| // Copyright 2012 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 windows_test |
| |
| import ( |
| "bufio" |
| "bytes" |
| "debug/pe" |
| "errors" |
| "fmt" |
| "io/ioutil" |
| "math/rand" |
| "os" |
| "path/filepath" |
| "runtime" |
| "strconv" |
| "strings" |
| "syscall" |
| "testing" |
| "time" |
| "unsafe" |
| |
| "golang.org/x/sys/internal/unsafeheader" |
| "golang.org/x/sys/windows" |
| ) |
| |
| func TestWin32finddata(t *testing.T) { |
| dir, err := ioutil.TempDir("", "go-build") |
| if err != nil { |
| t.Fatalf("failed to create temp directory: %v", err) |
| } |
| defer os.RemoveAll(dir) |
| |
| path := filepath.Join(dir, "long_name.and_extension") |
| f, err := os.Create(path) |
| if err != nil { |
| t.Fatalf("failed to create %v: %v", path, err) |
| } |
| f.Close() |
| |
| type X struct { |
| fd windows.Win32finddata |
| got byte |
| pad [10]byte // to protect ourselves |
| |
| } |
| var want byte = 2 // it is unlikely to have this character in the filename |
| x := X{got: want} |
| |
| pathp, _ := windows.UTF16PtrFromString(path) |
| h, err := windows.FindFirstFile(pathp, &(x.fd)) |
| if err != nil { |
| t.Fatalf("FindFirstFile failed: %v", err) |
| } |
| err = windows.FindClose(h) |
| if err != nil { |
| t.Fatalf("FindClose failed: %v", err) |
| } |
| |
| if x.got != want { |
| t.Fatalf("memory corruption: want=%d got=%d", want, x.got) |
| } |
| } |
| |
| func TestFormatMessage(t *testing.T) { |
| dll := windows.MustLoadDLL("netevent.dll") |
| |
| const TITLE_SC_MESSAGE_BOX uint32 = 0xC0001B75 |
| const flags uint32 = syscall.FORMAT_MESSAGE_FROM_HMODULE | syscall.FORMAT_MESSAGE_ARGUMENT_ARRAY | syscall.FORMAT_MESSAGE_IGNORE_INSERTS |
| buf := make([]uint16, 300) |
| _, err := windows.FormatMessage(flags, uintptr(dll.Handle), TITLE_SC_MESSAGE_BOX, 0, buf, nil) |
| if err != nil { |
| t.Fatalf("FormatMessage for handle=%x and errno=%x failed: %v", dll.Handle, TITLE_SC_MESSAGE_BOX, err) |
| } |
| } |
| |
| func abort(funcname string, err error) { |
| panic(funcname + " failed: " + err.Error()) |
| } |
| |
| func ExampleLoadLibrary() { |
| h, err := windows.LoadLibrary("kernel32.dll") |
| if err != nil { |
| abort("LoadLibrary", err) |
| } |
| defer windows.FreeLibrary(h) |
| proc, err := windows.GetProcAddress(h, "GetVersion") |
| if err != nil { |
| abort("GetProcAddress", err) |
| } |
| r, _, _ := syscall.Syscall(uintptr(proc), 0, 0, 0, 0) |
| major := byte(r) |
| minor := uint8(r >> 8) |
| build := uint16(r >> 16) |
| print("windows version ", major, ".", minor, " (Build ", build, ")\n") |
| } |
| |
| func TestTOKEN_ALL_ACCESS(t *testing.T) { |
| if windows.TOKEN_ALL_ACCESS != 0xF01FF { |
| t.Errorf("TOKEN_ALL_ACCESS = %x, want 0xF01FF", windows.TOKEN_ALL_ACCESS) |
| } |
| } |
| |
| func TestCreateWellKnownSid(t *testing.T) { |
| sid, err := windows.CreateWellKnownSid(windows.WinBuiltinAdministratorsSid) |
| if err != nil { |
| t.Fatalf("Unable to create well known sid for administrators: %v", err) |
| } |
| if got, want := sid.String(), "S-1-5-32-544"; got != want { |
| t.Fatalf("Builtin Administrators SID = %s, want %s", got, want) |
| } |
| } |
| |
| func TestPseudoTokens(t *testing.T) { |
| version, err := windows.GetVersion() |
| if err != nil { |
| t.Fatal(err) |
| } |
| if ((version&0xffff)>>8)|((version&0xff)<<8) < 0x0602 { |
| return |
| } |
| |
| realProcessToken, err := windows.OpenCurrentProcessToken() |
| if err != nil { |
| t.Fatal(err) |
| } |
| defer realProcessToken.Close() |
| realProcessUser, err := realProcessToken.GetTokenUser() |
| if err != nil { |
| t.Fatal(err) |
| } |
| |
| pseudoProcessToken := windows.GetCurrentProcessToken() |
| pseudoProcessUser, err := pseudoProcessToken.GetTokenUser() |
| if err != nil { |
| t.Fatal(err) |
| } |
| if !windows.EqualSid(realProcessUser.User.Sid, pseudoProcessUser.User.Sid) { |
| t.Fatal("The real process token does not have the same as the pseudo process token") |
| } |
| |
| runtime.LockOSThread() |
| defer runtime.UnlockOSThread() |
| |
| err = windows.RevertToSelf() |
| if err != nil { |
| t.Fatal(err) |
| } |
| |
| pseudoThreadToken := windows.GetCurrentThreadToken() |
| _, err = pseudoThreadToken.GetTokenUser() |
| if err != windows.ERROR_NO_TOKEN { |
