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Current Path: /opt/golang/1.22.0/src/net

📁 ..
📄 addrselect.go(9.69 KB)
📄 addrselect_test.go(8.5 KB)
📄 cgo_aix.go(582 B)
📄 cgo_android.go(272 B)
📄 cgo_bsd.go(343 B)
📄 cgo_darwin.go(298 B)
📄 cgo_linux.go(642 B)
📄 cgo_netbsd.go(276 B)
📄 cgo_openbsd.go(276 B)
📄 cgo_resnew.go(580 B)
📄 cgo_resold.go(579 B)
📄 cgo_socknew.go(753 B)
📄 cgo_sockold.go(842 B)
📄 cgo_solaris.go(343 B)
📄 cgo_stub.go(1.33 KB)
📄 cgo_unix.go(11.35 KB)
📄 cgo_unix_cgo.go(2.24 KB)
📄 cgo_unix_cgo_darwin.go(461 B)
📄 cgo_unix_cgo_res.go(911 B)
📄 cgo_unix_cgo_resn.go(998 B)
📄 cgo_unix_syscall.go(2.99 KB)
📄 cgo_unix_test.go(1.44 KB)
📄 conf.go(15.63 KB)
📄 conf_test.go(12.28 KB)
📄 conn_test.go(1.82 KB)
📄 dial.go(25.68 KB)
📄 dial_test.go(30.14 KB)
📄 dial_unix_test.go(2.77 KB)
📄 dnsclient.go(5.65 KB)
📄 dnsclient_test.go(1.51 KB)
📄 dnsclient_unix.go(24.26 KB)
📄 dnsclient_unix_test.go(69.13 KB)
📄 dnsconfig.go(1.73 KB)
📄 dnsconfig_unix.go(4.16 KB)
📄 dnsconfig_unix_test.go(7.07 KB)
📄 dnsconfig_windows.go(1.6 KB)
📄 dnsname_test.go(1.96 KB)
📄 error_plan9.go(224 B)
📄 error_plan9_test.go(437 B)
📄 error_posix.go(543 B)
📄 error_posix_test.go(981 B)
📄 error_test.go(20.32 KB)
📄 error_unix.go(382 B)
📄 error_unix_test.go(723 B)
📄 error_windows.go(355 B)
📄 error_windows_test.go(757 B)
📄 example_test.go(8.45 KB)
📄 external_test.go(4.05 KB)
📄 fd_fake.go(3.79 KB)
📄 fd_js.go(627 B)
📄 fd_plan9.go(3.56 KB)
📄 fd_posix.go(4.29 KB)
📄 fd_unix.go(5.43 KB)
📄 fd_wasip1.go(496 B)
📄 fd_windows.go(6.14 KB)
📄 file.go(1.69 KB)
📄 file_plan9.go(2.72 KB)
📄 file_stub.go(481 B)
📄 file_test.go(6.43 KB)
📄 file_unix.go(2.5 KB)
📄 file_unix_test.go(2.07 KB)
📄 file_wasip1.go(2.2 KB)
📄 file_wasip1_test.go(3.76 KB)
📄 file_windows.go(521 B)
📄 hook.go(894 B)
📄 hook_plan9.go(211 B)
📄 hook_unix.go(658 B)
📄 hook_windows.go(720 B)
📄 hosts.go(3.48 KB)
📄 hosts_test.go(5.6 KB)
📁 http
📄 interface.go(7.26 KB)
📄 interface_aix.go(4.46 KB)
📄 interface_bsd.go(2.82 KB)
📄 interface_bsd_test.go(1.44 KB)
📄 interface_bsdvar.go(718 B)
📄 interface_darwin.go(1.29 KB)
📄 interface_freebsd.go(1.29 KB)
📄 interface_linux.go(6.96 KB)
📄 interface_linux_test.go(3.65 KB)
📄 interface_plan9.go(4.71 KB)
📄 interface_solaris.go(2.13 KB)
📄 interface_stub.go(814 B)
📄 interface_test.go(9.76 KB)
📄 interface_unix_test.go(4.85 KB)
📄 interface_windows.go(5.43 KB)
📁 internal
📄 ip.go(13.88 KB)
📄 ip_test.go(25.6 KB)
📄 iprawsock.go(7.11 KB)
📄 iprawsock_plan9.go(874 B)
📄 iprawsock_posix.go(3.89 KB)
📄 iprawsock_test.go(5.98 KB)
📄 ipsock.go(9.05 KB)
📄 ipsock_plan9.go(7.48 KB)
📄 ipsock_plan9_test.go(645 B)
📄 ipsock_posix.go(7.86 KB)
📄 ipsock_test.go(6.81 KB)
📄 listen_test.go(20.5 KB)
📄 lookup.go(29.04 KB)
📄 lookup_plan9.go(9.94 KB)
📄 lookup_test.go(40.62 KB)
📄 lookup_unix.go(3.35 KB)
📄 lookup_windows.go(13.8 KB)
📄 lookup_windows_test.go(8.93 KB)
📄 mac.go(1.88 KB)
📄 mac_test.go(3.26 KB)
📁 mail
📄 main_cloexec_test.go(693 B)
📄 main_conf_test.go(1.39 KB)
📄 main_noconf_test.go(467 B)
📄 main_plan9_test.go(392 B)
