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plugin.go
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plugin.go
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package main
import (
"errors"
"fmt"
"io/ioutil"
"net"
"net/rpc"
"os"
"runtime"
)
func NewServer() (net.Listener, error) {
return serverListener_unix()
}
func Listen(l net.Listener) error {
conn, err := l.Accept()
if err != nil {
return err
}
rpc.ServeConn(conn)
return nil
}
func serverListener(minPort, maxPort int64) (net.Listener, error) {
if runtime.GOOS == "windows" {
return serverListener_tcp(minPort, maxPort)
}
return serverListener_unix()
}
func serverListener_tcp(minPort, maxPort int64) (net.Listener, error) {
for port := minPort; port <= maxPort; port++ {
listener, err := net.Listen("tcp", fmt.Sprintf("127.0.0.1:%d", port))
if err == nil {
return listener, nil
}
}
return nil, errors.New("Couldn't bind plugin TCP listener")
}
func serverListener_unix() (net.Listener, error) {
tf, err := ioutil.TempFile("", "irc-plugin")
if err != nil {
return nil, err
}
path := tf.Name()
// Close the file and remove it because it has to not exist for
// the domain socket.
if err := tf.Close(); err != nil {
return nil, err
}
if err := os.Remove(path); err != nil {
return nil, err
}
return net.Listen("unix", path)
}