github.com/lianghucheng/zrddz@v0.0.0-20200923083010-c71f680932e2/src/golang.org/x/net/lif/lif.go (about)

     1  // Copyright 2016 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 solaris
     6  
     7  // Package lif provides basic functions for the manipulation of
     8  // logical network interfaces and interface addresses on Solaris.
     9  //
    10  // The package supports Solaris 11 or above.
    11  package lif
    12  
    13  import "syscall"
    14  
    15  type endpoint struct {
    16  	af int
    17  	s  uintptr
    18  }
    19  
    20  func (ep *endpoint) close() error {
    21  	return syscall.Close(int(ep.s))
    22  }
    23  
    24  func newEndpoints(af int) ([]endpoint, error) {
    25  	var lastErr error
    26  	var eps []endpoint
    27  	afs := []int{sysAF_INET, sysAF_INET6}
    28  	if af != sysAF_UNSPEC {
    29  		afs = []int{af}
    30  	}
    31  	for _, af := range afs {
    32  		s, err := syscall.Socket(af, sysSOCK_DGRAM, 0)
    33  		if err != nil {
    34  			lastErr = err
    35  			continue
    36  		}
    37  		eps = append(eps, endpoint{af: af, s: uintptr(s)})
    38  	}
    39  	if len(eps) == 0 {
    40  		return nil, lastErr
    41  	}
    42  	return eps, nil
    43  }