369 lines
14 KiB
Go
369 lines
14 KiB
Go
// Copyright 2009 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package net
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import (
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"bytes"
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"reflect"
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"runtime"
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"testing"
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)
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func isEqual(a, b []byte) bool {
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if a == nil && b == nil {
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return true
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}
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if a == nil || b == nil {
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return false
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}
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return bytes.Equal(a, b)
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}
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var parseiptests = []struct {
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in string
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out IP
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}{
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{"127.0.1.2", IPv4(127, 0, 1, 2)},
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{"127.0.0.1", IPv4(127, 0, 0, 1)},
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{"127.0.0.256", nil},
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{"abc", nil},
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{"123:", nil},
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{"::ffff:127.0.0.1", IPv4(127, 0, 0, 1)},
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{"2001:4860:0:2001::68", IP{0x20, 0x01, 0x48, 0x60, 0, 0, 0x20, 0x01, 0, 0, 0, 0, 0, 0, 0x00, 0x68}},
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{"::ffff:4a7d:1363", IPv4(74, 125, 19, 99)},
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{"", nil},
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}
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func TestParseIP(t *testing.T) {
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for _, tt := range parseiptests {
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if out := ParseIP(tt.in); !isEqual(out, tt.out) {
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t.Errorf("ParseIP(%q) = %v, want %v", tt.in, out, tt.out)
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}
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}
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}
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var ipstringtests = []struct {
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in IP
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out string
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}{
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// cf. RFC 5952 (A Recommendation for IPv6 Address Text Representation)
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{IP{0x20, 0x1, 0xd, 0xb8, 0, 0, 0, 0, 0, 0, 0x1, 0x23, 0, 0x12, 0, 0x1}, "2001:db8::123:12:1"},
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{IP{0x20, 0x1, 0xd, 0xb8, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x1}, "2001:db8::1"},
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{IP{0x20, 0x1, 0xd, 0xb8, 0, 0, 0, 0x1, 0, 0, 0, 0x1, 0, 0, 0, 0x1}, "2001:db8:0:1:0:1:0:1"},
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{IP{0x20, 0x1, 0xd, 0xb8, 0, 0x1, 0, 0, 0, 0x1, 0, 0, 0, 0x1, 0, 0}, "2001:db8:1:0:1:0:1:0"},
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{IP{0x20, 0x1, 0, 0, 0, 0, 0, 0, 0, 0x1, 0, 0, 0, 0, 0, 0x1}, "2001::1:0:0:1"},
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{IP{0x20, 0x1, 0xd, 0xb8, 0, 0, 0, 0, 0, 0x1, 0, 0, 0, 0, 0, 0}, "2001:db8:0:0:1::"},
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{IP{0x20, 0x1, 0xd, 0xb8, 0, 0, 0, 0, 0, 0x1, 0, 0, 0, 0, 0, 0x1}, "2001:db8::1:0:0:1"},
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{IP{0x20, 0x1, 0xD, 0xB8, 0, 0, 0, 0, 0, 0xA, 0, 0xB, 0, 0xC, 0, 0xD}, "2001:db8::a:b:c:d"},
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{nil, "<nil>"},
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}
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func TestIPString(t *testing.T) {
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for _, tt := range ipstringtests {
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if out := tt.in.String(); out != tt.out {
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t.Errorf("IP.String(%v) = %q, want %q", tt.in, out, tt.out)
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}
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}
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}
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var ipmasktests = []struct {
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in IP
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mask IPMask
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out IP
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}{
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{IPv4(192, 168, 1, 127), IPv4Mask(255, 255, 255, 128), IPv4(192, 168, 1, 0)},
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{IPv4(192, 168, 1, 127), IPMask(ParseIP("255.255.255.192")), IPv4(192, 168, 1, 64)},
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{IPv4(192, 168, 1, 127), IPMask(ParseIP("ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffe0")), IPv4(192, 168, 1, 96)},
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{IPv4(192, 168, 1, 127), IPv4Mask(255, 0, 255, 0), IPv4(192, 0, 1, 0)},
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{ParseIP("2001:db8::1"), IPMask(ParseIP("ffff:ff80::")), ParseIP("2001:d80::")},
