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@ -32,3 +32,50 @@ You can call functions that do not reference absolute addresses. This last sente
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is not the same (nor is the PML4E index the same).
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My suggestion is you call only small functions if you want to call functions.
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# Example
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Since all of the games memory is mapped into your process you can simply walk the games PEB for loaded modules. Here is an example of how to do that.
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```cpp
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auto get_module_base(vdm::vdm_ctx* v_ctx, nasa::injector_ctx* rinjector,
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std::uint32_t pid, const wchar_t* module_name) -> std::uintptr_t
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{
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const auto ppeb =
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reinterpret_cast<PPEB>(
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rinjector->translate(
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reinterpret_cast<std::uintptr_t>(v_ctx->get_peb(pid))));
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const auto ldr_data =
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reinterpret_cast<PPEB_LDR_DATA>(
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rinjector->translate(reinterpret_cast<std::uintptr_t>(ppeb->Ldr)));
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auto current_entry =
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reinterpret_cast<LIST_ENTRY*>(
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rinjector->translate(reinterpret_cast<std::uintptr_t>(
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ldr_data->InMemoryOrderModuleList.Flink)));
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const auto list_head = &ldr_data->InMemoryOrderModuleList;
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while (current_entry != list_head)
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{
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const auto current_entry_data =
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reinterpret_cast<PLDR_DATA_TABLE_ENTRY>(
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reinterpret_cast<std::uintptr_t>(current_entry) - sizeof LIST_ENTRY);
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const auto entry_module_name =
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reinterpret_cast<const wchar_t*>(
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rinjector->translate(
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reinterpret_cast<std::uintptr_t>(
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reinterpret_cast<PUNICODE_STRING>(
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reinterpret_cast<std::uintptr_t>(
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¤t_entry_data->FullDllName) + sizeof UNICODE_STRING)->Buffer)));
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if (!_wcsicmp(entry_module_name, module_name))
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return reinterpret_cast<std::uintptr_t>(current_entry_data->DllBase);
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current_entry = reinterpret_cast<LIST_ENTRY*>(
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rinjector->translate(reinterpret_cast<std::uintptr_t>(current_entry->Flink)));
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}
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return {};
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}
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```
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