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agpcheatengine
Newbie cheater
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Joined: 07 Nov 2018
Posts: 12
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 Posted: Sat Mar 23, 2024 1:25 am Post subject: [Bug] Duplicate Class IDs Issue in Mono Tool |
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I would like to report an issue regarding the use of the same class names to represent identical classes in different images within the Mono tool.
Test:
| Code: | local class= mono_findClass('Assembly-CSharp','OptionsMenu')
local class2 = mono_findClass('Assembly-UnityScript','OptionsMenu')
return class==class2
1:true
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System:
Cheat Engine:7.5
windows 10
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panraven
Grandmaster Cheater
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Joined: 01 Oct 2008
Posts: 943
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| Posted: Sat Mar 23, 2024 3:30 am Post subject: |
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function mono_findClass(namespace, classname)
The first param is namespace not assembly name, likely it return class==class2 true because both call return nil, check it.
What you need to call may be:
mono_image_findClass(image, namespace, classname)
An assemblyName (as string) has a matching image (the param is a number).
Sample code to find the image number matching an assemblyName,
| Code: |
-- return image number from assembly name, or nil
function assName2Image(assemblyName)
local ass = mono_enumAssemblies()
for i=1, #(ass or {}) do
local image = mono_getImageFromAssembly(ass[i])
local imagename = mono_image_get_name(image)
if imagename == assemblyName then
return image
end
end
end
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May check the source of monoscript @ autorun directory.
_________________
- Retarded. |
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agpcheatengine
Newbie cheater
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Joined: 07 Nov 2018
Posts: 12
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| Posted: Sat Mar 23, 2024 7:27 am Post subject: duplicate class problem |
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| panraven wrote: | function mono_findClass(namespace, classname)
The first param is namespace not assembly name, likely it return class==class2 true because both call return nil, check it.
What you need to call may be:
mono_image_findClass(imageID, namespace, classname)
An assemblyName (as string) has a matching image (the param is a number).
Sample code to find the image number matching an assemblyName,
| Code: |
-- return image number from assembly name, or nil
function assName2Image(assemblyName)
local ass = mono_enumAssemblies()
for i=1, #(ass or {}) do
local image = mono_getImageFromAssembly(ass[i])
local imagename = mono_image_get_name(image)
if imagename == assemblyName then
return image
end
end
end
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May check the source of monoscript @ autorun directory. |
| Code: |
return getAddress('Assembly-CSharp.OptionsMenu::.ctor')
1:92525824
return getAddress('Assembly-CSharp.OptionsMenu::.ctor')==getAddress('Assembly-UnityScript.OptionsMenu::.ctor')
1:true |
When I entered two different addresses in the "go to address" tool within the memory view, it went to the same address, or when I called different addresses using getAddress in the Lua engine, it still went to the same address.
In the example provided in the link(wiki.cheatengine .org/index.php?title=Mono:Lua:mono_findMethod), the namespace 'Assembly-CSharp' is used, which is why I used it as well.
The application crashes when I use the method "mono_image_findClass(imageID, namespace, classname)", so I haven't been able to test it. I have resolved my own issue with the following code. However, "duplicate class problem" still continues .
| Code: | function mono_find_classes(namespace,classname)
local ass=mono_enumAssemblies()
local classes,k={},1
if string.find(classname,':') then parent=classname:sub(1,string.find(classname,':')-1) classname=classname:sub(string.find(classname,':')+1,classname:len()) end
if ass==nil then return nil end
for i=1, #ass do
if monopipe==nil then print('mono not active...')return 0 end
local c=mono_image_enumClasses(mono_getImageFromAssembly(ass[i]))
if c then
local j
for j=1, #c do
if c[j].namespace==namespace and string.find(c[j].classname,classname) then classes[k]=c[j] k=k+1 end
end
end
end
return classes
end
function mono_findMethodAdress(namespace,classname,methodname)
if not namespace then namespace='' end
local class=mono_find_classes(namespace,classname)
local result,m,methods={},1
for i=1,#class do
methods = mono_class_enumMethods(class[i].class,false)
for l,v in ipairs(methods) do
if v.name==methodname and class[i].classname==classname then
result= mono_compile_method(v.method) m=m+1 end end
end
return result
end |
The problem was that a method existed in one case but not in the other, which is why this code worked. However, in the same method, this code will not be effective.
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panraven
Grandmaster Cheater
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Joined: 01 Oct 2008
Posts: 943
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| Posted: Sat Mar 23, 2024 1:33 pm Post subject: |
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[Updated] nvm, I mixed thing up, the title said class id, not function address.
Wait, is it an il2cpp game (there is GameAssembly.dll beside the <game>.exe)?
In il2cpp, address of some simple function that has exactly same bytes (cpu instructions) and length may be shared.
If not il2cpp, then I've no idea.
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agpcheatengine
Newbie cheater
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Joined: 07 Nov 2018
Posts: 12
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| Posted: Sun Mar 24, 2024 12:58 am Post subject: |
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| panraven wrote: | [Updated] nvm, I mixed thing up, the title said class id, not function address.
Wait, is it an il2cpp game (there is GameAssembly.dll beside the <game>.exe)?
In il2cpp, address of some simple function that has exactly same bytes (cpu instructions) and length may be shared.
If not il2cpp, then I've no idea. |
I think I found the reason for the problem. Whenever I use any word instead of <anyword> in the format "<anyword>.OptionsMenu::.ctor", it always goes to the same address. There are no error messages. It's probably not working with the image name, which is why it always shows the same address. yes its il2cpp game.
Edit: I have edited the 'monoscript.lua' file, and now it supports the image name.
| Code: | function mono_findClass(namespace, classname, imagename)
...
if fullnamerequested == false then
for i = 1, #ass do
image = mono_getImageFromAssembly(ass[i])
result = mono_image_findClass(image, namespace, classname)
if (result ~= 0) then
if (imagename ==nil or imagename == "" or imagename == mono_image_get_name(image)) then
return result
end
end
end
end
--still here:
for i = 1, #ass do
image = mono_getImageFromAssembly(ass[i])
result = mono_image_findClassSlow(image, namespace, classname)
if (result ~= 0) then
if (imagename ==nil or imagename == "" or imagename == mono_image_get_name(image)) then
return result
end
end
end
...
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| Description: |
| added image name to adress |
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Download |
| Filename: |
monoscript.lua |
| Filesize: |
147.79 KB |
| Downloaded: |
25 Time(s) |
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