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{ParseIP("2001:db8::1"), IPMask(ParseIP("f0f0:0f0f::")), ParseIP("2000:d08::")},
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}
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func TestIPMask(t *testing.T) {
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for _, tt := range ipmasktests {
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if out := tt.in.Mask(tt.mask); out == nil || !tt.out.Equal(out) {
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t.Errorf("IP(%v).Mask(%v) = %v, want %v", tt.in, tt.mask, out, tt.out)
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}
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}
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}
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var ipmaskstringtests = []struct {
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in IPMask
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out string
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}{
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{IPv4Mask(255, 255, 255, 240), "fffffff0"},
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{IPv4Mask(255, 0, 128, 0), "ff008000"},
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{IPMask(ParseIP("ffff:ff80::")), "ffffff80000000000000000000000000"},
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{IPMask(ParseIP("ef00:ff80::cafe:0")), "ef00ff800000000000000000cafe0000"},
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{nil, "<nil>"},
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}
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func TestIPMaskString(t *testing.T) {
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for _, tt := range ipmaskstringtests {
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if out := tt.in.String(); out != tt.out {
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t.Errorf("IPMask.String(%v) = %q, want %q", tt.in, out, tt.out)
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}
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}
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}
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var parsecidrtests = []struct {
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in string
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ip IP
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net *IPNet
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err error
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}{
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{"135.104.0.0/32", IPv4(135, 104, 0, 0), &IPNet{IPv4(135, 104, 0, 0), IPv4Mask(255, 255, 255, 255)}, nil},
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{"0.0.0.0/24", IPv4(0, 0, 0, 0), &IPNet{IPv4(0, 0, 0, 0), IPv4Mask(255, 255, 255, 0)}, nil},
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{"135.104.0.0/24", IPv4(135, 104, 0, 0), &IPNet{IPv4(135, 104, 0, 0), IPv4Mask(255, 255, 255, 0)}, nil},
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{"135.104.0.1/32", IPv4(135, 104, 0, 1), &IPNet{IPv4(135, 104, 0, 1), IPv4Mask(255, 255, 255, 255)}, nil},
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{"135.104.0.1/24", IPv4(135, 104, 0, 1), &IPNet{IPv4(135, 104, 0, 0), IPv4Mask(255, 255, 255, 0)}, nil},
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{"::1/128", ParseIP("::1"), &IPNet{ParseIP("::1"), IPMask(ParseIP("ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff"))}, nil},
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{"abcd:2345::/127", ParseIP("abcd:2345::"), &IPNet{ParseIP("abcd:2345::"), IPMask(ParseIP("ffff:ffff:ffff:ffff:ffff:ffff:ffff:fffe"))}, nil},
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{"abcd:2345::/65", ParseIP("abcd:2345::"), &IPNet{ParseIP("abcd:2345::"), IPMask(ParseIP("ffff:ffff:ffff:ffff:8000::"))}, nil},
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{"abcd:2345::/64", ParseIP("abcd:2345::"), &IPNet{ParseIP("abcd:2345::"), IPMask(ParseIP("ffff:ffff:ffff:ffff::"))}, nil},
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{"abcd:2345::/63", ParseIP("abcd:2345::"), &IPNet{ParseIP("abcd:2345::"), IPMask(ParseIP("ffff:ffff:ffff:fffe::"))}, nil},
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{"abcd:2345::/33", ParseIP("abcd:2345::"), &IPNet{ParseIP("abcd:2345::"), IPMask(ParseIP("ffff:ffff:8000::"))}, nil},
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{"abcd:2345::/32", ParseIP("abcd:2345::"), &IPNet{ParseIP("abcd:2345::"), IPMask(ParseIP("ffff:ffff::"))}, nil},
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{"abcd:2344::/31", ParseIP("abcd:2344::"), &IPNet{ParseIP("abcd:2344::"), IPMask(ParseIP("ffff:fffe::"))}, nil},
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{"abcd:2300::/24", ParseIP("abcd:2300::"), &IPNet{ParseIP("abcd:2300::"), IPMask(ParseIP("ffff:ff00::"))}, nil},
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{"abcd:2345::/24", ParseIP("abcd:2345::"), &IPNet{ParseIP("abcd:2300::"), IPMask(ParseIP("ffff:ff00::"))}, nil},
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{"2001:DB8::/48", ParseIP("2001:DB8::"), &IPNet{ParseIP("2001:DB8::"), IPMask(ParseIP("ffff:ffff:ffff::"))}, nil},
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{"2001:DB8::1/48", ParseIP("2001:DB8::1"), &IPNet{ParseIP("2001:DB8::"), IPMask(ParseIP("ffff:ffff:ffff::"))}, nil},
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{"192.168.1.1/255.255.255.0", nil, nil, &ParseError{"CIDR address", "192.168.1.1/255.255.255.0"}},
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{"192.168.1.1/35", nil, nil, &ParseError{"CIDR address", "192.168.1.1/35"}},
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{"2001:db8::1/-1", nil, nil, &ParseError{"CIDR address", "2001:db8::1/-1"}},
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{"", nil, nil, &ParseError{"CIDR address", ""}},
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}
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func TestParseCIDR(t *testing.T) {