📄 main_posix_test.go(1.37 KB)
📄 main_test.go(7.53 KB)
📄 main_unix_test.go(1.19 KB)
📄 main_wasm_test.go(284 B)
📄 main_windows_test.go(1 KB)
📄 mockserver_test.go(10.77 KB)
📄 mptcpsock_linux.go(3.96 KB)
📄 mptcpsock_linux_test.go(4.06 KB)
📄 mptcpsock_stub.go(542 B)
📄 net.go(24.56 KB)
📄 net_fake.go(26.36 KB)
📄 net_fake_test.go(2.79 KB)
📄 net_test.go(14 KB)
📄 net_windows_test.go(16.28 KB)
📄 netcgo_off.go(222 B)
📄 netcgo_on.go(220 B)
📄 netgo_netcgo.go(453 B)
📄 netgo_off.go(220 B)
📄 netgo_on.go(218 B)
📁 netip
📄 nss.go(5.48 KB)
📄 nss_test.go(3.4 KB)
📄 packetconn_test.go(3.02 KB)
📄 parse.go(6.04 KB)
📄 parse_test.go(1.55 KB)
📄 pipe.go(5.43 KB)
📄 pipe_test.go(1.2 KB)
📄 platform_test.go(4.33 KB)
📄 port.go(1.46 KB)
📄 port_test.go(1.34 KB)
📄 port_unix.go(1.24 KB)
📄 protoconn_test.go(7.44 KB)
📄 rawconn.go(2.7 KB)
📄 rawconn_stub_test.go(631 B)
📄 rawconn_test.go(4.33 KB)
📄 rawconn_unix_test.go(2.96 KB)
📄 rawconn_windows_test.go(3.12 KB)
📄 resolverdialfunc_test.go(8.25 KB)
📄 rlimit_js.go(346 B)
📄 rlimit_unix.go(1.1 KB)
📁 rpc
📄 sendfile_linux.go(1.12 KB)
📄 sendfile_linux_test.go(1.93 KB)
📄 sendfile_stub.go(344 B)
📄 sendfile_test.go(8.25 KB)
📄 sendfile_unix_alt.go(2.04 KB)
📄 sendfile_windows.go(1.02 KB)
📄 server_test.go(11.67 KB)
📁 smtp
📄 sock_bsd.go(918 B)
📄 sock_cloexec.go(1.38 KB)
📄 sock_linux.go(993 B)
📄 sock_linux_test.go(575 B)
📄 sock_plan9.go(262 B)
📄 sock_posix.go(6.29 KB)
📄 sock_stub.go(390 B)
📄 sock_windows.go(802 B)
📄 sockaddr_posix.go(1.45 KB)
📄 sockopt_aix.go(1.43 KB)
📄 sockopt_bsd.go(2.21 KB)
📄 sockopt_fake.go(955 B)
📄 sockopt_linux.go(1.25 KB)
📄 sockopt_plan9.go(406 B)
📄 sockopt_posix.go(2.13 KB)
📄 sockopt_solaris.go(1.25 KB)
📄 sockopt_windows.go(1.51 KB)
📄 sockoptip_bsdvar.go(867 B)
📄 sockoptip_linux.go(735 B)
📄 sockoptip_posix.go(1.38 KB)
📄 sockoptip_stub.go(769 B)
📄 sockoptip_windows.go(786 B)
📄 splice_linux.go(1.69 KB)
📄 splice_stub.go(376 B)
📄 splice_test.go(13.48 KB)
📄 sys_cloexec.go(962 B)
📄 tcpsock.go(11.75 KB)
📄 tcpsock_plan9.go(2.18 KB)
📄 tcpsock_posix.go(6.16 KB)
📄 tcpsock_test.go(17.68 KB)
📄 tcpsock_unix_test.go(2.34 KB)
📄 tcpsockopt_darwin.go(770 B)
📄 tcpsockopt_dragonfly.go(698 B)
📄 tcpsockopt_openbsd.go(365 B)
📄 tcpsockopt_plan9.go(525 B)
📄 tcpsockopt_posix.go(442 B)
📄 tcpsockopt_solaris.go(1.15 KB)
📄 tcpsockopt_stub.go(399 B)
📄 tcpsockopt_unix.go(722 B)
📄 tcpsockopt_windows.go(741 B)
📁 testdata
📁 textproto
📄 timeout_test.go(29.11 KB)
📄 udpsock.go(11.83 KB)
📄 udpsock_plan9.go(4.64 KB)
📄 udpsock_plan9_test.go(1.31 KB)
📄 udpsock_posix.go(7.53 KB)
📄 udpsock_test.go(17.24 KB)
📄 unixsock.go(10.12 KB)
📄 unixsock_linux_test.go(2.29 KB)
📄 unixsock_plan9.go(1.24 KB)
📄 unixsock_posix.go(6.64 KB)
📄 unixsock_readmsg_cloexec.go(654 B)
📄 unixsock_readmsg_cmsg_cloexec.go(332 B)
📄 unixsock_readmsg_other.go(275 B)
📄 unixsock_readmsg_test.go(2.51 KB)
📄 unixsock_test.go(10.64 KB)
📄 unixsock_windows_test.go(2.03 KB)
📁 url
📄 write_unix_test.go(1.61 KB)
📄 writev_test.go(5.03 KB)
📄 writev_unix.go(666 B)

