/* DBCServer_Release_x64.exe sha256 d9e4fccdf3482e50247686d4452c0b13c75a53efc4bd7320668eece8d1ce828c
 * Ghidra 12.1.2 decompiler output for 0x14004c310 FUN_14004c310
 * Pseudocode, not original source. */

undefined8 *
FUN_14004c310(undefined8 *param_1,undefined8 *param_2,ulonglong param_3,ulonglong param_4)

{
  code *pcVar1;
  char cVar2;
  undefined8 *puVar3;
  ulonglong _Size;
  
  if (param_3 <= (ulonglong)param_2[2]) {
    _Size = param_2[2] - param_3;
    if (param_4 < _Size) {
      _Size = param_4;
    }
    if (param_1 == param_2) {
      FUN_14004c270(param_1,_Size + param_3,0xffffffffffffffff);
      FUN_14004c270(param_1,0,param_3);
    }
    else {
      cVar2 = FUN_14004c600(param_1,_Size);
      if (cVar2 != '\0') {
        if (0xf < (ulonglong)param_2[3]) {
          param_2 = (undefined8 *)*param_2;
        }
        puVar3 = param_1;
        if (0xf < (ulonglong)param_1[3]) {
          puVar3 = (undefined8 *)*param_1;
        }
        memcpy(puVar3,(void *)((longlong)param_2 + param_3),_Size);
        param_1[2] = _Size;
        puVar3 = param_1;
        if (0xf < (ulonglong)param_1[3]) {
          puVar3 = (undefined8 *)*param_1;
        }
        *(undefined1 *)((longlong)puVar3 + _Size) = 0;
      }
    }
    return param_1;
  }
  std::_Xout_of_range("invalid string position");
  pcVar1 = (code *)swi(3);
  puVar3 = (undefined8 *)(*pcVar1)();
  return puVar3;
}