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for _, tt := range parsecidrtests {
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ip, net, err := ParseCIDR(tt.in)
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if !reflect.DeepEqual(err, tt.err) {
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t.Errorf("ParseCIDR(%q) = %v, %v; want %v, %v", tt.in, ip, net, tt.ip, tt.net)
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}
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if err == nil && (!tt.ip.Equal(ip) || !tt.net.IP.Equal(net.IP) || !isEqual(net.Mask, tt.net.Mask)) {
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t.Errorf("ParseCIDR(%q) = %v, {%v, %v}; want %v {%v, %v}", tt.in, ip, net.IP, net.Mask, tt.ip, tt.net.IP, tt.net.Mask)
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}
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}
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}
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var ipnetcontainstests = []struct {
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ip IP
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net *IPNet
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ok bool
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}{
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{IPv4(172, 16, 1, 1), &IPNet{IPv4(172, 16, 0, 0), CIDRMask(12, 32)}, true},
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{IPv4(172, 24, 0, 1), &IPNet{IPv4(172, 16, 0, 0), CIDRMask(13, 32)}, false},
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{IPv4(192, 168, 0, 3), &IPNet{IPv4(192, 168, 0, 0), IPv4Mask(0, 0, 255, 252)}, true},
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{IPv4(192, 168, 0, 4), &IPNet{IPv4(192, 168, 0, 0), IPv4Mask(0, 255, 0, 252)}, false},
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{ParseIP("2001:db8:1:2::1"), &IPNet{ParseIP("2001:db8:1::"), CIDRMask(47, 128)}, true},
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{ParseIP("2001:db8:1:2::1"), &IPNet{ParseIP("2001:db8:2::"), CIDRMask(47, 128)}, false},
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{ParseIP("2001:db8:1:2::1"), &IPNet{ParseIP("2001:db8:1::"), IPMask(ParseIP("ffff:0:ffff::"))}, true},
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{ParseIP("2001:db8:1:2::1"), &IPNet{ParseIP("2001:db8:1::"), IPMask(ParseIP("0:0:0:ffff::"))}, false},
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}
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func TestIPNetContains(t *testing.T) {
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for _, tt := range ipnetcontainstests {
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if ok := tt.net.Contains(tt.ip); ok != tt.ok {
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t.Errorf("IPNet(%v).Contains(%v) = %v, want %v", tt.net, tt.ip, ok, tt.ok)
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}
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}
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}
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var ipnetstringtests = []struct {
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in *IPNet
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out string
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}{
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{&IPNet{IPv4(192, 168, 1, 0), CIDRMask(26, 32)}, "192.168.1.0/26"},
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{&IPNet{IPv4(192, 168, 1, 0), IPv4Mask(255, 0, 255, 0)}, "192.168.1.0/ff00ff00"},
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{&IPNet{ParseIP("2001:db8::"), CIDRMask(55, 128)}, "2001:db8::/55"},
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{&IPNet{ParseIP("2001:db8::"), IPMask(ParseIP("8000:f123:0:cafe::"))}, "2001:db8::/8000f1230000cafe0000000000000000"},
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}
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func TestIPNetString(t *testing.T) {
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for _, tt := range ipnetstringtests {
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if out := tt.in.String(); out != tt.out {
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t.Errorf("IPNet.String(%v) = %q, want %q", tt.in, out, tt.out)
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}
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}
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}
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var cidrmasktests = []struct {
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ones int
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bits int
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out IPMask
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}{
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{0, 32, IPv4Mask(0, 0, 0, 0)},
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{12, 32, IPv4Mask(255, 240, 0, 0)},
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{24, 32, IPv4Mask(255, 255, 255, 0)},
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{32, 32, IPv4Mask(255, 255, 255, 255)},
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{0, 128, IPMask{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}},
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{4, 128, IPMask{0xf0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}},
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{48, 128, IPMask{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}},
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{128, 128, IPMask{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff}},
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{33, 32, nil},
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{32, 33, nil},
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{-1, 128, nil},
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{128, -1, nil},
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}
