尝试读取linux中的隐藏文件时出现分段错误

My program reads the content of a directory specified at command line. It reads the directory recursively i.e. if we are reading contents of directory "test" and inside it we have another directory "inside", then it will also read the content of the directory named "inside". The issue is it works fine if i do not read hidden directories i.e. directories that start with "." . But in case i read hidden directories too it says Segmentation fault.My program reads the content of a directory spe