53 lines
1.6 KiB
Go
53 lines
1.6 KiB
Go
/*
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* Copyright (C) 2022 Brian Evans
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, version 3 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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// Package telnet provides a function that starts a telnet session in a subprocess.
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package telnet
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import (
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"fmt"
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"os"
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"os/exec"
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"tildegit.org/sloum/bombadillo/cui"
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)
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// StartSession starts a telnet session as a subprocess, connecting to the host
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// and port specified. Telnet is run interactively as a subprocess until the
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// process ends. It returns any errors from the telnet session.
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func StartSession(host string, port string) (string, error) {
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c := exec.Command("telnet", host, port)
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c.Stdin = os.Stdin
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c.Stdout = os.Stdout
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c.Stderr = os.Stderr
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// Clear the screen and position the cursor at the top left
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fmt.Print("\033[2J\033[0;0H")
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// Defer reset and reinit of the terminal to prevent any changes from
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// telnet carrying over to the client (or beyond...)
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defer func() {
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cui.Tput("reset")
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cui.InitTerm()
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}()
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err := c.Run()
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if err != nil {
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return "", fmt.Errorf("Telnet error response: %s", err.Error())
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}
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return "Telnet session terminated", nil
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}
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