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func TestCIDRMask(t *testing.T) {
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for _, tt := range cidrmasktests {
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if out := CIDRMask(tt.ones, tt.bits); !isEqual(out, tt.out) {
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t.Errorf("CIDRMask(%v, %v) = %v, want %v", tt.ones, tt.bits, out, tt.out)
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}
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}
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}
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var (
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v4addr = IP{192, 168, 0, 1}
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v4mappedv6addr = IP{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0xff, 0xff, 192, 168, 0, 1}
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v6addr = IP{0x20, 0x1, 0xd, 0xb8, 0, 0, 0, 0, 0, 0, 0x1, 0x23, 0, 0x12, 0, 0x1}
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v4mask = IPMask{255, 255, 255, 0}
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v4mappedv6mask = IPMask{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 255, 255, 255, 0}
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v6mask = IPMask{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0, 0, 0, 0, 0, 0, 0, 0}
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badaddr = IP{192, 168, 0}
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badmask = IPMask{255, 255, 0}
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v4maskzero = IPMask{0, 0, 0, 0}
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)
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var networknumberandmasktests = []struct {
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in IPNet
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out IPNet
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}{
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{IPNet{v4addr, v4mask}, IPNet{v4addr, v4mask}},
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{IPNet{v4addr, v4mappedv6mask}, IPNet{v4addr, v4mask}},
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{IPNet{v4mappedv6addr, v4mappedv6mask}, IPNet{v4addr, v4mask}},
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{IPNet{v4mappedv6addr, v6mask}, IPNet{v4addr, v4maskzero}},
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{IPNet{v4addr, v6mask}, IPNet{v4addr, v4maskzero}},
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{IPNet{v6addr, v6mask}, IPNet{v6addr, v6mask}},
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{IPNet{v6addr, v4mappedv6mask}, IPNet{v6addr, v4mappedv6mask}},
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{in: IPNet{v6addr, v4mask}},
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{in: IPNet{v4addr, badmask}},
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{in: IPNet{v4mappedv6addr, badmask}},
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{in: IPNet{v6addr, badmask}},
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{in: IPNet{badaddr, v4mask}},
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{in: IPNet{badaddr, v4mappedv6mask}},
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{in: IPNet{badaddr, v6mask}},
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{in: IPNet{badaddr, badmask}},
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}
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func TestNetworkNumberAndMask(t *testing.T) {
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for _, tt := range networknumberandmasktests {
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ip, m := networkNumberAndMask(&tt.in)
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out := &IPNet{ip, m}
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if !reflect.DeepEqual(&tt.out, out) {
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t.Errorf("networkNumberAndMask(%v) = %v; want %v", tt.in, out, &tt.out)
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}
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}
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}
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var splitjointests = []struct {
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Host string
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Port string
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Join string
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}{
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{"www.google.com", "80", "www.google.com:80"},
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{"127.0.0.1", "1234", "127.0.0.1:1234"},
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{"::1", "80", "[::1]:80"},
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}
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func TestSplitHostPort(t *testing.T) {
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for _, tt := range splitjointests {
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if host, port, err := SplitHostPort(tt.Join); host != tt.Host || port != tt.Port || err != nil {
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t.Errorf("SplitHostPort(%q) = %q, %q, %v; want %q, %q, nil", tt.Join, host, port, err, tt.Host, tt.Port)
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}
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}
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}
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func TestJoinHostPort(t *testing.T) {
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for _, tt := range splitjointests {
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if join := JoinHostPort(tt.Host, tt.Port); join != tt.Join {
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t.Errorf("JoinHostPort(%q, %q) = %q; want %q", tt.Host, tt.Port, join, tt.Join)
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}
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}
