File size: 8,681 Bytes
8c763fb | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 | // Copyright (c) Microsoft Corporation.
// Licensed under the MIT License.
using System;
using System.Threading;
using System.Diagnostics;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;
using System.IO;
using System.Globalization;
using System.Linq;
using Microsoft.Win32;
namespace TestExe
{
[Flags]
internal enum EnvTarget
{
User = 1,
System = 2,
}
internal sealed class TestExe
{
private static int Main(string[] args)
{
int exitCode = 0;
if (args.Length > 0)
{
switch (args[0].ToLowerInvariant())
{
case "-echoargs":
EchoArgs(args);
break;
case "-echocmdline":
EchoCmdLine();
break;
case "-createchildprocess":
CreateChildProcess(args);
break;
case "-returncode":
// Used to test functionality depending on $LASTEXITCODE, like &&/|| operators
Console.WriteLine(args[1]);
return int.Parse(args[1]);
case "-stderr":
Console.Error.WriteLine(args[1]);
break;
case "-stderrandout":
Console.WriteLine(args[1]);
Console.Error.WriteLine(new string(args[1].ToCharArray().Reverse().ToArray()));
break;
case "-readbytes":
ReadBytes();
break;
case "-writebytes":
WriteBytes(args.AsSpan()[1..]);
break;
case "-updateuserpath":
UpdateEnvPath(EnvTarget.User);
break;
case "-updatesystempath":
UpdateEnvPath(EnvTarget.System);
break;
case "-updateuserandsystempath":
UpdateEnvPath(EnvTarget.User | EnvTarget.System);
break;
case "--help":
case "-h":
PrintHelp();
break;
default:
exitCode = 1;
Console.Error.WriteLine("Unknown test {0}. Run with '-h' for help.", args[0]);
break;
}
}
else
{
exitCode = 1;
Console.Error.WriteLine("Test not specified");
}
return exitCode;
}
private static void WriteBytes(ReadOnlySpan<string> args)
{
using Stream stdout = Console.OpenStandardOutput();
foreach (string arg in args)
{
if (!byte.TryParse(arg, NumberStyles.AllowHexSpecifier, provider: null, out byte value))
{
throw new ArgumentException(
nameof(args),
"All args after -writebytes must be single byte hex strings.");
}
stdout.WriteByte(value);
}
}
[SkipLocalsInit]
private static void ReadBytes()
{
using Stream stdin = Console.OpenStandardInput();
Span<byte> buffer = stackalloc byte[0x200];
Unsafe.InitBlock(ref MemoryMarshal.GetReference(buffer), 0, 0x200);
Span<char> hex = stackalloc char[] { '\0', '\0' };
while (true)
{
int received = stdin.Read(buffer);
if (received is 0)
{
return;
}
for (int i = 0; i < received; i++)
{
buffer[i].TryFormat(hex, out _, "X2");
Console.Out.WriteLine(hex);
}
}
}
// <Summary>
// Echos back to stdout the arguments passed in
// </Summary>
private static void EchoArgs(string[] args)
{
for (int i = 1; i < args.Length; i++)
{
Console.WriteLine("Arg {0} is <{1}>", i - 1, args[i]);
}
}
// <Summary>
// Echos the raw command line received by the process plus the arguments passed in.
// </Summary>
private static void EchoCmdLine()
{
string rawCmdLine = "N/A";
if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
{
nint cmdLinePtr = Interop.GetCommandLineW();
rawCmdLine = Marshal.PtrToStringUni(cmdLinePtr);
}
Console.WriteLine(rawCmdLine);
}
// <Summary>
// Print help content.
// </Summary>
private static void PrintHelp()
{
const string Content = @"
Options for echoing args are:
-echoargs Echos back to stdout the arguments passed in.
-echocmdline Echos the raw command line received by the process.
Other options are for specific tests only. Read source code for details.
";
Console.WriteLine(Content);
}
// <Summary>
// First argument is the number of child processes to create which are instances of itself
// Processes automatically exit after 100 seconds
// </Summary>
private static void CreateChildProcess(string[] args)
{
if (args.Length > 1)
{
uint num = uint.Parse(args[1]);
for (uint i = 0; i < num; i++)
{
Process child = new Process();
child.StartInfo.FileName = Environment.ProcessPath;
child.StartInfo.Arguments = "-createchildprocess";
child.Start();
}
}
// sleep is needed so the process doesn't exit before the test case kill it
Thread.Sleep(100000);
}
private static void UpdateEnvPath(EnvTarget target)
{
if (!OperatingSystem.IsWindows())
{
return;
}
const string EnvVarName = "Path";
const string UserEnvRegPath = "Environment";
const string SysEnvRegPath = @"SYSTEM\CurrentControlSet\Control\Session Manager\Environment";
if (target.HasFlag(EnvTarget.User))
{
// Append to the User Path.
using RegistryKey reg = Registry.CurrentUser.OpenSubKey(UserEnvRegPath, writable: true);
UpdateEnvPathImpl(reg, append: true, @"X:\not-exist-user-path");
}
if (target.HasFlag(EnvTarget.System))
{
// Prepend to the System Path.
using RegistryKey reg = Registry.LocalMachine.OpenSubKey(SysEnvRegPath, writable: true);
UpdateEnvPathImpl(reg, append: false, @"X:\not-exist-sys-path");
}
static void UpdateEnvPathImpl(RegistryKey regKey, bool append, string newPathItem)
{
// Get the registry value kind.
RegistryValueKind kind = regKey.GetValueKind(EnvVarName);
// Get the literal registry value (not expanded) for the env var.
string oldValue = (string)regKey.GetValue(
EnvVarName,
defaultValue: string.Empty,
RegistryValueOptions.DoNotExpandEnvironmentNames);
string newValue;
if (append)
{
// Append to the old value.
string separator = (oldValue is "" || oldValue.EndsWith(';')) ? string.Empty : ";";
newValue = $"{oldValue}{separator}{newPathItem}";
}
else
{
// Prepend to the old value.
string separator = (oldValue is "" || oldValue.StartsWith(';')) ? string.Empty : ";";
newValue = $"{newPathItem}{separator}{oldValue}";
}
// Set the new value and preserve the original value kind.
regKey.SetValue(EnvVarName, newValue, kind);
}
}
}
internal static partial class Interop
{
[LibraryImport("Kernel32.dll")]
internal static partial nint GetCommandLineW();
}
}
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