71 lines
1.3 KiB
Go
71 lines
1.3 KiB
Go
package torrent
|
|
|
|
import (
|
|
"net"
|
|
"strconv"
|
|
)
|
|
|
|
// Extracts the port as an integer from an address string.
|
|
func addrPortOrZero(addr net.Addr) int {
|
|
switch raw := addr.(type) {
|
|
case *net.UDPAddr:
|
|
return raw.Port
|
|
case *net.TCPAddr:
|
|
return raw.Port
|
|
default:
|
|
_, port, err := net.SplitHostPort(addr.String())
|
|
if err != nil {
|
|
return 0
|
|
}
|
|
i64, err := strconv.ParseInt(port, 0, 0)
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
return int(i64)
|
|
}
|
|
}
|
|
|
|
func addrIpOrNil(addr net.Addr) net.IP {
|
|
if addr == nil {
|
|
return nil
|
|
}
|
|
switch raw := addr.(type) {
|
|
case *net.UDPAddr:
|
|
return raw.IP
|
|
case *net.TCPAddr:
|
|
return raw.IP
|
|
default:
|
|
host, _, err := net.SplitHostPort(addr.String())
|
|
if err != nil {
|
|
return nil
|
|
}
|
|
return net.ParseIP(host)
|
|
}
|
|
}
|
|
|
|
type ipPortAddr struct {
|
|
IP net.IP
|
|
Port int
|
|
}
|
|
|
|
func (ipPortAddr) Network() string {
|
|
return ""
|
|
}
|
|
|
|
func (me ipPortAddr) String() string {
|
|
return net.JoinHostPort(me.IP.String(), strconv.FormatInt(int64(me.Port), 10))
|
|
}
|
|
|
|
func tryIpPortFromNetAddr(addr PeerRemoteAddr) (ipPortAddr, bool) {
|
|
ok := true
|
|
host, port, err := net.SplitHostPort(addr.String())
|
|
if err != nil {
|
|
ok = false
|
|
}
|
|
portI64, err := strconv.ParseInt(port, 10, 0)
|
|
if err != nil {
|
|
ok = false
|
|
}
|
|
return ipPortAddr{net.ParseIP(host), int(portI64)}, ok
|
|
}
|