Source file src/golang.org/x/net/ipv4/helper_posix_test.go

Documentation: golang.org/x/net/ipv4

     1  // Copyright 2014 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 || windows || zos
     6  
     7  package ipv4_test
     8  
     9  import (
    10  	"errors"
    11  	"os"
    12  	"syscall"
    13  
    14  	"golang.org/x/net/ipv4"
    15  )
    16  
    17  func protocolNotSupported(err error) bool {
    18  	switch err := err.(type) {
    19  	case syscall.Errno:
    20  		switch err {
    21  		case syscall.EPROTONOSUPPORT, syscall.ENOPROTOOPT:
    22  			return true
    23  		}
    24  	case *os.SyscallError:
    25  		switch err := err.Err.(type) {
    26  		case syscall.Errno:
    27  			switch err {
    28  			case syscall.EPROTONOSUPPORT, syscall.ENOPROTOOPT:
    29  				return true
    30  			}
    31  		}
    32  	}
    33  	return errors.Is(err, ipv4.ErrNotImplemented)
    34  }
    35  

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