| // Copyright 2009 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 ipaddr |
| |
| import ( |
| stdnet "net" |
| "reflect" |
| "testing" |
| ) |
| |
| // Lean on the standard net lib as much as possible. |
| type IPMask = stdnet.IPMask |
| |
| var IPv4Mask = stdnet.IPv4Mask |
| |
| var parseIPTests = []struct { |
| in string |
| out IP |
| }{ |
| {"127.0.1.2", IPv4(127, 0, 1, 2)}, |
| {"127.0.0.1", IPv4(127, 0, 0, 1)}, |
| {"127.001.002.003", IPv4(127, 1, 2, 3)}, |
| {"127.007.008.009", IPv4(127, 7, 8, 9)}, |
| {"127.010.020.030", IPv4(127, 10, 20, 30)}, |
| {"::ffff:127.1.2.3", IPv4(127, 1, 2, 3)}, |
| {"::ffff:127.001.002.003", IPv4(127, 1, 2, 3)}, |
| {"::ffff:127.007.008.009", IPv4(127, 7, 8, 9)}, |
| {"::ffff:127.010.020.030", IPv4(127, 10, 20, 30)}, |
| {"::ffff:7f01:0203", IPv4(127, 1, 2, 3)}, |
| {"0:0:0:0:0000:ffff:127.1.2.3", IPv4(127, 1, 2, 3)}, |
| {"0:0:0:0:000000:ffff:127.1.2.3", IPv4(127, 1, 2, 3)}, |
| {"0:0:0:0::ffff:127.1.2.3", IPv4(127, 1, 2, 3)}, |
| |
| {"2001:4860:0:2001::68", IP{0x20, 0x01, 0x48, 0x60, 0, 0, 0x20, 0x01, 0, 0, 0, 0, 0, 0, 0x00, 0x68}}, |
| {"2001:4860:0000:2001:0000:0000:0000:0068", IP{0x20, 0x01, 0x48, 0x60, 0, 0, 0x20, 0x01, 0, 0, 0, 0, 0, 0, 0x00, 0x68}}, |
| |
| {"-0.0.0.0", nil}, |
| {"0.-1.0.0", nil}, |
| {"0.0.-2.0", nil}, |
| {"0.0.0.-3", nil}, |
| {"127.0.0.256", nil}, |
| {"abc", nil}, |
| {"123:", nil}, |
| {"fe80::1%lo0", nil}, |
| {"fe80::1%911", nil}, |
| {"", nil}, |
| {"a1:a2:a3:a4::b1:b2:b3:b4", nil}, // Issue 6628 |
| // |
| // NOTE: These correct failures were added for go-1.17, but are a |
| // backwards-incompatible change for Terraform users, who might have |
| // already written modules using leading zeroes. |
| // |
| //{"127.001.002.003", nil}, |
| //{"::ffff:127.001.002.003", nil}, |
| //{"123.000.000.000", nil}, |
| //{"1.2..4", nil}, |
| //{"0123.0.0.1", nil}, |
| } |
| |
| func TestParseIP(t *testing.T) { |
| for _, tt := range parseIPTests { |
| if out := ParseIP(tt.in); !reflect.DeepEqual(out, tt.out) { |
| t.Errorf("ParseIP(%q) = %v, want %v", tt.in, out, tt.out) |
| } |
| } |
| } |
| |
| var parseCIDRTests = []struct { |
| in string |
| ip IP |
| net *IPNet |
| err error |
| }{ |
| {"135.104.0.0/32", IPv4(135, 104, 0, 0), &IPNet{IP: IPv4(135, 104, 0, 0), Mask: IPv4Mask(255, 255, 255, 255)}, nil}, |
| {"0.0.0.0/24", IPv4(0, 0, 0, 0), &IPNet{IP: IPv4(0, 0, 0, 0), Mask: IPv4Mask(255, 255, 255, 0)}, nil}, |
| {"135.104.0.0/24", IPv4(135, 104, 0, 0), &IPNet{IP: IPv4(135, 104, 0, 0), Mask: IPv4Mask(255, 255, 255, 0)}, nil}, |
| {"135.104.0.1/32", IPv4(135, 104, 0, 1), &IPNet{IP: IPv4(135, 104, 0, 1), Mask: IPv4Mask(255, 255, 255, 255)}, nil}, |
| {"135.104.0.1/24", IPv4(135, 104, 0, 1), &IPNet{IP: IPv4(135, 104, 0, 0), Mask: IPv4Mask(255, 255, 255, 0)}, nil}, |
| {"127.000.000.001/32", IPv4(127, 0, 0, 1), &IPNet{IP: IPv4(127, 0, 0, 1), Mask: IPv4Mask(255, 255, 255, 255)}, nil}, |
| {"127.007.008.009/32", IPv4(127, 7, 8, 9), &IPNet{IP: IPv4(127, 7, 8, 9), Mask: IPv4Mask(255, 255, 255, 255)}, nil}, |
| {"127.010.020.030/32", IPv4(127, 10, 20, 30), &IPNet{IP: IPv4(127, 10, 20, 30), Mask: IPv4Mask(255, 255, 255, 255)}, nil}, |
