mirror of
https://github.com/HIllya51/LunaHook.git
synced 2024-10-22 23:18:16 +08:00
50 lines
2.2 KiB
C++
50 lines
2.2 KiB
C++
#include "livecaptions.h"
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bool livecaptions::attach_function()
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{
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// .text:0000000180001C98 push rbx
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// .text:0000000180001C9A sub rsp, 20h
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// .text:0000000180001C9E mov rbx, rcx
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// .text:0000000180001CA1 call memmove_0
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// .text:0000000180001CA6 mov rax, rbx
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// .text:0000000180001CA9 add rsp, 20h
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// .text:0000000180001CAD pop rbx
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// .text:0000000180001CAE retn
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HookParam hp;
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hp.address = (uintptr_t)GetProcAddress(GetModuleHandle(L"vcruntime140_app.dll"), "memmove");
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hp.text_fun = [](hook_stack *stack, HookParam *hp, uintptr_t *data, uintptr_t *split, size_t *len)
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{
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BYTE sig[] = {
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0x40, 0x53, 0x48, 0x83, 0xEC, 0x20, 0x48, 0x8B, 0xD9,
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0xE8, XX4};
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auto a1 = stack->retaddr - sizeof(sig);
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if ((stack->retaddr > (uintptr_t)GetModuleHandle(L"Microsoft.CognitiveServices.Speech.extension.embedded.sr.dll")))
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if (memcmp((void *)a1, &sig, sizeof(sig) - 4) == 0)
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{
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static std::set<uintptr_t> once;
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if (once.find(stack->retaddr) != once.end())
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return;
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once.insert(stack->retaddr);
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// hp->text_fun=nullptr;
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// hp->type=HOOK_EMPTY;
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HookParam hpinternal;
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hpinternal.address = a1; // 0xE551+(uintptr_t)GetModuleHandle(L"Microsoft.CognitiveServices.Speech.extension.embedded.sr.dll");
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hpinternal.type = USING_STRING | CODEC_UTF8 | FULL_STRING;
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hpinternal.text_fun = [](hook_stack *stack, HookParam *hp, uintptr_t *data, uintptr_t *split, size_t *len)
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{
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auto ptr = stack->rdx;
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auto size = stack->r8;
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if (size == strnlen((char *)ptr, TEXT_BUFFER_SIZE)) // 否则有短acsii
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{
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*data = ptr;
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*len = size;
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}
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};
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NewHook(hpinternal, "std::_Char_traits<char,int>::copy(void *, const void *, size_t)");
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}
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};
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return NewHook(hp, "vcruntime140_app:memmove");
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} |