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author | Christopher Speller <crspeller@gmail.com> | 2018-04-16 05:37:14 -0700 |
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committer | Joram Wilander <jwawilander@gmail.com> | 2018-04-16 08:37:14 -0400 |
commit | 6e2cb00008cbf09e556b00f87603797fcaa47e09 (patch) | |
tree | 3c0eb55ff4226a3f024aad373140d1fb860a6404 /vendor/golang.org/x/net/internal/nettest/interface.go | |
parent | bf24f51c4e1cc6286885460672f7f449e8c6f5ef (diff) | |
download | chat-6e2cb00008cbf09e556b00f87603797fcaa47e09.tar.gz chat-6e2cb00008cbf09e556b00f87603797fcaa47e09.tar.bz2 chat-6e2cb00008cbf09e556b00f87603797fcaa47e09.zip |
Depenancy upgrades and movign to dep. (#8630)
Diffstat (limited to 'vendor/golang.org/x/net/internal/nettest/interface.go')
-rw-r--r-- | vendor/golang.org/x/net/internal/nettest/interface.go | 94 |
1 files changed, 0 insertions, 94 deletions
diff --git a/vendor/golang.org/x/net/internal/nettest/interface.go b/vendor/golang.org/x/net/internal/nettest/interface.go deleted file mode 100644 index 8e6333afe..000000000 --- a/vendor/golang.org/x/net/internal/nettest/interface.go +++ /dev/null @@ -1,94 +0,0 @@ -// Copyright 2012 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package nettest - -import "net" - -// IsMulticastCapable reports whether ifi is an IP multicast-capable -// network interface. Network must be "ip", "ip4" or "ip6". -func IsMulticastCapable(network string, ifi *net.Interface) (net.IP, bool) { - switch network { - case "ip", "ip4", "ip6": - default: - return nil, false - } - if ifi == nil || ifi.Flags&net.FlagUp == 0 || ifi.Flags&net.FlagMulticast == 0 { - return nil, false - } - return hasRoutableIP(network, ifi) -} - -// RoutedInterface returns a network interface that can route IP -// traffic and satisfies flags. It returns nil when an appropriate -// network interface is not found. Network must be "ip", "ip4" or -// "ip6". -func RoutedInterface(network string, flags net.Flags) *net.Interface { - switch network { - case "ip", "ip4", "ip6": - default: - return nil - } - ift, err := net.Interfaces() - if err != nil { - return nil - } - for _, ifi := range ift { - if ifi.Flags&flags != flags { - continue - } - if _, ok := hasRoutableIP(network, &ifi); !ok { - continue - } - return &ifi - } - return nil -} - -func hasRoutableIP(network string, ifi *net.Interface) (net.IP, bool) { - ifat, err := ifi.Addrs() - if err != nil { - return nil, false - } - for _, ifa := range ifat { - switch ifa := ifa.(type) { - case *net.IPAddr: - if ip := routableIP(network, ifa.IP); ip != nil { - return ip, true - } - case *net.IPNet: - if ip := routableIP(network, ifa.IP); ip != nil { - return ip, true - } - } - } - return nil, false -} - -func routableIP(network string, ip net.IP) net.IP { - if !ip.IsLoopback() && !ip.IsLinkLocalUnicast() && !ip.IsGlobalUnicast() { - return nil - } - switch network { - case "ip4": - if ip := ip.To4(); ip != nil { - return ip - } - case "ip6": - if ip.IsLoopback() { // addressing scope of the loopback address depends on each implementation - return nil - } - if ip := ip.To16(); ip != nil && ip.To4() == nil { - return ip - } - default: - if ip := ip.To4(); ip != nil { - return ip - } - if ip := ip.To16(); ip != nil { - return ip - } - } - return nil -} |