gitee.com/ks-custle/core-gm@v0.0.0-20230922171213-b83bdd97b62c/net/nettest/nettest_unix.go (about)

     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  //go:build aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris || zos
     6  // +build aix darwin dragonfly freebsd linux netbsd openbsd solaris zos
     7  
     8  package nettest
     9  
    10  import "syscall"
    11  
    12  func supportsRawSocket() bool {
    13  	for _, af := range []int{syscall.AF_INET, syscall.AF_INET6} {
    14  		s, err := syscall.Socket(af, syscall.SOCK_RAW, 0)
    15  		if err != nil {
    16  			continue
    17  		}
    18  		syscall.Close(s)
    19  		return true
    20  	}
    21  	return false
    22  }