| t.Fatal("Expected an empty thread token") |
| } |
| pseudoThreadEffectiveToken := windows.GetCurrentThreadEffectiveToken() |
| pseudoThreadEffectiveUser, err := pseudoThreadEffectiveToken.GetTokenUser() |
| if err != nil { |
| t.Fatal(nil) |
| } |
| if !windows.EqualSid(realProcessUser.User.Sid, pseudoThreadEffectiveUser.User.Sid) { |
| t.Fatal("The real process token does not have the same as the pseudo thread effective token, even though we aren't impersonating") |
| } |
| |
| err = windows.ImpersonateSelf(windows.SecurityImpersonation) |
| if err != nil { |
| t.Fatal(err) |
| } |
| defer windows.RevertToSelf() |
| pseudoThreadUser, err := pseudoThreadToken.GetTokenUser() |
| if err != nil { |
| t.Fatal(err) |
| } |
| if !windows.EqualSid(realProcessUser.User.Sid, pseudoThreadUser.User.Sid) { |
| t.Fatal("The real process token does not have the same as the pseudo thread token after impersonating self") |
| } |
| } |
| |
| func TestGUID(t *testing.T) { |
| guid, err := windows.GenerateGUID() |
| if err != nil { |
| t.Fatal(err) |
| } |
| if guid.Data1 == 0 && guid.Data2 == 0 && guid.Data3 == 0 && guid.Data4 == [8]byte{} { |
| t.Fatal("Got an all zero GUID, which is overwhelmingly unlikely") |
| } |
| want := fmt.Sprintf("{%08X-%04X-%04X-%04X-%012X}", guid.Data1, guid.Data2, guid.Data3, guid.Data4[:2], guid.Data4[2:]) |
| got := guid.String() |
| if got != want { |
| t.Fatalf("String = %q; want %q", got, want) |
| } |
| guid2, err := windows.GUIDFromString(got) |
| if err != nil { |
| t.Fatal(err) |
| } |
| if guid2 != guid { |
| t.Fatalf("Did not parse string back to original GUID = %q; want %q", guid2, guid) |
| } |
| _, err = windows.GUIDFromString("not-a-real-guid") |
| if err != syscall.Errno(windows.CO_E_CLASSSTRING) { |
| t.Fatalf("Bad GUID string error = %v; want CO_E_CLASSSTRING", err) |
| } |
| } |
| |
| func TestKnownFolderPath(t *testing.T) { |
| token, err := windows.OpenCurrentProcessToken() |
| if err != nil { |
| t.Fatal(err) |
| } |
| defer token.Close() |
| profileDir, err := token.GetUserProfileDirectory() |
| if err != nil { |
| t.Fatal(err) |
| } |
| want := filepath.Join(profileDir, "Desktop") |
| got, err := windows.KnownFolderPath(windows.FOLDERID_Desktop, windows.KF_FLAG_DEFAULT) |
| if err != nil { |
| t.Fatal(err) |
| } |
| if want != got { |
| t.Fatalf("Path = %q; want %q", got, want) |
| } |
| } |
| |
| func TestRtlGetVersion(t *testing.T) { |
| version := windows.RtlGetVersion() |
| major, minor, build := windows.RtlGetNtVersionNumbers() |
| // Go is not explictly added to the application compatibility database, so |
| // these two functions should return the same thing. |
| if version.MajorVersion != major || version.MinorVersion != minor || version.BuildNumber != build { |
| t.Fatalf("%d.%d.%d != %d.%d.%d", version.MajorVersion, version.MinorVersion, version.BuildNumber, major, minor, build) |
| } |
| } |
| |
| func TestGetNamedSecurityInfo(t *testing.T) { |
| path, err := windows.GetSystemDirectory() |
| if err != nil { |
| t.Fatal(err) |
| } |
| sd, err := windows.GetNamedSecurityInfo(path, windows.SE_FILE_OBJECT, windows.OWNER_SECURITY_INFORMATION) |
| if err != nil { |
| t.Fatal(err) |
| } |
| if !sd.IsValid() { |
| t.Fatal("Invalid security descriptor") |
| } |
| sdOwner, _, err := sd.Owner() |
| if err != nil { |
| t.Fatal(err) |
| } |
| if !sdOwner.IsValid() { |
| t.Fatal("Invalid security descriptor owner") |
| } |
| } |
| |
| func TestGetSecurityInfo(t *testing.T) { |
| sd, err := windows.GetSecurityInfo(windows.CurrentProcess(), windows.SE_KERNEL_OBJECT, windows.DACL_SECURITY_INFORMATION) |
| if err != nil { |
| t.Fatal(err) |
| } |
| if !sd.IsValid() { |
| t.Fatal("Invalid security descriptor") |
| } |
| sdStr := sd.String() |
| if !strings.HasPrefix(sdStr, "D:(A;") { |
| t.Fatalf("DACL = %q; want D:(A;...", sdStr) |
| } |
| } |
| |
| func TestSddlConversion(t *testing.T) { |
| sd, err := windows.SecurityDescriptorFromString("O:BA") |
| if err != nil { |
| t.Fatal(err) |
| } |
| if !sd.IsValid() { |
| t.Fatal("Invalid security descriptor") |
| } |
| sdOwner, _, err := sd.Owner() |
| if err != nil { |
| t.Fatal(err) |
| } |
| if !sdOwner.IsValid() { |
| t.Fatal("Invalid security descriptor owner") |
