Function read_path_content 

pub fn read_path_content(
    partition: &[u8],
    sb: &Superblock,
    path: &str,
) -> Result<Option<Vec<u8>>, UfsError>

Resolve an absolute path to its file content: read_by_path then read_file. Returns Ok(None) when the path does not resolve (like read_by_path); Ok(Some(bytes)) with the file’s di_size bytes otherwise.

Errors

Propagates UfsError from path resolution or content assembly.