| {"::1/128", ParseIP("::1"), &IPNet{IP: ParseIP("::1"), Mask: IPMask(ParseIP("ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff"))}, nil}, |
| {"abcd:2345::/127", ParseIP("abcd:2345::"), &IPNet{IP: ParseIP("abcd:2345::"), Mask: IPMask(ParseIP("ffff:ffff:ffff:ffff:ffff:ffff:ffff:fffe"))}, nil}, |
| {"abcd:2345::/65", ParseIP("abcd:2345::"), &IPNet{IP: ParseIP("abcd:2345::"), Mask: IPMask(ParseIP("ffff:ffff:ffff:ffff:8000::"))}, nil}, |
| {"abcd:2345::/64", ParseIP("abcd:2345::"), &IPNet{IP: ParseIP("abcd:2345::"), Mask: IPMask(ParseIP("ffff:ffff:ffff:ffff::"))}, nil}, |
| {"abcd:2345::/63", ParseIP("abcd:2345::"), &IPNet{IP: ParseIP("abcd:2345::"), Mask: IPMask(ParseIP("ffff:ffff:ffff:fffe::"))}, nil}, |
| {"abcd:2345::/33", ParseIP("abcd:2345::"), &IPNet{IP: ParseIP("abcd:2345::"), Mask: IPMask(ParseIP("ffff:ffff:8000::"))}, nil}, |
| {"abcd:2345::/32", ParseIP("abcd:2345::"), &IPNet{IP: ParseIP("abcd:2345::"), Mask: IPMask(ParseIP("ffff:ffff::"))}, nil}, |
| {"abcd:2344::/31", ParseIP("abcd:2344::"), &IPNet{IP: ParseIP("abcd:2344::"), Mask: IPMask(ParseIP("ffff:fffe::"))}, nil}, |
| {"abcd:2300::/24", ParseIP("abcd:2300::"), &IPNet{IP: ParseIP("abcd:2300::"), Mask: IPMask(ParseIP("ffff:ff00::"))}, nil}, |
| {"abcd:2345::/24", ParseIP("abcd:2345::"), &IPNet{IP: ParseIP("abcd:2300::"), Mask: IPMask(ParseIP("ffff:ff00::"))}, nil}, |
| {"2001:DB8::/48", ParseIP("2001:DB8::"), &IPNet{IP: ParseIP("2001:DB8::"), Mask: IPMask(ParseIP("ffff:ffff:ffff::"))}, nil}, |
| {"2001:DB8::1/48", ParseIP("2001:DB8::1"), &IPNet{IP: ParseIP("2001:DB8::"), Mask: IPMask(ParseIP("ffff:ffff:ffff::"))}, nil}, |
| {"192.168.1.1/255.255.255.0", nil, nil, &ParseError{Type: "CIDR address", Text: "192.168.1.1/255.255.255.0"}}, |
| {"192.168.1.1/35", nil, nil, &ParseError{Type: "CIDR address", Text: "192.168.1.1/35"}}, |
| {"2001:db8::1/-1", nil, nil, &ParseError{Type: "CIDR address", Text: "2001:db8::1/-1"}}, |
| {"2001:db8::1/-0", nil, nil, &ParseError{Type: "CIDR address", Text: "2001:db8::1/-0"}}, |
| {"-0.0.0.0/32", nil, nil, &ParseError{Type: "CIDR address", Text: "-0.0.0.0/32"}}, |
| {"0.-1.0.0/32", nil, nil, &ParseError{Type: "CIDR address", Text: "0.-1.0.0/32"}}, |
| {"0.0.-2.0/32", nil, nil, &ParseError{Type: "CIDR address", Text: "0.0.-2.0/32"}}, |
| {"0.0.0.-3/32", nil, nil, &ParseError{Type: "CIDR address", Text: "0.0.0.-3/32"}}, |
| {"0.0.0.0/-0", nil, nil, &ParseError{Type: "CIDR address", Text: "0.0.0.0/-0"}}, |
| // |
| // NOTE: Theis correct failure was added for go-1.17, but is a |
| // backwards-incompatible change for Terraform users, who might have |
| // already written modules using leading zeroes. |
| // |
| //{"127.000.000.001/32", nil, nil, &ParseError{Type: "CIDR address", Text: "127.000.000.001/32"}}, |
| {"", nil, nil, &ParseError{Type: "CIDR address", Text: ""}}, |
| } |
| |
| func TestParseCIDR(t *testing.T) { |
| for _, tt := range parseCIDRTests { |
| ip, net, err := ParseCIDR(tt.in) |
| if !reflect.DeepEqual(err, tt.err) { |
| t.Errorf("ParseCIDR(%q) = %v, %v; want %v, %v", tt.in, ip, net, tt.ip, tt.net) |
| } |
| if err == nil && (!tt.ip.Equal(ip) || !tt.net.IP.Equal(net.IP) || !reflect.DeepEqual(net.Mask, tt.net.Mask)) { |
| 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) |
| } |
| } |
| } |