Editing: hosts_test.go

// 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 net

import (
	"reflect"
	"strings"
	"testing"
)

type staticHostEntry struct {
	in  string
	out []string
}

var lookupStaticHostTests = []struct {
	name string
	ents []staticHostEntry
}{
	{
		"testdata/hosts",
		[]staticHostEntry{
			{"odin", []string{"127.0.0.2", "127.0.0.3", "::2"}},
			{"thor", []string{"127.1.1.1"}},
			{"ullr", []string{"127.1.1.2"}},
			{"ullrhost", []string{"127.1.1.2"}},
			{"localhost", []string{"fe80::1%lo0"}},
		},
	},
	{
		"testdata/singleline-hosts", // see golang.org/issue/6646
		[]staticHostEntry{
			{"odin", []string{"127.0.0.2"}},
		},
	},
	{
		"testdata/ipv4-hosts",
		[]staticHostEntry{
			{"localhost", []string{"127.0.0.1", "127.0.0.2", "127.0.0.3"}},
			{"localhost.localdomain", []string{"127.0.0.3"}},
		},
	},
	{
		"testdata/ipv6-hosts", // see golang.org/issue/8996
		[]staticHostEntry{
			{"localhost", []string{"::1", "fe80::1", "fe80::2%lo0", "fe80::3%lo0"}},
			{"localhost.localdomain", []string{"fe80::3%lo0"}},
		},
	},
	{
		"testdata/case-hosts", // see golang.org/issue/12806
		[]staticHostEntry{
			{"PreserveMe", []string{"127.0.0.1", "::1"}},
			{"PreserveMe.local", []string{"127.0.0.1", "::1"}},
		},
	},
}

func TestLookupStaticHost(t *testing.T) {
	defer func(orig string) { hostsFilePath = orig }(hostsFilePath)

for _, tt := range lookupStaticHostTests {
		hostsFilePath = tt.name
		for _, ent := range tt.ents {
			testStaticHost(t, tt.name, ent)
		}
	}
}

func testStaticHost(t *testing.T, hostsPath string, ent staticHostEntry) {
	ins := []string{ent.in, absDomainName(ent.in), strings.ToLower(ent.in), strings.ToUpper(ent.in)}
	for _, in := range ins {
		addrs, _ := lookupStaticHost(in)
		if !reflect.DeepEqual(addrs, ent.out) {
			t.Errorf("%s, lookupStaticHost(%s) = %v; want %v", hostsPath, in, addrs, ent.out)
		}
	}
}

