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120273d7f6
I noticed portlist when looking at some profiles and hadn't looked at the code much before. This is a first pass over it. It allocates a fair bit. More love remains, but this does a bit: name old time/op new time/op delta GetList-8 9.92ms ± 8% 9.64ms ±12% ~ (p=0.247 n=10+10) name old alloc/op new alloc/op delta GetList-8 931kB ± 0% 869kB ± 0% -6.70% (p=0.000 n=10+10) name old allocs/op new allocs/op delta GetList-8 4.59k ± 0% 3.69k ± 1% -19.71% (p=0.000 n=10+10) Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
87 lines
2.3 KiB
Go
87 lines
2.3 KiB
Go
// Copyright (c) 2020 Tailscale Inc & 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 portlist
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import (
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"testing"
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)
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func TestParsePort(t *testing.T) {
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type InOut struct {
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in string
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expect int
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}
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tests := []InOut{
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InOut{"1.2.3.4:5678", 5678},
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InOut{"0.0.0.0.999", 999},
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InOut{"1.2.3.4:*", 0},
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InOut{"5.5.5.5:0", 0},
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InOut{"[1::2]:5", 5},
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InOut{"[1::2].5", 5},
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InOut{"gibberish", -1},
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}
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for _, io := range tests {
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got := parsePort(io.in)
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if got != io.expect {
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t.Fatalf("input:%#v expect:%v got:%v\n", io.in, io.expect, got)
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}
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}
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}
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var netstat_output = `
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// linux
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tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN
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udp 0 0 0.0.0.0:5353 0.0.0.0:*
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udp6 0 0 :::5353 :::*
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udp6 0 0 :::5354 :::*
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// macOS
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tcp4 0 0 *.23 *.* LISTEN
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tcp6 0 0 *.24 *.* LISTEN
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udp6 0 0 *.5453 *.*
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udp4 0 0 *.5553 *.*
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// Windows 10
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Proto Local Address Foreign Address State
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TCP 0.0.0.0:32 0.0.0.0:0 LISTENING
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[sshd.exe]
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UDP 0.0.0.0:5050 *:*
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CDPSvc
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[svchost.exe]
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UDP 0.0.0.0:53 *:*
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[chrome.exe]
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UDP 10.0.1.43:9353 *:*
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[iTunes.exe]
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UDP [::]:53 *:*
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UDP [::]:53 *:*
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[funball.exe]
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`
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func TestParsePortsNetstat(t *testing.T) {
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want := List{
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Port{"tcp", 22, "", ""},
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Port{"tcp", 23, "", ""},
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Port{"tcp", 24, "", ""},
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Port{"tcp", 32, "sshd", ""},
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Port{"udp", 53, "chrome", ""},
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Port{"udp", 53, "funball", ""},
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Port{"udp", 5050, "CDPSvc", ""},
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Port{"udp", 5353, "", ""},
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Port{"udp", 5354, "", ""},
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Port{"udp", 5453, "", ""},
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Port{"udp", 5553, "", ""},
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Port{"udp", 9353, "iTunes", ""},
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}
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pl := parsePortsNetstat(netstat_output)
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for i := range pl {
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if pl[i] != want[i] {
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t.Errorf("row#%d\n got: %#v\n\nwant: %#v\n",
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i, pl[i], want[i])
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}
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}
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}
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