// 
// sub_180018D70 from 0x180018d70 to 0x180018ea2 (306 bytes)
// 
// 8 xrefs:
// > sub_180017BA0 @ 0x18001805e
// > sub_180017BA0 @ 0x180018075
// > cocos2d::extension::CCHttpResponse::setResponseData @ 0x180018ce4
// > cocos2d::extension::CCHttpResponse::setResponseHeader @ 0x180018eb4
// > cocos2d::extension::CCHttpRequest::operator= @ 0x18001d567
// > cocos2d::extension::CCHttpResponse::operator= @ 0x18001d80d
// > cocos2d::extension::CCHttpResponse::operator= @ 0x18001d81a
// > <???> @ 0x18004ab9c
// 
// This function is hookable on this platform!
// 
// Using BromaIDA 8.0.0 @ https://github.com/Stazzical/BromaIDA
// Using bindings at commit ba9f177b at Thu Jul 16 22:52:06 2026 from https://github.com/geode-sdk/bindings
// 

__int64 __fastcall sub_180018D70(__int64 a1, char **a2)
{
  char *v3; // r14
  size_t v4; // rsi
  _QWORD *v5; // rbx
  unsigned __int64 v6; // rdx
  size_t v7; // rbp
  unsigned __int64 v8; // rcx
  char *v9; // rax
  unsigned __int64 v11; // rbp
  char *v12; // rbx
  size_t v13; // rsi

  if ( (char **)a1 != a2 )
  {
    v3 = *a2;
    v4 = a2[1] - *a2;
    v5 = *(_QWORD **)a1;
    v6 = *(_QWORD *)(a1 + 16) - *(_QWORD *)a1;
    if ( v4 <= v6 )
    {
      v11 = *(_QWORD *)(a1 + 8) - (_QWORD)v5;
      if ( v4 > v11 )
      {
        memmove(*(void **)a1, v3, *(_QWORD *)(a1 + 8) - (_QWORD)v5);
        v12 = *(char **)(a1 + 8);
        v13 = v4 - v11;
        memmove(v12, &v3[v11], v13);
        v9 = &v12[v13];
        goto LABEL_14;
      }
    }
    else
    {
      v7 = 0x7FFFFFFFFFFFFFFFLL;
      if ( v4 > 0x7FFFFFFFFFFFFFFFLL )
        sub_180003530();
      v8 = v6 >> 1;
      if ( v6 <= 0x7FFFFFFFFFFFFFFFLL - (v6 >> 1) )
      {
        v7 = v8 + v6;
        if ( v8 + v6 < v4 )
          v7 = v4;
      }
      if ( v5 )
      {
        if ( v6 >= 0x1000 )
        {
          if ( (unsigned __int64)v5 - *(v5 - 1) - 8 > 0x1F )
            invalid_parameter_noinfo_noreturn();
          v5 = (_QWORD *)*(v5 - 1);
        }
        j_j_free(v5);
        *(_QWORD *)a1 = 0;
        *(_QWORD *)(a1 + 8) = 0;
        *(_QWORD *)(a1 + 16) = 0;
      }
      sub_180018CF0((_QWORD *)a1, v7);
      v5 = *(_QWORD **)a1;
    }
    memmove(v5, v3, v4);
    v9 = (char *)v5 + v4;
LABEL_14:
    *(_QWORD *)(a1 + 8) = v9;
  }
  return a1;
}