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// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build linux
package ipv4
import (
"unsafe"
"golang.org/x/net/bpf"
"golang.org/x/net/internal/socket"
)
func (so *sockOpt) setAttachFilter(c *socket.Conn, f []bpf.RawInstruction) error {
prog := sockFProg{
Len: uint16(len(f)),
Filter: (*sockFilter)(unsafe.Pointer(&f[0])),
}
b := (*[sizeofSockFprog]byte)(unsafe.Pointer(&prog))[:sizeofSockFprog]
return so.Set(c, b)
}
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