Fpgautil failed if file doesn't exists

Hi, 
Is there a gentle way to check if bitfile was successfully load if path to file is wrong? 
Looks like there are no checks in code if system() methods with commands failed.
For example, starting from [here](https://github.com/Xilinx/meta-xilinx-tools/blob/master/recipes-bsp/fpga-manager-script/files/fpgautil.c#L328).