badguardhome/internal/util/net.go
Ainar Garipov ae8de95d89 Pull request: * all: move internal Go packages to internal/
Merge in DNS/adguard-home from 2234-move-to-internal to master

Squashed commit of the following:

commit d26a288cabeac86f9483fab307677b1027c78524
Author: Eugene Burkov <e.burkov@adguard.com>
Date:   Fri Oct 30 12:44:18 2020 +0300

    * all: move internal Go packages to internal/

    Closes #2234.
2020-10-30 13:32:02 +03:00

22 lines
371 B
Go

package util
import (
"fmt"
"net"
)
// CanBindPort - checks if we can bind to this port or not
func CanBindPort(port int) (bool, error) {
addr, err := net.ResolveTCPAddr("tcp", fmt.Sprintf("127.0.0.1:%d", port))
if err != nil {
return false, err
}
l, err := net.ListenTCP("tcp", addr)
if err != nil {
return false, err
}
_ = l.Close()
return true, nil
}