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//go:build linux
// +build linux
package rtnetlink_test
import (
"log"
"net"
"github.com/jsimonetti/rtnetlink/v2"
"golang.org/x/sys/unix"
)
// List all IPv4 addresses configured on interface 'lo'
func Example_listAddress() {
// Gather the interface Index
iface, _ := net.InterfaceByName("lo")
// Get an ip address to add to the interface
family := uint8(unix.AF_INET)
// Dial a connection to the rtnetlink socket
conn, err := rtnetlink.Dial(nil)
if err != nil {
log.Fatal(err)
}
defer conn.Close()
// Request a list of addresses
msg, err := conn.Address.List()
if err != nil {
log.Fatal(err)
}
// Filter out the wanted messages and put them in the 'addr' slice.
var addr []rtnetlink.AddressMessage
for _, v := range msg {
add := true
if iface != nil && v.Index != uint32(iface.Index) {
add = false
}
if family != 0 && v.Family != family {
add = false
}
if add {
addr = append(addr, v)
}
}
log.Printf("%#v", addr)
}
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