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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: dnsconfig_unix_test.go

// Copyright 2013 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.

//go:build unix

package net

import (
	"errors"
	"io/fs"
	"os"
	"reflect"
	"strings"
	"testing"
	"time"
)

var dnsReadConfigTests = []struct {
	name string
	want *dnsConfig
}{
	{
		name: "testdata/resolv.conf",
		want: &dnsConfig{
			servers:    []string{"8.8.8.8:53", "[2001:4860:4860::8888]:53", "[fe80::1%lo0]:53"},
			search:     []string{"localdomain."},
			ndots:      5,
			timeout:    10 * time.Second,
			attempts:   3,
			rotate:     true,
			unknownOpt: true, // the "options attempts 3" line
		},
	},
	{
		name: "testdata/domain-resolv.conf",
		want: &dnsConfig{
			servers:  []string{"8.8.8.8:53"},
			search:   []string{"localdomain."},
			ndots:    1,
			timeout:  5 * time.Second,
			attempts: 2,
		},
	},
	{
		name: "testdata/search-resolv.conf",
		want: &dnsConfig{
			servers:  []string{"8.8.8.8:53"},
			search:   []string{"test.", "invalid."},
			ndots:    1,
			timeout:  5 * time.Second,
			attempts: 2,
		},
	},
	{
		name: "testdata/search-single-dot-resolv.conf",
		want: &dnsConfig{
			servers:  []string{"8.8.8.8:53"},
			search:   []string{},
			ndots:    1,
			timeout:  5 * time.Second,
			attempts: 2,
		},
	},
	{
		name: "testdata/empty-resolv.conf",
		want: &dnsConfig{
			servers:  defaultNS,
			ndots:    1,
			timeout:  5 * time.Second,
			attempts: 2,
			search:   []string{"domain.local."},
		},
	},
	{
		name: "testdata/invalid-ndots-resolv.conf",
		want: &dnsConfig{
			servers:  defaultNS,
			ndots:    0,
			timeout:  5 * time.Second,
			attempts: 2,
			search:   []string{"domain.local."},
		},
	},
	{
		name: "testdata/large-ndots-resolv.conf",
		want: &dnsConfig{
			servers:  defaultNS,
			ndots:    15,
			timeout:  5 * time.Second,
			attempts: 2,
			search:   []string{"domain.local."},
		},
	},
	{
		name: "testdata/negative-ndots-resolv.conf",
		want: &dnsConfig{
			servers:  defaultNS,
			ndots:    0,
			timeout:  5 * time.Second,
			attempts: 2,
			search:   []string{"domain.local."},
		},
	},
	{
		name: "testdata/openbsd-resolv.conf",
		want: &dnsConfig{
			ndots:    1,
			timeout:  5 * time.Second,
			attempts: 2,
			lookup:   []string{"file", "bind"},
			servers:  []string{"169.254.169.254:53", "10.240.0.1:53"},
			search:   []string{"c.symbolic-datum-552.internal."},
		},
	},
	{
		name: "testdata/single-request-resolv.conf",
		want: &dnsConfig{
			servers:       defaultNS,
			ndots:         1,
			singleRequest: true,
			timeout:       5 * time.Second,
			attempts:      2,
			search:        []string{"domain.local."},
		},
	},
	{
		name: "testdata/single-request-reopen-resolv.conf",
		want: &dnsConfig{
			servers:       defaultNS,
			ndots:         1,
			singleRequest: true,
			timeout:       5 * time.Second,
			attempts:      2,
			search:        []string{"domain.local."},
		},
	},
	{
		name: "testdata/linux-use-vc-resolv.conf",
		want: &dnsConfig{
			servers:  defaultNS,
			ndots:    1,
			useTCP:   true,
			timeout:  5 * time.Second,
			attempts: 2,
			search:   []string{"domain.local."},
		},
	},
	{
		name: "testdata/freebsd-usevc-resolv.conf",
		want: &dnsConfig{
			servers:  defaultNS,
			ndots:    1,
			useTCP:   true,
			timeout:  5 * time.Second,
			attempts: 2,
			search:   []string{"domain.local."},
		},
	},
	{
		name: "testdata/openbsd-tcp-resolv.conf",
		want: &dnsConfig{
			servers:  defaultNS,
			ndots:    1,
			useTCP:   true,
			timeout:  5 * time.Second,
			attempts: 2,
			search:   []string{"domain.local."},
		},
	},
}

func TestDNSReadConfig(t *testing.T) {
	origGetHostname := getHostname
	defer func() { getHostname = origGetHostname }()
	getHostname = func() (string, error) { return "host.domain.local", nil }

for _, tt := range dnsReadConfigTests {
		want := *tt.want
		if len(want.search) == 0 {
			want.search = dnsDefaultSearch()
		}
		conf := dnsReadConfig(tt.name)
		if conf.err != nil {
			t.Fatal(conf.err)
		}
		conf.mtime = time.Time{}
		if !reflect.DeepEqual(conf, &want) {
			t.Errorf("%s:\ngot: %+v\nwant: %+v", tt.name, conf, want)
		}
	}
}

func TestDNSReadMissingFile(t *testing.T) {
	origGetHostname := getHostname
	defer func() { getHostname = origGetHostname }()
	getHostname = func() (string, error) { return "host.domain.local", nil }

conf := dnsReadConfig("a-nonexistent-file")
	if !os.IsNotExist(conf.err) {
		t.Errorf("missing resolv.conf:\ngot: %v\nwant: %v", conf.err, fs.ErrNotExist)
	}
	conf.err = nil
	want := &dnsConfig{
		servers:  defaultNS,
		ndots:    1,
		timeout:  5 * time.Second,
		attempts: 2,
		search:   []string{"domain.local."},
	}
	if !reflect.DeepEqual(conf, want) {
		t.Errorf("missing resolv.conf:\ngot: %+v\nwant: %+v", conf, want)
	}
}

var dnsDefaultSearchTests = []struct {
	name string
	err  error
	want []string
}{
	{
		name: "host.long.domain.local",
		want: []string{"long.domain.local."},
	},
	{
		name: "host.local",
		want: []string{"local."},
	},
	{
		name: "host",
		want: nil,
	},
	{
		name: "host.domain.local",
		err:  errors.New("errored"),
		want: nil,
	},
	{
		// ensures we don't return []string{""}
		// which causes duplicate lookups
		name: "foo.",
		want: nil,
	},
}

func TestDNSDefaultSearch(t *testing.T) {
	origGetHostname := getHostname
	defer func() { getHostname = origGetHostname }()

for _, tt := range dnsDefaultSearchTests {
		getHostname = func() (string, error) { return tt.name, tt.err }
		got := dnsDefaultSearch()
		if !reflect.DeepEqual(got, tt.want) {
			t.Errorf("dnsDefaultSearch with hostname %q and error %+v = %q, wanted %q", tt.name, tt.err, got, tt.want)
		}
	}
}

func TestDNSNameLength(t *testing.T) {
	origGetHostname := getHostname
	defer func() { getHostname = origGetHostname }()
	getHostname = func() (string, error) { return "host.domain.local", nil }

var char63 = ""
	for i := 0; i < 63; i++ {
		char63 += "a"
	}
	longDomain := strings.Repeat(char63+".", 5) + "example"

for _, tt := range dnsReadConfigTests {
		conf := dnsReadConfig(tt.name)
		if conf.err != nil {
			t.Fatal(conf.err)
		}

suffixList := tt.want.search
		if len(suffixList) == 0 {
			suffixList = dnsDefaultSearch()
		}

var shortestSuffix int
		for _, suffix := range suffixList {
			if shortestSuffix == 0 || len(suffix) < shortestSuffix {
				shortestSuffix = len(suffix)
			}
		}

// Test a name that will be maximally long when prefixing the shortest
		// suffix (accounting for the intervening dot).
		longName := longDomain[len(longDomain)-254+1+shortestSuffix:]
		if longName[0] == '.' || longName[1] == '.' {
			longName = "aa." + longName[3:]
		}
		for _, fqdn := range conf.nameList(longName) {
			if len(fqdn) > 254 {
				t.Errorf("got %d; want less than or equal to 254", len(fqdn))
			}
		}

// Now test a name that's too long for suffixing.
		unsuffixable := "a." + longName[1:]
		unsuffixableResults := conf.nameList(unsuffixable)
		if len(unsuffixableResults) != 1 {
			t.Errorf("suffixed names %v; want []", unsuffixableResults[1:])
		}

// Now test a name that's too long for DNS.
		tooLong := "a." + longDomain
		tooLongResults := conf.nameList(tooLong)
		if tooLongResults != nil {
			t.Errorf("suffixed names %v; want nil", tooLongResults)
		}
	}
}

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Editing: dnsconfig_unix_test.go

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