status-go/vendor/github.com/anacrolix/missinggo/hostmaybeport.go

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2022-03-10 09:44:48 +00:00
package missinggo
import (
"net"
"strconv"
"strings"
)
// Represents a split host port.
type HostMaybePort struct {
Host string // Just the host, with no port.
Port int // The port if NoPort is false.
NoPort bool // Whether a port is specified.
Err error // The error returned from net.SplitHostPort.
}
func (me *HostMaybePort) String() string {
if me.NoPort {
return me.Host
}
return net.JoinHostPort(me.Host, strconv.FormatInt(int64(me.Port), 10))
}
// Parse a "hostport" string, a concept that floats around the stdlib a lot
// and is painful to work with. If no port is present, what's usually present
// is just the host.
func SplitHostMaybePort(hostport string) HostMaybePort {
host, portStr, err := net.SplitHostPort(hostport)
if err != nil {
if strings.Contains(err.Error(), "missing port") {
return HostMaybePort{
Host: hostport,
NoPort: true,
}
}
return HostMaybePort{
Err: err,
}
}
portI64, err := strconv.ParseInt(portStr, 0, 0)
if err != nil {
return HostMaybePort{
Host: host,
Port: -1,
Err: err,
}
}
return HostMaybePort{
Host: host,
Port: int(portI64),
}
}