106 lines
2.7 KiB
C#
106 lines
2.7 KiB
C#
/*
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Copyright (C) 2014-2019 de4dot@gmail.com
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This file is part of dnSpy
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dnSpy is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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dnSpy is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with dnSpy. If not, see <http://www.gnu.org/licenses/>.
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*/
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using System.IO;
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namespace dnSpy.Debugger.DotNet.CorDebug.Utilities {
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static class PortableExecutableFileHelpers {
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public static bool IsExecutable(string file) {
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if (!File.Exists(file))
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return false;
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try {
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using (var f = File.OpenRead(file)) {
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var r = new BinaryReader(f);
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if (r.ReadUInt16() != 0x5A4D)
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return false;
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f.Position = 0x3C;
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f.Position = r.ReadUInt32();
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if (r.ReadUInt32() != 0x4550)
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return false;
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f.Position += 0x12;
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var flags = r.ReadUInt16();
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return (flags & 0x2000) == 0;
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}
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}
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catch {
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}
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return false;
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}
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public static bool IsPE(string file, out bool isExe, out bool hasDotNetMetadata) {
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isExe = false;
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hasDotNetMetadata = false;
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if (!File.Exists(file))
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return false;
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try {
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using (var f = File.OpenRead(file)) {
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var r = new BinaryReader(f);
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if (r.ReadUInt16() != 0x5A4D)
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return false;
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f.Position = 0x3C;
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f.Position = r.ReadUInt32();
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if (r.ReadUInt32() != 0x4550)
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return false;
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f.Position += 0x12;
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var flags = r.ReadUInt16();
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isExe = (flags & 0x2000) == 0;
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ushort magic = r.ReadUInt16();
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if (magic == 0x10B)
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f.Position += 0xCE;
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else if (magic == 0x20B)
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f.Position += 0xDE;
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else
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return false;
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hasDotNetMetadata = r.ReadUInt32() != 0 && r.ReadUInt32() != 0;
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return true;
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}
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}
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catch {
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}
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return false;
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}
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public static bool IsGuiApp(string? file) {
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if (!File.Exists(file))
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return false;
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try {
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using (var f = File.OpenRead(file!)) {
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var r = new BinaryReader(f);
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if (r.ReadUInt16() != 0x5A4D)
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return false;
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f.Position = 0x3C;
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f.Position = r.ReadUInt32();
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if (r.ReadUInt32() != 0x4550)
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return false;
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f.Position += 0x14;
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ushort magic = r.ReadUInt16();
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if (magic != 0x010B && magic != 0x020B)
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return false;
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r.BaseStream.Position += 0x42;
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const ushort WindowsGui = 2;
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return r.ReadUInt16() == WindowsGui;
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}
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}
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catch {
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}
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return false;
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}
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}
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}
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