Source file src/pkg/vendor/golang.org/x/net/nettest/nettest_unix.go

     1	// Copyright 2019 The Go Authors. All rights reserved.
     2	// Use of this source code is governed by a BSD-style
     3	// license that can be found in the LICENSE file.
     4	
     5	// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris
     6	
     7	package nettest
     8	
     9	import "syscall"
    10	
    11	func supportsRawSocket() bool {
    12		for _, af := range []int{syscall.AF_INET, syscall.AF_INET6} {
    13			s, err := syscall.Socket(af, syscall.SOCK_RAW, 0)
    14			if err != nil {
    15				continue
    16			}
    17			syscall.Close(s)
    18			return true
    19		}
    20		return false
    21	}
    22	

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