Created
December 26, 2021 13:06
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重定向 .NET Dll 与主程序的位置
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using namespace System.IO | |
using namespace System.Text | |
param([string]$exe_path, [string]$target_path = 'bin') | |
$ErrorActionPreference = 'Stop' | |
#$DebugPreference = 'Continue' | |
$exe_path = (Resolve-Path -Path $exe_path).Path | |
Write-Host "Origin path: `"$exe_path`"" | |
Write-Host "Target dll path: $target_path" | |
$separator = '\' | |
$max_path_length = 1024 | |
$exe_name = [Path]::GetFileName($exe_path) | |
$dll_name = [Path]::ChangeExtension($exe_name, '.dll') | |
Write-Debug "exe: $exe_name" | |
Write-Debug "dll: $dll_name" | |
function Update-Exe { | |
$old_bytes = [Encoding]::UTF8.GetBytes("$dll_name`0") | |
if ($old_bytes.Count -gt $max_path_length) { | |
throw [PathTooLongException] 'old dll path is too long' | |
} | |
$new_dll_path = "$target_path$separator$dll_name" | |
$new_bytes = [Encoding]::UTF8.GetBytes("$new_dll_path`0") | |
Write-Host "Dll path Change to `"$new_dll_path`"" | |
if ($new_bytes.Count -gt $max_path_length) { | |
throw [PathTooLongException] 'new dll path is too long' | |
} | |
$bytes = [File]::ReadAllBytes($exe_path) | |
$index = (Get-Content $exe_path -Raw -Encoding 28591).IndexOf("$dll_name`0") | |
if ($index -lt 0) { | |
throw [InvalidDataException] 'Could not find old dll path' | |
} | |
Write-Debug "Position: $index" | |
$end_postion = $index + $($new_bytes.Count) | |
$end_length = $bytes.Count - $end_postion | |
if ($end_postion -gt $bytes.Count) { | |
throw [PathTooLongException] 'new dll path is too long' | |
} | |
Write-Debug "End Position: $end_postion" | |
Write-Debug "End Length: $end_length" | |
$fs = [File]::OpenWrite($exe_path) | |
try { | |
$fs.Write($bytes, 0, $index) | |
$fs.Write($new_bytes) | |
$fs.Write($bytes, $end_postion, $end_length) | |
} | |
finally { | |
$fs.Dispose(); | |
} | |
} | |
function Move-Dll { | |
$tmpbin = 'tmpbin' | |
$dir = [Path]::GetDirectoryName($exe_path); | |
$root = [Path]::GetDirectoryName($dir); | |
Write-Debug "root path: $root" | |
Write-Debug "dir path: $dir" | |
Rename-Item $dir $tmpbin | |
New-Item -ItemType Directory $dir > $null | |
Move-Item $root\$tmpbin $dir | |
Rename-Item $dir\$tmpbin $target_path | |
Move-Item $dir\$target_path\$exe_name $dir | |
} | |
Update-Exe | |
Move-Dll |
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