ssh/channel/backend/
channel_exec.rs

1use super::channel::ChannelBroker;
2use crate::error::SshResult;
3use crate::model::Data;
4use crate::{
5    constant::{ssh_connection_code, ssh_str},
6    SshError,
7};
8use std::ops::{Deref, DerefMut};
9
10pub struct ExecBroker {
11    channel: ChannelBroker,
12    command_send: bool,
13}
14
15impl ExecBroker {
16    pub(crate) fn open(channel: ChannelBroker) -> Self {
17        Self {
18            channel,
19            command_send: false,
20        }
21    }
22
23    /// Send an executable command to the server
24    ///
25    /// This method is non-block as it will not wait the result
26    ///
27    pub fn send_command(&mut self, command: &str) -> SshResult<()> {
28        if self.command_send {
29            return Err(SshError::GeneralError(
30                "An exec channle can only send one command".to_owned(),
31            ));
32        }
33
34        tracing::debug!("Send command {}", command);
35        self.command_send = true;
36        let mut data = Data::new();
37        data.put_u8(ssh_connection_code::CHANNEL_REQUEST)
38            .put_u32(self.server_channel_no)
39            .put_str(ssh_str::EXEC)
40            .put_u8(true as u8)
41            .put_str(command);
42        self.send(data)
43    }
44
45    /// Get the result of the prior command
46    ///
47    /// This method will block until the server close the channel
48    ///
49    pub fn get_result(&mut self) -> SshResult<Vec<u8>> {
50        self.recv_to_end()
51    }
52}
53
54impl Deref for ExecBroker {
55    type Target = ChannelBroker;
56    fn deref(&self) -> &Self::Target {
57        &self.channel
58    }
59}
60
61impl DerefMut for ExecBroker {
62    fn deref_mut(&mut self) -> &mut Self::Target {
63        &mut self.channel
64    }
65}
ssh/channel/backend/channel_exec.rs

ssh/channel/backend/
channel_exec.rs
