rust-fatfs/examples/cat.rs
2018-12-29 20:42:49 +01:00

22 lines
596 B
Rust

extern crate fatfs;
extern crate fscommon;
use std::env;
use std::fs::File;
use std::io::{self, prelude::*};
use fatfs::{FileSystem, FsOptions};
use fscommon::BufStream;
fn main() -> io::Result<()> {
let file = File::open("resources/fat32.img")?;
let buf_rdr = BufStream::new(file);
let fs = FileSystem::new(buf_rdr, FsOptions::new())?;
let root_dir = fs.root_dir();
let mut file = root_dir.open_file(&env::args().nth(1).expect("filename expected"))?;
let mut buf = vec![];
file.read_to_end(&mut buf)?;
print!("{}", String::from_utf8_lossy(&buf));
Ok(())
}