object Microsoft.VisualBasic.VBCodeProvider
$params = new-object System.CodeDom.Compiler.CompilerParameters
$params.GenerateInMemory = $True
$refs = "System.dll","Microsoft.VisualBasic.dll"
$params.ReferencedAssemblies.AddRange($refs)
$txtCode = @'
Imports System
Imports System.Runtime.InteropServices
Class FindFiles
Const ERROR_SUCCESS As Long = 0
Private Const MAX_PREFERRED_LENGTH As Long = -1
<System.Runtime.InteropServices.StructLayoutAttribute(System.Runtime.InteropServices.LayoutKind.Sequential, CharSet:=System.Runtime.InteropServices.CharSet.[Unicode])> _
Public Structure WIN32_FIND_DATAW
'''DWORD->unsigned int
Public dwFileAttributes As UInteger
'''FILETIME->_FILETIME
Public ftCreationTime As FILETIME
'''FILETIME->_FILETIME
Public ftLastAccessTime As FILETIME
'''FILETIME->_FILETIME
Public ftLastWriteTime As FILETIME
'''DWORD->unsigned int
Public nFileSizeHigh As UInteger
'''DWORD->unsigned int
Public nFileSizeLow As UInteger
'''DWORD->unsigned int
Public dwReserved0 As UInteger
'''DWORD->unsigned int
Public dwReserved1 As UInteger
'''WCHAR[260]
<System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.ByValTStr, SizeConst:=260)> _
Public cFileName As String
'''WCHAR[14]
<System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.ByValTStr, SizeConst:=14)> _
Public cAlternateFileName As String
End Structure
<System.Runtime.InteropServices.StructLayoutAttribute(System.Runtime.InteropServices.LayoutKind.Sequential)> _
Public Structure FILETIME
'''DWORD->unsigned int
Public dwLowDateTime As UInteger
'''DWORD->unsigned int
Public dwHighDateTime As UInteger
End Structure
Partial Public Class NativeMethods
'''Return Type: HANDLE->void*
'''lpFileName: LPCWSTR->WCHAR*
'''lpFindFileData: LPWIN32_FIND_DATAW->_WIN32_FIND_DATAW*
<System.Runtime.InteropServices.DllImportAttribute("kernel32.dll", EntryPoint:="FindFirstFileW")> _
Public Shared Function FindFirstFileW(<System.Runtime.InteropServices.InAttribute(), System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.LPWStr)> ByVal lpFileName As String, <System.Runtime.InteropServices.OutAttribute()> ByRef lpFindFileData As WIN32_FIND_DATAW) As System.IntPtr
End Function
'''Return Type: BOOL->int
'''hFindFile: HANDLE->void*
'''lpFindFileData: LPWIN32_FIND_DATAW->_WIN32_FIND_DATAW*
<System.Runtime.InteropServices.DllImportAttribute("kernel32.dll", EntryPoint:="FindNextFileW")> _
Public Shared Function FindNextFileW(<System.Runtime.InteropServices.InAttribute()> ByVal hFindFile As System.IntPtr, <System.Runtime.InteropServices.OutAttribute()> ByRef lpFindFileData As WIN32_FIND_DATAW) As <System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.Bool)> Boolean
End Function
'''Return Type: BOOL->int
'''hFindFile: HANDLE->void*
<System.Runtime.InteropServices.DllImportAttribute("kernel32.dll", EntryPoint:="FindClose")> _
Public Shared Function FindClose(ByVal hFindFile As System.IntPtr) As <System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.Bool)> Boolean
End Function
'''Return Type: DWORD->unsigned int
'''lpszLongPath: LPCWSTR->WCHAR*
'''lpszShortPath: LPWSTR->WCHAR*
'''cchBuffer: DWORD->unsigned int
<System.Runtime.InteropServices.DllImportAttribute("kernel32.dll", EntryPoint:="GetShortPathNameW")> _
Public Shared Function GetShortPathNameW(<System.Runtime.InteropServices.InAttribute(), System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.LPWStr)> ByVal lpszLongPath As String, <System.Runtime.InteropServices.OutAttribute(), System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.LPWStr)> ByVal lpszShortPath As System.Text.StringBuilder, ByVal cchBuffer As UInteger) As UInteger
End Function
End Class
Private Const FILE_ATTRIBUTE_DIRECTORY As Long = &H10
Dim FFW as New NativeMethods
Function Main(ByVal dirRoot As String, ByVal sFileSpec As String, Byval longOnly As Boolean) As Long
Dim result As Long
result = FindFiles(dirRoot, sFileSpec, longOnly)
main = result ' Return the result
End Function
Function FindFiles(ByRef sDir As String, ByVal sFileSpec as String, Byval longOnly As Boolean) As Long
Const MAX_PATH As Integer = 260
Dim FindFileData as WIN32_FIND_DATAW
Dim hFile As Long
Dim sFullPath As String
Dim sFullFile As String
Dim length as UInteger
Dim sShortPath As New System.Text.StringBuilder()
sFullPath = "\\?\" & sDir
'console.writeline(sFullPath & "\" & sFileSpec)
hFile = FFW.FindFirstFileW(sFullPath & "\" & sFileSpec, FindFileData) ' Find the first object
if hFile > 0 Then ' Has something been found?
