diff options
| -rw-r--r-- | dhcpv4/bindtodevice_darwin.go | 16 | ||||
| -rw-r--r-- | dhcpv4/bindtodevice_linux.go | 11 | ||||
| -rw-r--r-- | dhcpv4/client.go | 2 |
3 files changed, 28 insertions, 1 deletions
diff --git a/dhcpv4/bindtodevice_darwin.go b/dhcpv4/bindtodevice_darwin.go new file mode 100644 index 0000000..e9580ce --- /dev/null +++ b/dhcpv4/bindtodevice_darwin.go @@ -0,0 +1,16 @@ +// +build darwin + +package dhcpv4 + +import ( + "net" + "syscall" +) + +func BindToInterface(fd int, ifname string) error { + iface, err := net.InterfaceByName(ifname) + if err != nil { + return err + } + return syscall.SetsockoptInt(fd, syscall.IPPROTO_IP, syscall.IP_BOUND_IF, iface.Index) +} diff --git a/dhcpv4/bindtodevice_linux.go b/dhcpv4/bindtodevice_linux.go new file mode 100644 index 0000000..957744a --- /dev/null +++ b/dhcpv4/bindtodevice_linux.go @@ -0,0 +1,11 @@ +// +build linux + +package dhcpv4 + +import ( + "syscall" +) + +func BindToInterface(fd int, ifname string) error { + return syscall.BindToDevice(fd, ifname) +} diff --git a/dhcpv4/client.go b/dhcpv4/client.go index 145a7ef..55f303d 100644 --- a/dhcpv4/client.go +++ b/dhcpv4/client.go @@ -75,7 +75,7 @@ func (c *Client) Exchange(ifname string, d *DHCPv4) ([]DHCPv4, error) { if err != nil { return conversation, err } - err = syscall.BindToDevice(fd, ifname) + err = BindToInterface(fd, ifname) if err != nil { return conversation, err } |