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package client
import (
"tunnel/pkg/config"
"strings"
"errors"
"time"
"net"
"io"
)
var errClosed = errors.New("server closed connection")
type Client struct {
conn net.Conn
}
func New() (*Client, error) {
conn, err := net.Dial(config.SockType, config.SockPath)
if err != nil {
return nil, err
}
return &Client{conn: conn}, nil
}
func (c *Client) Send(args []string) (string, error) {
c.conn.SetDeadline(time.Now().Add(config.IoTimeout));
defer func () {
var t time.Time
c.conn.SetDeadline(t)
}()
msg := strings.Join(args, " ")
buf := make([]byte, config.BufSize)
_, ew := c.conn.Write([]byte(msg))
if ew != nil {
return "", ew
}
nr, er := c.conn.Read(buf)
if er != nil {
if er == io.EOF {
return "", errClosed
}
return "", er
}
return string(buf[:nr]), nil
}
func (c *Client) Close() {
c.conn.Close()
}
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