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feat: add SafeMemory.PtrToStructure/<T>

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goat 2021-12-07 22:05:01 +01:00
parent 65d0acaf64
commit ca15a9c035
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GPG key ID: 7773BB5B43BA52E5
2 changed files with 27 additions and 10 deletions
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17
Dalamud/SafeMemory.cs
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@ -190,6 +190,21 @@ namespace Dalamud
return WriteBytes(address, encoding.GetBytes(str + "\0"));
}
public static T? PtrToStructure<T>(IntPtr addr) where T : struct => (T?)PtrToStructure(addr, typeof(T));
public static object? PtrToStructure(IntPtr addr, Type type)
{
var size = Marshal.SizeOf(type);
if (!ReadBytes(addr, size, out var buffer))
return null;
var mem = new LocalMemory(size);
mem.Write(buffer);
return mem.Read(type);
}
/// <summary>
/// Get the size of the passed type.
/// </summary>
@ -249,6 +264,8 @@ namespace Dalamud
public T Read<T>(int offset = 0) => (T)Marshal.PtrToStructure(this.hGlobal + offset, typeof(T));
public object? Read(Type type, int offset = 0) => Marshal.PtrToStructure(this.hGlobal + offset, type);
public void Write(byte[] data, int index = 0) => Marshal.Copy(data, index, this.hGlobal, this.size);
public void Write<T>(T data, int offset = 0) => Marshal.StructureToPtr(data, this.hGlobal + offset, false);

20
Dalamud/Utility/Util.cs
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@ -160,8 +160,8 @@ namespace Dalamud.Utility
return sb.ToString().TrimEnd(Environment.NewLine.ToCharArray());
}
private static ulong moduleStartAddr;
private static ulong moduleEndAddr;
private static ulong ModuleStartAddr;
private static ulong ModuleEndAddr;
private static unsafe void PrintOutValue(ulong addr, IEnumerable<string> path, Type type, object value)
{
@ -173,18 +173,18 @@ namespace Dalamud.Utility
{
var unboxedAddr = (ulong)unboxed;
ImGuiHelpers.ClickToCopyText($"{(ulong)unboxed:X}");
if (moduleStartAddr > 0 && unboxedAddr >= moduleStartAddr && unboxedAddr <= moduleEndAddr)
if (ModuleStartAddr > 0 && unboxedAddr >= ModuleStartAddr && unboxedAddr <= ModuleEndAddr)
{
ImGui.SameLine();
ImGui.PushStyleColor(ImGuiCol.Text, 0xffcbc0ff);
ImGuiHelpers.ClickToCopyText($"ffxiv_dx11.exe+{unboxedAddr - moduleStartAddr:X}");
ImGuiHelpers.ClickToCopyText($"ffxiv_dx11.exe+{unboxedAddr - ModuleStartAddr:X}");
ImGui.PopStyleColor();
}
try
{
var eType = type.GetElementType();
var ptrObj = Marshal.PtrToStructure(new IntPtr(unboxed), eType);
var ptrObj = SafeMemory.PtrToStructure(new IntPtr(unboxed), eType);
ImGui.SameLine();
PrintOutObject(ptrObj, (ulong)unboxed, new List<string>(path));
}
@ -215,24 +215,24 @@ namespace Dalamud.Utility
{
path ??= new List<string>();
if (moduleEndAddr == 0 && moduleStartAddr == 0)
if (ModuleEndAddr == 0 && ModuleStartAddr == 0)
{
try
{
var processModule = Process.GetCurrentProcess().MainModule;
if (processModule != null)
{
moduleStartAddr = (ulong)processModule.BaseAddress.ToInt64();
moduleEndAddr = moduleStartAddr + (ulong)processModule.ModuleMemorySize;
ModuleStartAddr = (ulong)processModule.BaseAddress.ToInt64();
ModuleEndAddr = ModuleStartAddr + (ulong)processModule.ModuleMemorySize;
}
else
{
moduleEndAddr = 1;
ModuleEndAddr = 1;
}
}
catch
{
moduleEndAddr = 1;
ModuleEndAddr = 1;
}
}