var lookupStaticAddrTests = []struct {
	name string
	ents []staticHostEntry
}{
	{
		"testdata/hosts",
		[]staticHostEntry{
			{"255.255.255.255", []string{"broadcasthost"}},
			{"127.0.0.2", []string{"odin"}},
			{"127.0.0.3", []string{"odin"}},
			{"::2", []string{"odin"}},
			{"127.1.1.1", []string{"thor"}},
			{"127.1.1.2", []string{"ullr", "ullrhost"}},
			{"fe80::1%lo0", []string{"localhost"}},
		},
	},
	{
		"testdata/singleline-hosts", // see golang.org/issue/6646
		[]staticHostEntry{
			{"127.0.0.2", []string{"odin"}},
		},
	},
	{
		"testdata/ipv4-hosts",
		[]staticHostEntry{
			{"127.0.0.1", []string{"localhost"}},
			{"127.0.0.2", []string{"localhost"}},
			{"127.0.0.3", []string{"localhost", "localhost.localdomain"}},
		},
	},
	{
		"testdata/ipv6-hosts", // see golang.org/issue/8996
		[]staticHostEntry{
			{"::1", []string{"localhost"}},
			{"fe80::1", []string{"localhost"}},
			{"fe80::2%lo0", []string{"localhost"}},
			{"fe80::3%lo0", []string{"localhost", "localhost.localdomain"}},
		},
	},
	{
		"testdata/case-hosts", // see golang.org/issue/12806
		[]staticHostEntry{
			{"127.0.0.1", []string{"PreserveMe", "PreserveMe.local"}},
			{"::1", []string{"PreserveMe", "PreserveMe.local"}},
		},
	},
}

func TestLookupStaticAddr(t *testing.T) {
	defer func(orig string) { hostsFilePath = orig }(hostsFilePath)

for _, tt := range lookupStaticAddrTests {
		hostsFilePath = tt.name
		for _, ent := range tt.ents {
			testStaticAddr(t, tt.name, ent)
		}
	}
}

func testStaticAddr(t *testing.T, hostsPath string, ent staticHostEntry) {
	hosts := lookupStaticAddr(ent.in)
	for i := range ent.out {
		ent.out[i] = absDomainName(ent.out[i])
	}
	if !reflect.DeepEqual(hosts, ent.out) {
		t.Errorf("%s, lookupStaticAddr(%s) = %v; want %v", hostsPath, ent.in, hosts, ent.out)
	}
}

func TestHostCacheModification(t *testing.T) {
	// Ensure that programs can't modify the internals of the host cache.
	// See https://golang.org/issues/14212.
	defer func(orig string) { hostsFilePath = orig }(hostsFilePath)

hostsFilePath = "testdata/ipv4-hosts"
	ent := staticHostEntry{"localhost", []string{"127.0.0.1", "127.0.0.2", "127.0.0.3"}}
	testStaticHost(t, hostsFilePath, ent)
	// Modify the addresses return by lookupStaticHost.
	addrs, _ := lookupStaticHost(ent.in)
	for i := range addrs {
		addrs[i] += "junk"
	}
	testStaticHost(t, hostsFilePath, ent)

hostsFilePath = "testdata/ipv6-hosts"
	ent = staticHostEntry{"::1", []string{"localhost"}}
	testStaticAddr(t, hostsFilePath, ent)
	// Modify the hosts return by lookupStaticAddr.
	hosts := lookupStaticAddr(ent.in)
	for i := range hosts {
		hosts[i] += "junk"
	}
	testStaticAddr(t, hostsFilePath, ent)
}

var lookupStaticHostAliasesTest = []struct {
	lookup, res string
}{
	// 127.0.0.1
	{"test", "test"},
	// 127.0.0.2
	{"test2.example.com", "test2.example.com"},
	{"2.test", "test2.example.com"},
	// 127.0.0.3
	{"test3.example.com", "3.test"},
	{"3.test", "3.test"},
	// 127.0.0.4
	{"example.com", "example.com"},
	// 127.0.0.5
	{"test5.example.com", "test4.example.com"},
	{"5.test", "test4.example.com"},
	{"4.test", "test4.example.com"},
	{"test4.example.com", "test4.example.com"},
}

func TestLookupStaticHostAliases(t *testing.T) {
	defer func(orig string) { hostsFilePath = orig }(hostsFilePath)

hostsFilePath = "testdata/aliases"
	for _, ent := range lookupStaticHostAliasesTest {
		testLookupStaticHostAliases(t, ent.lookup, absDomainName(ent.res))
	}
}

func testLookupStaticHostAliases(t *testing.T, lookup, lookupRes string) {
	ins := []string{lookup, absDomainName(lookup), strings.ToLower(lookup), strings.ToUpper(lookup)}
	for _, in := range ins {
		_, res := lookupStaticHost(in)
		if res != lookupRes {
			t.Errorf("lookupStaticHost(%v): got %v, want %v", in, res, lookupRes)
		}
	}
}

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Editing: hosts_test.go

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