zmodem2-bin 0.2.0

ZMODEM file transfer protocol
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77

// SPDX-License-Identifier: MIT OR Apache-2.0
// Copyright (c) 2017-2020 Alexey Arbuzov
// Copyright (c) 2023-2025 Jarkko Sakkinen

extern crate zmodem2;

use anyhow::{bail, Context};
use argh::FromArgs;
use indicatif::{ProgressBar, ProgressStyle};
use std::fs::{File, OpenOptions};
use std::path::Path;
use zmodem2_bin::{CombinedStdInOut, ReadWrite};

#[derive(FromArgs, Debug)]
/// Send files using the ZMODEM protocol.
struct Arguments {
    /// default is '/dev/ttyS0'. Use '-' for stdio.
    #[argh(option, short = 'p')]
    port: Option<String>,
    /// list of files to send
    #[argh(positional)]
    paths: Vec<String>,
}

fn main() -> anyhow::Result<()> {
    let args: Arguments = argh::from_env();
    if args.paths.is_empty() {
        bail!("no files");
    }
    let mut port: Box<dyn ReadWrite> = {
        let path = args.port.as_deref().unwrap_or("/dev/ttyS0");
        if path == "-" {
            Box::new(CombinedStdInOut::new())
        } else {
            let file = OpenOptions::new()
                .read(true)
                .write(true)
                .open(path)
                .with_context(|| format!("'{path}'"))?;
            Box::new(file)
        }
    };
    let mut state = zmodem2::State::new();
    for path in &args.paths {
        let mut file = File::open(path).with_context(|| format!("'{path}'"))?;
        let filename_path = Path::new(path);
        let filename = filename_path
            .file_name()
            .with_context(|| format!("'{}'", path))?;
        let filename_str = filename.to_str().context("invalid UTF-8")?;
        let size = file.metadata()?.len();
        state = zmodem2::State::new_file(filename_str, size as u32)?;
        let pb = ProgressBar::new(size);
        pb.set_style(
            ProgressStyle::default_bar()
                .template(
                    "{msg}\n{spinner} [{elapsed_precise}] [{bar:40}] {bytes}/{total_bytes} ({eta})",
                )?
                .progress_chars("=>-"),
        );
        pb.set_message(format!("Sending {}", filename_str));
        while state.stage() != zmodem2::Stage::FileEnd {
            if let Err(e) = zmodem2::send(&mut port, &mut file, &mut state) {
                pb.finish_with_message("Aborted");
                bail!("ZMODEM error: {:#}", e);
            }
            pb.set_position(state.count() as u64);
        }
        pb.finish_with_message(format!("Sent {}", filename_str));
    }
    while state.stage() != zmodem2::Stage::SessionEnd {
        if let Err(e) = zmodem2::finish(&mut port, &mut state) {
            bail!("ZMODEM error during finish: {:#}", e);
        }
    }
    Ok(())
}