| } |
| if !sdOwner.IsWellKnown(windows.WinBuiltinAdministratorsSid) { |
| t.Fatalf("Owner = %q; want S-1-5-32-544", sdOwner) |
| } |
| } |
| |
| func TestBuildSecurityDescriptor(t *testing.T) { |
| const want = "O:SYD:(A;;GA;;;BA)" |
| |
| adminSid, err := windows.CreateWellKnownSid(windows.WinBuiltinAdministratorsSid) |
| if err != nil { |
| t.Fatal(err) |
| } |
| systemSid, err := windows.CreateWellKnownSid(windows.WinLocalSystemSid) |
| if err != nil { |
| t.Fatal(err) |
| } |
| |
| access := []windows.EXPLICIT_ACCESS{{ |
| AccessPermissions: windows.GENERIC_ALL, |
| AccessMode: windows.GRANT_ACCESS, |
| Trustee: windows.TRUSTEE{ |
| TrusteeForm: windows.TRUSTEE_IS_SID, |
| TrusteeType: windows.TRUSTEE_IS_GROUP, |
| TrusteeValue: windows.TrusteeValueFromSID(adminSid), |
| }, |
| }} |
| owner := &windows.TRUSTEE{ |
| TrusteeForm: windows.TRUSTEE_IS_SID, |
| TrusteeType: windows.TRUSTEE_IS_USER, |
| TrusteeValue: windows.TrusteeValueFromSID(systemSid), |
| } |
| |
| sd, err := windows.BuildSecurityDescriptor(owner, nil, access, nil, nil) |
| if err != nil { |
| t.Fatal(err) |
| } |
| sd, err = sd.ToAbsolute() |
| if err != nil { |
| t.Fatal(err) |
| } |
| err = sd.SetSACL(nil, false, false) |
| if err != nil { |
| t.Fatal(err) |
| } |
| if got := sd.String(); got != want { |
| t.Fatalf("SD = %q; want %q", got, want) |
| } |
| sd, err = sd.ToSelfRelative() |
| if err != nil { |
| t.Fatal(err) |
| } |
| if got := sd.String(); got != want { |
| t.Fatalf("SD = %q; want %q", got, want) |
| } |
| |
| sd, err = windows.NewSecurityDescriptor() |
| if err != nil { |
| t.Fatal(err) |
| } |
| acl, err := windows.ACLFromEntries(access, nil) |
| if err != nil { |
| t.Fatal(err) |
| } |
| err = sd.SetDACL(acl, true, false) |
| if err != nil { |
| t.Fatal(err) |
| } |
| err = sd.SetOwner(systemSid, false) |
| if err != nil { |
| t.Fatal(err) |
| } |
| if got := sd.String(); got != want { |
| t.Fatalf("SD = %q; want %q", got, want) |
| } |
| sd, err = sd.ToSelfRelative() |
| if err != nil { |
| t.Fatal(err) |
| } |
| if got := sd.String(); got != want { |
| t.Fatalf("SD = %q; want %q", got, want) |
| } |
| } |
| |
| func TestGetDiskFreeSpaceEx(t *testing.T) { |
| cwd, err := windows.UTF16PtrFromString(".") |
| if err != nil { |
| t.Fatalf(`failed to call UTF16PtrFromString("."): %v`, err) |
| } |
| var freeBytesAvailableToCaller, totalNumberOfBytes, totalNumberOfFreeBytes uint64 |
| if err := windows.GetDiskFreeSpaceEx(cwd, &freeBytesAvailableToCaller, &totalNumberOfBytes, &totalNumberOfFreeBytes); err != nil { |
| t.Fatalf("failed to call GetDiskFreeSpaceEx: %v", err) |
| } |
| |
| if freeBytesAvailableToCaller == 0 { |
| t.Errorf("freeBytesAvailableToCaller: got 0; want > 0") |
| } |
| if totalNumberOfBytes == 0 { |
| t.Errorf("totalNumberOfBytes: got 0; want > 0") |
| } |
| if totalNumberOfFreeBytes == 0 { |
| t.Errorf("totalNumberOfFreeBytes: got 0; want > 0") |
| } |
| } |
| |
| func TestGetPreferredUILanguages(t *testing.T) { |
| tab := map[string]func(flags uint32) ([]string, error){ |
| "GetProcessPreferredUILanguages": windows.GetProcessPreferredUILanguages, |
| "GetThreadPreferredUILanguages": windows.GetThreadPreferredUILanguages, |
| "GetUserPreferredUILanguages": windows.GetUserPreferredUILanguages, |
| "GetSystemPreferredUILanguages": windows.GetSystemPreferredUILanguages, |
| } |
| for fName, f := range tab { |
| lang, err := f(windows.MUI_LANGUAGE_ID) |
| if err != nil { |
| t.Errorf(`failed to call %v(MUI_LANGUAGE_ID): %v`, fName, err) |
| } |
| for _, l := range lang { |
| _, err := strconv.ParseUint(l, 16, 16) |
| if err != nil { |
| t.Errorf(`%v(MUI_LANGUAGE_ID) returned unexpected LANGID: %v`, fName, l) |
| } |
| } |
| |
| lang, err = f(windows.MUI_LANGUAGE_NAME) |
| if err != nil { |
| t.Errorf(`failed to call %v(MUI_LANGUAGE_NAME): %v`, fName, err) |
| } |
| } |
| } |
| |
| func TestProcessWorkingSetSizeEx(t *testing.T) { |
| // Grab a handle to the current process |
| hProcess := windows.CurrentProcess() |
| |
| // Allocate memory to store the result of the query |
| var minimumWorkingSetSize, maximumWorkingSetSize uintptr |
| |
| // Make the system-call |
| var flag uint32 |
| windows.GetProcessWorkingSetSizeEx(hProcess, &minimumWorkingSetSize, &maximumWorkingSetSize, &flag) |
| |
| // Set the new limits to the current ones |
| if err := windows.SetProcessWorkingSetSizeEx(hProcess, minimumWorkingSetSize, maximumWorkingSetSize, flag); err != nil { |
| t.Error(err) |
| } |
| } |
| |
| func TestJobObjectInfo(t *testing.T) { |
| jo, err := windows.CreateJobObject(nil, nil) |
| if err != nil { |
| t.Fatalf("CreateJobObject failed: %v", err) |
| } |
| defer windows.CloseHandle(jo) |
| |
| var info windows.JOBOBJECT_EXTENDED_LIMIT_INFORMATION |
| |
| err = windows.QueryInformationJobObject(jo, windows.JobObjectExtendedLimitInformation, |
| uintptr(unsafe.Pointer(&info)), uint32(unsafe.Sizeof(info)), nil) |
| if err != nil { |
| t.Fatalf("QueryInformationJobObject failed: %v", err) |
| } |
| |
| const wantMemLimit = 4 * 1024 |
| |
| info.BasicLimitInformation.LimitFlags |= windows.JOB_OBJECT_LIMIT_PROCESS_MEMORY |
| info.ProcessMemoryLimit = wantMemLimit |
| _, err = windows.SetInformationJobObject(jo, windows.JobObjectExtendedLimitInformation, |
| uintptr(unsafe.Pointer(&info)), uint32(unsafe.Sizeof(info))) |
| if err != nil { |
| t.Fatalf("SetInformationJobObject failed: %v", err) |
| } |
| |
| err = windows.QueryInformationJobObject(jo, windows.JobObjectExtendedLimitInformation, |
| uintptr(unsafe.Pointer(&info)), uint32(unsafe.Sizeof(info)), nil) |
| if err != nil { |
| t.Fatalf("QueryInformationJobObject failed: %v", err) |
| } |
| |
| if have := info.ProcessMemoryLimit; wantMemLimit != have { |
| t.Errorf("ProcessMemoryLimit is wrong: want %v have %v", wantMemLimit, have) |
| } |
| } |
| |
| func TestIsWow64Process2(t *testing.T) { |
| var processMachine, nativeMachine uint16 |
| err := windows.IsWow64Process2(windows.CurrentProcess(), &processMachine, &nativeMachine) |
| if errors.Is(err, windows.ERROR_PROC_NOT_FOUND) { |
| maj, min, build := windows.RtlGetNtVersionNumbers() |
| if maj < 10 || (maj == 10 && min == 0 && build < 17763) { |
| t.Skip("not available on older versions of Windows") |
| return |
| } |
| } |
| if err != nil { |
| t.Fatalf("IsWow64Process2 failed: %v", err) |
| } |
| if processMachine == pe.IMAGE_FILE_MACHINE_UNKNOWN { |
| processMachine = nativeMachine |
| } |
| switch { |
| case processMachine == pe.IMAGE_FILE_MACHINE_AMD64 && runtime.GOARCH == "amd64": |
| case processMachine == pe.IMAGE_FILE_MACHINE_I386 && runtime.GOARCH == "386": |
| case processMachine == pe.IMAGE_FILE_MACHINE_ARMNT && runtime.GOARCH == "arm": |
| case processMachine == pe.IMAGE_FILE_MACHINE_ARM64 && runtime.GOARCH == "arm64": |
| default: |
| t.Errorf("IsWow64Process2 is wrong: want %v have %v", runtime.GOARCH, processMachine) |
| } |
| } |
| |
| func TestNTStatusString(t *testing.T) { |
| want := "The name limit for the local computer network adapter card was exceeded." |
| got := windows.STATUS_TOO_MANY_NAMES.Error() |
| if want != got { |
| t.Errorf("NTStatus.Error did not return an expected error string - want %q; got %q", want, got) |
| } |
| } |
| |
| func TestNTStatusConversion(t *testing.T) { |
| want := windows.ERROR_TOO_MANY_NAMES |
| got := windows.STATUS_TOO_MANY_NAMES.Errno() |
| if want != got { |
| t.Errorf("NTStatus.Errno = %q (0x%x); want %q (0x%x)", got.Error(), got, want.Error(), want) |
| } |
| } |
| |
| func TestPEBFilePath(t *testing.T) { |
| peb := windows.RtlGetCurrentPeb() |
| if peb == nil || peb.Ldr == nil { |
| t.Error("unable to retrieve PEB with valid Ldr") |
| } |
| var entry *windows.LDR_DATA_TABLE_ENTRY |
| for cur := peb.Ldr.InMemoryOrderModuleList.Flink; cur != &peb.Ldr.InMemoryOrderModuleList; cur = cur.Flink { |
| e := (*windows.LDR_DATA_TABLE_ENTRY)(unsafe.Pointer(uintptr(unsafe.Pointer(cur)) - unsafe.Offsetof(windows.LDR_DATA_TABLE_ENTRY{}.InMemoryOrderLinks))) |
| if e.DllBase == peb.ImageBaseAddress { |
| entry = e |
| break |
| } |
| } |
| if entry == nil { |
| t.Error("unable to find Ldr entry for current process") |
| } |
| osPath, err := os.Executable() |
| if err != nil { |
| t.Errorf("unable to get path to current executable: %v", err) |
| } |
| pebPath := entry.FullDllName.String() |
| if osPath != pebPath { |
| t.Errorf("peb.Ldr.{entry}.FullDllName = %#q; want %#q", pebPath, osPath) |
| } |
| paramPath := peb.ProcessParameters.ImagePathName.String() |
| if osPath != paramPath { |
| t.Errorf("peb.ProcessParameters.ImagePathName.{entry}.ImagePathName = %#q; want %#q", paramPath, osPath) |
| } |
| osCwd, err := os.Getwd() |
| if err != nil { |
| t.Errorf("unable to get working directory: %v", err) |
| } |
| osCwd = filepath.Clean(osCwd) |
| paramCwd := filepath.Clean(peb.ProcessParameters.CurrentDirectory.DosPath.String()) |
| if paramCwd != osCwd { |
| t.Errorf("peb.ProcessParameters.CurrentDirectory.DosPath = %#q; want %#q", paramCwd, osCwd) |
| } |
| } |
| |
| func TestResourceExtraction(t *testing.T) { |
| system32, err := windows.GetSystemDirectory() |
| if err != nil { |
| t.Errorf("unable to find system32 directory: %v", err) |
| } |
| cmd, err := windows.LoadLibrary(filepath.Join(system32, "cmd.exe")) |
| if err != nil { |
| t.Errorf("unable to load cmd.exe: %v", err) |
| } |
| defer windows.FreeLibrary(cmd) |
| rsrc, err := windows.FindResource(cmd, windows.CREATEPROCESS_MANIFEST_RESOURCE_ID, windows.RT_MANIFEST) |
| if err != nil { |
| t.Errorf("unable to find cmd.exe manifest resource: %v", err) |
| } |
| manifest, err := windows.LoadResourceData(cmd, rsrc) |
| if err != nil { |
| t.Errorf("unable to load cmd.exe manifest resource data: %v", err) |
| } |
| if !bytes.Contains(manifest, []byte("</assembly>")) { |
| t.Errorf("did not find </assembly> in manifest") |
| } |
| } |
| |
| func TestCommandLineRecomposition(t *testing.T) { |
| const ( |
| maxCharsPerArg = 35 |
| maxArgsPerTrial = 80 |
| doubleQuoteProb = 4 |
| singleQuoteProb = 1 |
| backSlashProb = 3 |
| spaceProb = 1 |
| trials = 1000 |
| ) |
| randString := func(l int) []rune { |
| s := make([]rune, l) |
| for i := range s { |
| s[i] = rand.Int31() |
| } |
| return s |
| } |
| mungeString := func(s []rune, char rune, timesInTen int) { |
| if timesInTen < rand.Intn(10)+1 || len(s) == 0 { |
| return |
| } |
| s[rand.Intn(len(s))] = char |
| } |
| argStorage := make([]string, maxArgsPerTrial+1) |
| for i := 0; i < trials; i++ { |
| args := argStorage[:rand.Intn(maxArgsPerTrial)+2] |
| args[0] = "valid-filename-for-arg0" |
| for j := 1; j < len(args); j++ { |
| arg := randString(rand.Intn(maxCharsPerArg + 1)) |
| mungeString(arg, '"', doubleQuoteProb) |
| mungeString(arg, '\'', singleQuoteProb) |
| mungeString(arg, '\\', backSlashProb) |
| mungeString(arg, ' ', spaceProb) |
| args[j] = string(arg) |
| } |
| commandLine := windows.ComposeCommandLine(args) |
| decomposedArgs, err := windows.DecomposeCommandLine(commandLine) |
| if err != nil { |
| t.Errorf("Unable to decompose %#q made from %v: %v", commandLine, args, err) |
| continue |
| } |
| if len(decomposedArgs) != len(args) { |
| t.Errorf("Incorrect decomposition length from %v to %#q to %v", args, commandLine, decomposedArgs) |
| continue |
| } |
| badMatches := make([]int, 0, len(args)) |
| for i := range args { |
| if args[i] != decomposedArgs[i] { |
| badMatches = append(badMatches, i) |
| } |
| } |
| if len(badMatches) != 0 { |
| t.Errorf("Incorrect decomposition at indices %v from %v to %#q to %v", badMatches, args, commandLine, decomposedArgs) |
| continue |
| } |
| } |
| } |
| |
| func TestWinVerifyTrust(t *testing.T) { |
| evsignedfile := `.\testdata\ev-signed-file.exe` |
| evsignedfile16, err := windows.UTF16PtrFromString(evsignedfile) |
| if err != nil { |
| t.Fatalf("unable to get utf16 of %s: %v", evsignedfile, err) |
| } |
| data := &windows.WinTrustData{ |
| Size: uint32(unsafe.Sizeof(windows.WinTrustData{})), |
| UIChoice: windows.WTD_UI_NONE, |
| RevocationChecks: windows.WTD_REVOKE_NONE, // No revocation checking, in case the tests don't have network connectivity. |
| UnionChoice: windows.WTD_CHOICE_FILE, |
| StateAction: windows.WTD_STATEACTION_VERIFY, |
| FileOrCatalogOrBlobOrSgnrOrCert: unsafe.Pointer(&windows.WinTrustFileInfo{ |
| Size: uint32(unsafe.Sizeof(windows.WinTrustFileInfo{})), |
| FilePath: evsignedfile16, |
| }), |
| } |
| verifyErr := windows.WinVerifyTrustEx(windows.InvalidHWND, &windows.WINTRUST_ACTION_GENERIC_VERIFY_V2, data) |
| data.StateAction = windows.WTD_STATEACTION_CLOSE |
| closeErr := windows.WinVerifyTrustEx(windows.InvalidHWND, &windows.WINTRUST_ACTION_GENERIC_VERIFY_V2, data) |
| if verifyErr != nil { |
| t.Errorf("%s did not verify: %v", evsignedfile, verifyErr) |
| } |
| if closeErr != nil { |
| t.Errorf("unable to free verification resources: %v", closeErr) |
| } |
| |
| // Now that we've verified the legitimate file verifies, let's corrupt it and see if it correctly fails. |
| |
| dir, err := ioutil.TempDir("", "go-build") |
| if err != nil { |
| t.Fatalf("failed to create temp directory: %v", err) |
| } |
| defer os.RemoveAll(dir) |
| corruptedEvsignedfile := filepath.Join(dir, "corrupted-file") |
| evsignedfileBytes, err := ioutil.ReadFile(evsignedfile) |
| if err != nil { |
| t.Fatalf("unable to read %s bytes: %v", evsignedfile, err) |
| } |
| if len(evsignedfileBytes) > 0 { |
| evsignedfileBytes[len(evsignedfileBytes)/2-1]++ |
| } |
| err = ioutil.WriteFile(corruptedEvsignedfile, evsignedfileBytes, 0755) |
| if err != nil { |
| t.Fatalf("unable to write corrupted ntoskrnl.exe bytes: %v", err) |
| } |
| evsignedfile16, err = windows.UTF16PtrFromString(corruptedEvsignedfile) |
| if err != nil { |
| t.Fatalf("unable to get utf16 of ntoskrnl.exe: %v", err) |
| } |
| data = &windows.WinTrustData{ |
| Size: uint32(unsafe.Sizeof(windows.WinTrustData{})), |
| UIChoice: windows.WTD_UI_NONE, |
| RevocationChecks: windows.WTD_REVOKE_NONE, // No revocation checking, in case the tests don't have network connectivity. |
| UnionChoice: windows.WTD_CHOICE_FILE, |
| StateAction: windows.WTD_STATEACTION_VERIFY, |
| FileOrCatalogOrBlobOrSgnrOrCert: unsafe.Pointer(&windows.WinTrustFileInfo{ |
| Size: uint32(unsafe.Sizeof(windows.WinTrustFileInfo{})), |
| FilePath: evsignedfile16, |
| }), |
| } |
| verifyErr = windows.WinVerifyTrustEx(windows.InvalidHWND, &windows.WINTRUST_ACTION_GENERIC_VERIFY_V2, data) |
| data.StateAction = windows.WTD_STATEACTION_CLOSE |
| closeErr = windows.WinVerifyTrustEx(windows.InvalidHWND, &windows.WINTRUST_ACTION_GENERIC_VERIFY_V2, data) |
| if verifyErr != windows.Errno(windows.TRUST_E_BAD_DIGEST) { |
| t.Errorf("%s did not fail to verify as expected: %v", corruptedEvsignedfile, verifyErr) |
| } |
| if closeErr != nil { |
| t.Errorf("unable to free verification resources: %v", closeErr) |
| } |
| |
| } |
| |
| func TestProcessModules(t *testing.T) { |
| process, err := windows.GetCurrentProcess() |
| if err != nil { |
| t.Fatalf("unable to get current process: %v", err) |
| } |
| // NB: Assume that we're always the first module. This technically isn't documented anywhere (that I could find), but seems to always hold. |
| var module windows.Handle |
| var cbNeeded uint32 |
| err = windows.EnumProcessModules(process, &module, uint32(unsafe.Sizeof(module)), &cbNeeded) |
| if err != nil { |
| t.Fatalf("EnumProcessModules failed: %v", err) |
| } |
| |
| var moduleEx windows.Handle |
| err = windows.EnumProcessModulesEx(process, &moduleEx, uint32(unsafe.Sizeof(moduleEx)), &cbNeeded, windows.LIST_MODULES_DEFAULT) |
| if err != nil { |
| t.Fatalf("EnumProcessModulesEx failed: %v", err) |
| } |
| if module != moduleEx { |
| t.Fatalf("module from EnumProcessModules does not match EnumProcessModulesEx: %v != %v", module, moduleEx) |
| } |
| |
| exePath, err := os.Executable() |
| if err != nil { |
| t.Fatalf("unable to get current executable path: %v", err) |
| } |
| |
| modulePathUTF16 := make([]uint16, len(exePath)+1) |
| err = windows.GetModuleFileNameEx(process, module, &modulePathUTF16[0], uint32(len(modulePathUTF16))) |
| if err != nil { |
| t.Fatalf("GetModuleFileNameEx failed: %v", err) |
| } |
| |
| modulePath := windows.UTF16ToString(modulePathUTF16) |
| if modulePath != exePath { |
| t.Fatalf("module does not match executable for GetModuleFileNameEx: %s != %s", modulePath, exePath) |
| } |
| |
| err = windows.GetModuleBaseName(process, module, &modulePathUTF16[0], uint32(len(modulePathUTF16))) |
| if err != nil { |
| t.Fatalf("GetModuleBaseName failed: %v", err) |
| } |
| |
| modulePath = windows.UTF16ToString(modulePathUTF16) |
| baseExePath := filepath.Base(exePath) |
| if modulePath != baseExePath { |
| t.Fatalf("module does not match executable for GetModuleBaseName: %s != %s", modulePath, baseExePath) |
| } |
| |
| var moduleInfo windows.ModuleInfo |
| err = windows.GetModuleInformation(process, module, &moduleInfo, uint32(unsafe.Sizeof(moduleInfo))) |
| if err != nil { |
| t.Fatalf("GetModuleInformation failed: %v", err) |
| } |
| |
| peFile, err := pe.Open(exePath) |
| if err != nil { |
| t.Fatalf("unable to open current executable: %v", err) |
| } |
| defer peFile.Close() |
| |
| var peSizeOfImage uint32 |
| switch runtime.GOARCH { |
| case "amd64", "arm64": |
| peSizeOfImage = peFile.OptionalHeader.(*pe.OptionalHeader64).SizeOfImage |
| case "386", "arm": |
| peSizeOfImage = peFile.OptionalHeader.(*pe.OptionalHeader32).SizeOfImage |
| default: |
| t.Fatalf("unable to test GetModuleInformation on arch %v", runtime.GOARCH) |
| } |
| |
| if moduleInfo.SizeOfImage != peSizeOfImage { |
| t.Fatalf("module size does not match executable: %v != %v", moduleInfo.SizeOfImage, peSizeOfImage) |
| } |
| } |
| |
| func TestQueryWorkingSetEx(t *testing.T) { |
| var a int |
| |
| process := windows.CurrentProcess() |
| information := windows.PSAPI_WORKING_SET_EX_INFORMATION{ |
| VirtualAddress: windows.Pointer(unsafe.Pointer(&a)), |
| } |
| infos := []windows.PSAPI_WORKING_SET_EX_INFORMATION{information} |
| |
| cb := uint32(uintptr(len(infos)) * unsafe.Sizeof(infos[0])) |
| if err := windows.QueryWorkingSetEx(process, uintptr(unsafe.Pointer(&infos[0])), cb); err != nil { |
| t.Fatalf("%+v", err) |
| } |
| |
| if !infos[0].VirtualAttributes.Valid() { |
| t.Errorf("memory location not valid") |
| } |
| } |
| |
| func TestReadWriteProcessMemory(t *testing.T) { |
| testBuffer := []byte{0xBA, 0xAD, 0xF0, 0x0D} |
| |
| process, err := windows.GetCurrentProcess() |
| if err != nil { |
| t.Fatalf("unable to get current process: %v", err) |
| } |
| |
| buffer := make([]byte, len(testBuffer)) |
| err = windows.ReadProcessMemory(process, uintptr(unsafe.Pointer(&testBuffer[0])), &buffer[0], uintptr(len(buffer)), nil) |
| if err != nil { |
| t.Errorf("ReadProcessMemory failed: %v", err) |
| } |
| if !bytes.Equal(testBuffer, buffer) { |
| t.Errorf("bytes read does not match buffer: 0x%X != 0x%X", testBuffer, buffer) |
| } |
| |
| buffer = []byte{0xDE, 0xAD, 0xBE, 0xEF} |
| err = windows.WriteProcessMemory(process, uintptr(unsafe.Pointer(&testBuffer[0])), &buffer[0], uintptr(len(buffer)), nil) |
| if err != nil { |
| t.Errorf("WriteProcessMemory failed: %v", err) |
| } |
| if !bytes.Equal(testBuffer, buffer) { |
| t.Errorf("bytes written does not match buffer: 0x%X != 0x%X", testBuffer, buffer) |
| } |
| } |
| |
| func TestSystemModuleVersions(t *testing.T) { |
| var modules []windows.RTL_PROCESS_MODULE_INFORMATION |
| for bufferSize := uint32(128 * 1024); ; { |
| moduleBuffer := make([]byte, bufferSize) |
| err := windows.NtQuerySystemInformation(windows.SystemModuleInformation, unsafe.Pointer(&moduleBuffer[0]), bufferSize, &bufferSize) |
| switch err { |
| case windows.STATUS_INFO_LENGTH_MISMATCH: |
| continue |
| case nil: |
| break |
| default: |
| t.Error(err) |
| return |
| } |
| mods := (*windows.RTL_PROCESS_MODULES)(unsafe.Pointer(&moduleBuffer[0])) |
| hdr := (*unsafeheader.Slice)(unsafe.Pointer(&modules)) |
| hdr.Data = unsafe.Pointer(&mods.Modules[0]) |
| hdr.Len = int(mods.NumberOfModules) |
| hdr.Cap = int(mods.NumberOfModules) |
| break |
| } |
| for i := range modules { |
| moduleName := windows.ByteSliceToString(modules[i].FullPathName[modules[i].OffsetToFileName:]) |
| driverPath := `\\?\GLOBALROOT` + windows.ByteSliceToString(modules[i].FullPathName[:]) |
| var zero windows.Handle |
| infoSize, err := windows.GetFileVersionInfoSize(driverPath, &zero) |
| if err != nil { |
| if err != windows.ERROR_FILE_NOT_FOUND { |
| t.Error(err) |
| } |
| continue |
| } |
| versionInfo := make([]byte, infoSize) |
| err = windows.GetFileVersionInfo(driverPath, 0, infoSize, unsafe.Pointer(&versionInfo[0])) |
| if err != nil && err != windows.ERROR_FILE_NOT_FOUND { |
| t.Error(err) |
| continue |
| } |
| var fixedInfo *windows.VS_FIXEDFILEINFO |
| fixedInfoLen := uint32(unsafe.Sizeof(*fixedInfo)) |
| err = windows.VerQueryValue(unsafe.Pointer(&versionInfo[0]), `\`, (unsafe.Pointer)(&fixedInfo), &fixedInfoLen) |
| if err != nil { |
| t.Error(err) |
| continue |
| } |
| t.Logf("%s: v%d.%d.%d.%d", moduleName, |
