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addr.go
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44 lines (41 loc) · 748 Bytes
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package missinggo
import (
"net"
"strconv"
)
// Extracts the port as an integer from an address string.
func AddrPort(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 {
panic(err)
}
i64, err := strconv.ParseInt(port, 0, 0)
if err != nil {
panic(err)
}
return int(i64)
}
}
func AddrIP(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 {
panic(err)
}
return net.ParseIP(host)
}
}