golang.org/x/net@v0.25.1-0.20240516223405-c87a5b62e243/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  //go: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 (
    14  	"syscall"
    15  )
    16  
    17  type endpoint struct {
    18  	af int
    19  	s  uintptr
    20  }
    21  
    22  func (ep *endpoint) close() error {
    23  	return syscall.Close(int(ep.s))
    24  }
    25  
    26  func newEndpoints(af int) ([]endpoint, error) {
    27  	var lastErr error
    28  	var eps []endpoint
    29  	afs := []int{syscall.AF_INET, syscall.AF_INET6}
    30  	if af != syscall.AF_UNSPEC {
    31  		afs = []int{af}
    32  	}
    33  	for _, af := range afs {
    34  		s, err := syscall.Socket(af, syscall.SOCK_DGRAM, 0)
    35  		if err != nil {
    36  			lastErr = err
    37  			continue
    38  		}
    39  		eps = append(eps, endpoint{af: af, s: uintptr(s)})
    40  	}
    41  	if len(eps) == 0 {
    42  		return nil, lastErr
    43  	}
    44  	return eps, nil
    45  }