LdrUnloadAlternateResourceModuleEx

UINT8 __stdcall LdrUnloadAlternateResourceModuleEx(PVOID Module){
  UINT8 v2; 
  int v3; 
  int v4; 
  char *v5; 
  char *v6; 
  void *v7; 
  int v8; 
  int v9; 
  UINT8 *PoolWithTag; 
  UINT8 *v11; 
  v2 = 0;
  if( !Module )
    return 0;
  LdrpInitMuiCrits((INT64)Module);
  KeWaitForSingleObject(&MuiMutex, Executive, 0, 0, 0i64);
  v3 = AlternateResourceModuleCount;
  if( (_DWORD)AlternateResourceModuleCount )
  {
    while( 1 )
    {
      if( v3 <= 0 )
        goto LABEL_21;
      v4 = v3 - 1;
      v5 = (char *)AlternateResourceModules + 64 * (__int64)(v3 - 1);
      if( *((PVOID *)v5 + 1) == Module )
        break;
LABEL_5:
      v3 = v4;
    }
    v6 = (char *)*((_QWORD *)v5 + 4);
    if( (unsigned __int64)(v6 - 1) <= 0xFFFFFFFFFFFFFFFDui64 )
    {
      MmUnmapViewInSystemSpace(v6);
      v7 = (void *)*((_QWORD *)v5 + 5);
      if( v7 )
      {
        ZwClose(v7);
        *((_QWORD *)v5 + 5) = 0i64;
      }
      *((_QWORD *)v5 + 4) = 0i64;
    }
    v8 = AlternateResourceModuleCount;
    if( v3 != (_DWORD)AlternateResourceModuleCount )
      memmove((UINT8 *)v5, (UINT8 *)v5 + 64, (unsigned __int64)(unsigned int)(AlternateResourceModuleCount - v3) << 6);
    LODWORD(AlternateResourceModuleCount) = v8 - 1;
    if( v8 == 1 )
    {
      ExFreePoolWithTag(AlternateResourceModules, 0);
      AlternateResourceModules = 0i64;
      v9 = 0;
    }
    else
    {
      if( v8 - 1 >= (unsigned int)(AltResMemBlockCount - 32) )
      {
LABEL_20:
        v2 = 1;
        goto LABEL_5;
      }
      PoolWithTag = (UINT8 *)ExAllocatePoolWithTag(
                               PagedPool,
                               (unsigned __int64)(unsigned int)(AltResMemBlockCount - 32) << 6,
                               0x69507472ui64);
      v11 = PoolWithTag;
      if( !PoolWithTag )
      {
        v2 = 0;
        goto LABEL_21;
      }
      memmove(
        PoolWithTag,
        (UINT8 *)AlternateResourceModules,
        (unsigned __int64)(unsigned int)(AltResMemBlockCount - 32) << 6);
      ExFreePoolWithTag(AlternateResourceModules, 0);
      AlternateResourceModules = v11;
      v9 = AltResMemBlockCount - 32;
    }
    AltResMemBlockCount = v9;
    goto LABEL_20;
  }
  v2 = 1;
LABEL_21:
  KeReleaseMutant(&MuiMutex, 1, 0, 0);
  return v2;
}

Referenced by: