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[interfaces] darwin #423

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merged 4 commits into from
Aug 9, 2021
Merged

[interfaces] darwin #423

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4d07145
[interfaces] darwin
pmazzini Apr 25, 2021
c89f321
Merge branch 'master' into macos
pmazzini May 2, 2021
d7b9d8b
Merge branch 'master' into macos
pmazzini Aug 9, 2021
737e322
Merge branch 'master' into macos
pmazzini Aug 9, 2021
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5 changes: 3 additions & 2 deletions interfaces/bindtodevice_bsd.go
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Original file line number Diff line number Diff line change
@@ -1,10 +1,11 @@
// +build aix freebsd openbsd netbsd darwin
// +build aix freebsd openbsd netbsd

package interfaces

import (
"net"
"syscall"

"golang.org/x/sys/unix"
)

// BindToInterface emulates linux's SO_BINDTODEVICE option for a socket by using
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19 changes: 19 additions & 0 deletions interfaces/bindtodevice_darwin.go
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Original file line number Diff line number Diff line change
@@ -0,0 +1,19 @@
// +build darwin

package interfaces

import (
"net"

"golang.org/x/sys/unix"
)

// BindToInterface emulates linux's SO_BINDTODEVICE option for a socket by using
// IP_BOUND_IF.
func BindToInterface(fd int, ifname string) error {
iface, err := net.InterfaceByName(ifname)
if err != nil {
return err
}
return unix.SetsockoptInt(fd, unix.IPPROTO_IP, unix.IP_BOUND_IF, iface.Index)
}