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}
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var ipaftests = []struct {
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in IP
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af4 bool
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af6 bool
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}{
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{IPv4bcast, true, false},
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{IPv4allsys, true, false},
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{IPv4allrouter, true, false},
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{IPv4zero, true, false},
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{IPv4(224, 0, 0, 1), true, false},
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{IPv4(127, 0, 0, 1), true, false},
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{IPv4(240, 0, 0, 1), true, false},
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{IPv6unspecified, false, true},
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{IPv6loopback, false, true},
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{IPv6interfacelocalallnodes, false, true},
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{IPv6linklocalallnodes, false, true},
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{IPv6linklocalallrouters, false, true},
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{ParseIP("ff05::a:b:c:d"), false, true},
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{ParseIP("fe80::1:2:3:4"), false, true},
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{ParseIP("2001:db8::123:12:1"), false, true},
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}
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func TestIPAddrFamily(t *testing.T) {
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for _, tt := range ipaftests {
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if af := tt.in.To4() != nil; af != tt.af4 {
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t.Errorf("verifying IPv4 address family for %q = %v, want %v", tt.in, af, tt.af4)
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}
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if af := len(tt.in) == IPv6len && tt.in.To4() == nil; af != tt.af6 {
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t.Errorf("verifying IPv6 address family for %q = %v, want %v", tt.in, af, tt.af6)
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}
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}
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}
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var ipscopetests = []struct {
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scope func(IP) bool
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in IP
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ok bool
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}{
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{IP.IsUnspecified, IPv4zero, true},
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{IP.IsUnspecified, IPv4(127, 0, 0, 1), false},
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{IP.IsUnspecified, IPv6unspecified, true},
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{IP.IsUnspecified, IPv6interfacelocalallnodes, false},
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{IP.IsLoopback, IPv4(127, 0, 0, 1), true},
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{IP.IsLoopback, IPv4(127, 255, 255, 254), true},
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{IP.IsLoopback, IPv4(128, 1, 2, 3), false},
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{IP.IsLoopback, IPv6loopback, true},
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{IP.IsLoopback, IPv6linklocalallrouters, false},
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{IP.IsMulticast, IPv4(224, 0, 0, 0), true},
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{IP.IsMulticast, IPv4(239, 0, 0, 0), true},
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{IP.IsMulticast, IPv4(240, 0, 0, 0), false},
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{IP.IsMulticast, IPv6linklocalallnodes, true},
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{IP.IsMulticast, IP{0xff, 0x05, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, true},
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{IP.IsMulticast, IP{0xfe, 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, false},
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{IP.IsLinkLocalMulticast, IPv4(224, 0, 0, 0), true},
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{IP.IsLinkLocalMulticast, IPv4(239, 0, 0, 0), false},
|
|
{IP.IsLinkLocalMulticast, IPv6linklocalallrouters, true},
|
|
{IP.IsLinkLocalMulticast, IP{0xff, 0x05, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, false},
|
|
{IP.IsLinkLocalUnicast, IPv4(169, 254, 0, 0), true},
|
|
{IP.IsLinkLocalUnicast, IPv4(169, 255, 0, 0), false},
|
|
{IP.IsLinkLocalUnicast, IP{0xfe, 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, true},
|
|
{IP.IsLinkLocalUnicast, IP{0xfe, 0xc0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, false},
|
|
{IP.IsGlobalUnicast, IPv4(240, 0, 0, 0), true},
|
|
{IP.IsGlobalUnicast, IPv4(232, 0, 0, 0), false},
|
|
{IP.IsGlobalUnicast, IPv4(169, 254, 0, 0), false},
|
|
{IP.IsGlobalUnicast, IP{0x20, 0x1, 0xd, 0xb8, 0, 0, 0, 0, 0, 0, 0x1, 0x23, 0, 0x12, 0, 0x1}, true},
|
|
{IP.IsGlobalUnicast, IP{0xfe, 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, false},
|
|
{IP.IsGlobalUnicast, IP{0xff, 0x05, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, false},
|
|
}
|
|
|
|
func name(f interface{}) string {
|
|
return runtime.FuncForPC(reflect.ValueOf(f).Pointer()).Name()
|
|
}
|
|
|
|
func TestIPAddrScope(t *testing.T) {
|
|
for _, tt := range ipscopetests {
|
|
if ok := tt.scope(tt.in); ok != tt.ok {
|
|
t.Errorf("%s(%q) = %v, want %v", name(tt.scope), tt.in, ok, tt.ok)
|
|
}
|
|
}
|
|
}
|