ssh-rs version 0.1.5

In addition to encryption library, pure RUST implementation of SSH-2.0 client protocol

Because there is a lot of unfinished work, there may be problems if you compile the code directly from the main branch

Quick example (简单例子):

```rust fn main() { let mut session = ssh::createsession(); session.isusagelog(true); session.setuserandpassword("root", "123456"); session.connect("127.0.0.1:22").unwrap();

// exec(&mut session);
// shell(&mut session);
// t_shell(&mut session);


// let mut scp = session.open_scp().unwrap();
// file upload
// scp.upload("localPath", "remotePath").unwrap();
// file download
// scp.download("localPath", "remotePath").unwrap();

}

fn exec(session: &mut Session) { let exec: ChannelExec = session.openexec().unwrap(); let vec = exec.sendcommand("ls -all").unwrap(); println!("{}", String::from_utf8(vec).unwrap()); }

fn shell(session: &mut Session) { let mut shell = session.openshell().unwrap(); thread::sleep(time::Duration::frommillis(200)); let vec = shell.read().unwrap(); let result = String::fromutf8(vec).unwrap(); println!("{}", result); shell.write(b"ls -a\n").unwrap(); thread::sleep(time::Duration::frommillis(200)); let vec = shell.read().unwrap(); let result = String::from_utf8(vec).unwrap(); println!("{}", result); shell.close().unwrap(); }

fn tshell(session: &mut Session) { let mut shell = session.openshell().unwrap(); loop {

    sleep(Duration::from_millis(300));

    let vec = shell.read().unwrap();
    if vec.is_empty() { continue }
    stdout().write(vec.as_slice()).unwrap();
    stdout().flush().unwrap();

    let mut cm = String::new();
    stdin().read_line(&mut cm).unwrap();
    shell.write(cm.as_bytes()).unwrap();

}

}

```

Supported algorithms (支持的算法):

| algorithms | is supported | |-------------------------------|---------------| | curve25519-sha256 | √ |
| ecdh-sha2-nistp256 | √ |
| ssh-ed25519 | √ |
| rsa | √ |
| chacha20-poly1305@openssh.com | √ |

Supported authentication modes (支持的身份验证方式):

| user auth | is supported | |------------------|--------------| | publickey | × |
| password | √ |
| hostbased | × |

Supported channels (支持的连接通道)