If (FindFileData.dwFileAttributes AND FILE_ATTRIBUTE_DIRECTORY) <> FILE_ATTRIBUTE_DIRECTORY Then ' Is this a file?
sFullFile = sFullPath & "\" & FindFileData.cFileName
If (longOnly AND sFullFile.Length >= MAX_PATH) Then
length = FFW.GetShortPathNameW(sFullPath, sShortPath, sFullPath.Length) ' GEt the 8.3 path
console.writeline(sFullFile & " " & sshortpath.ToString()) ' Yes, report the full path and filename
ElseIf (NOT longOnly)
console.writeline(sFullFile)
End If
End If
While FFW.FindNextFileW(hFile, FindFileData) ' For all the items in this directory
If (FindFileData.dwFileAttributes AND FILE_ATTRIBUTE_DIRECTORY) <> FILE_ATTRIBUTE_DIRECTORY Then ' Is this a file?
sFullFile = sFullPath & "\" & FindFileData.cFileName
If (longOnly AND sFullFile.Length >= MAX_PATH) Then
length = FFW.GetShortPathNameW(sFullPath, sShortPath, sFullPath.Length) ' GEt the 8.3 path
console.writeline(sFullFile & " " & sshortpath.ToString()) ' Yes, report the full path and filename
ElseIf (NOT longOnly)
console.writeline(sFullFile)
End If
End If
End While
FFW.FindClose(hFile) ' Close the handle
FindFileData = Nothing
End If
hFile = FFW.FindFirstFileW(sFullPath & "\" & "*.*", FindFileData) ' Repeat the process looking for sub-directories using *.*
if hFile > 0 Then
If (FindFileData.dwFileAttributes AND FILE_ATTRIBUTE_DIRECTORY) AND _
(FindFileData.cFileName <> ".") AND (FindFileData.cFileName <> "..") Then
Call FindFiles(sDir & "\" & FindFileData.cFileName, sFileSpec, longOnly) ' Recurse
End If
While FFW.FindNextFileW(hFile, FindFileData)
If (FindFileData.dwFileAttributes AND FILE_ATTRIBUTE_DIRECTORY) AND _
(FindFileData.cFileName <> ".") AND (FindFileData.cFileName <> "..") Then
Call FindFiles(sDir & "\" & FindFileData.cFileName, sFileSpec, longOnly) ' Recurse
End If
End While
FFW.FindClose(hFile) ' Close the handle
FindFileData = Nothing
End If
End Function
end class
'@
$cr = $provider.CompileAssemblyFromSource($params, $txtCode)
if ($cr.Errors.Count) {
$codeLines = $txtCode.Split("`n");
foreach ($ce in $cr.Errors)
{
write-host "Error: $($codeLines[$($ce.Line - 1)])"
write-host $ce
#$ce out-default
}
Throw "INVALID DATA: Errors encountered while compiling code"
}
$mAssembly = $cr.CompiledAssembly
$instance = $mAssembly.CreateInstance("FindFiles")
$result = $instance.main($dirRoot, $Spec, $longOnly)