| (fixedInfo.FileVersionMS>>16)&0xff, |
| (fixedInfo.FileVersionMS>>0)&0xff, |
| (fixedInfo.FileVersionLS>>16)&0xff, |
| (fixedInfo.FileVersionLS>>0)&0xff) |
| } |
| } |
| |
| type fileRenameInformation struct { |
| ReplaceIfExists uint32 |
| RootDirectory windows.Handle |
| FileNameLength uint32 |
| FileName [1]uint16 |
| } |
| |
| func TestNtCreateFileAndNtSetInformationFile(t *testing.T) { |
| var iosb windows.IO_STATUS_BLOCK |
| var allocSize int64 = 0 |
| // Open test directory with NtCreateFile. |
| testDirPath := t.TempDir() |
| objectName, err := windows.NewNTUnicodeString("\\??\\" + testDirPath) |
| if err != nil { |
| t.Fatal(err) |
| } |
| oa := &windows.OBJECT_ATTRIBUTES{ |
| ObjectName: objectName, |
| } |
| oa.Length = uint32(unsafe.Sizeof(*oa)) |
| var testDirHandle windows.Handle |
| err = windows.NtCreateFile(&testDirHandle, windows.FILE_GENERIC_READ|windows.FILE_GENERIC_WRITE, oa, &iosb, |
| &allocSize, 0, windows.FILE_SHARE_READ|windows.FILE_SHARE_WRITE|windows.FILE_SHARE_DELETE, windows.FILE_OPEN, |
| windows.FILE_DIRECTORY_FILE, 0, 0) |
| if err != nil { |
| t.Fatalf("NtCreateFile(%v) failed: %v", testDirPath, err) |
| } |
| defer windows.CloseHandle(testDirHandle) |
| // Create a file in test directory with NtCreateFile. |
| fileName := "filename" |
| filePath := filepath.Join(testDirPath, fileName) |
| objectName, err = windows.NewNTUnicodeString(fileName) |
| if err != nil { |
| t.Fatal(err) |
| } |
| oa.RootDirectory = testDirHandle |
| oa.ObjectName = objectName |
| var fileHandle windows.Handle |
| err = windows.NtCreateFile(&fileHandle, windows.FILE_GENERIC_READ|windows.FILE_GENERIC_WRITE|windows.DELETE, oa, &iosb, |
| &allocSize, 0, windows.FILE_SHARE_READ|windows.FILE_SHARE_WRITE|windows.FILE_SHARE_DELETE, windows.FILE_CREATE, |
| 0, 0, 0) |
| if err != nil { |
| t.Fatalf("NtCreateFile(%v) failed: %v", filePath, err) |
| } |
| defer windows.CloseHandle(fileHandle) |
| _, err = os.Stat(filePath) |
| if err != nil { |
| t.Fatalf("cannot stat file created with NtCreatefile: %v", err) |
| } |
| // Rename file with NtSetInformationFile. |
| newName := "newname" |
| newPath := filepath.Join(testDirPath, newName) |
| newNameUTF16, err := windows.UTF16FromString(newName) |
| if err != nil { |
| t.Fatal(err) |
| } |
| fileNameLen := len(newNameUTF16)*2 - 2 |
| var dummyFileRenameInfo fileRenameInformation |
| bufferSize := int(unsafe.Offsetof(dummyFileRenameInfo.FileName)) + fileNameLen |
| buffer := make([]byte, bufferSize) |
| typedBufferPtr := (*fileRenameInformation)(unsafe.Pointer(&buffer[0])) |
| typedBufferPtr.ReplaceIfExists = windows.FILE_RENAME_REPLACE_IF_EXISTS | windows.FILE_RENAME_POSIX_SEMANTICS |
| typedBufferPtr.FileNameLength = uint32(fileNameLen) |
| copy((*[windows.MAX_LONG_PATH]uint16)(unsafe.Pointer(&typedBufferPtr.FileName[0]))[:fileNameLen/2:fileNameLen/2], newNameUTF16) |
| err = windows.NtSetInformationFile(fileHandle, &iosb, &buffer[0], uint32(bufferSize), windows.FileRenameInformation) |
| if err != nil { |
| t.Fatalf("NtSetInformationFile(%v) failed: %v", newPath, err) |
| } |
| _, err = os.Stat(newPath) |
| if err != nil { |
| t.Fatalf("cannot stat rename target %v: %v", newPath, err) |
| } |
| } |
| |
| var deviceClassNetGUID = &windows.GUID{0x4d36e972, 0xe325, 0x11ce, [8]byte{0xbf, 0xc1, 0x08, 0x00, 0x2b, 0xe1, 0x03, 0x18}} |
| var deviceInterfaceNetGUID = &windows.GUID{0xcac88484, 0x7515, 0x4c03, [8]byte{0x82, 0xe6, 0x71, 0xa8, 0x7a, 0xba, 0xc3, 0x61}} |
| |
| func TestListLoadedNetworkDevices(t *testing.T) { |
| devInfo, err := windows.SetupDiGetClassDevsEx(deviceClassNetGUID, "", 0, windows.DIGCF_PRESENT, 0, "") |
| if err != nil { |
| t.Fatal(err) |
| } |
| defer devInfo.Close() |
| for i := 0; ; i++ { |
| devInfoData, err := devInfo.EnumDeviceInfo(i) |
| if err != nil { |
| if err == windows.ERROR_NO_MORE_ITEMS { |
| break |
| } |
| continue |
| } |
| friendlyName, err := devInfo.DeviceRegistryProperty(devInfoData, windows.SPDRP_DEVICEDESC) |
| if err != nil { |
| t.Fatal(err) |
| } |
| var status, problemCode uint32 |
| err = windows.CM_Get_DevNode_Status(&status, &problemCode, devInfoData.DevInst, 0) |
| if err != nil || (status&windows.DN_DRIVER_LOADED|windows.DN_STARTED) != windows.DN_DRIVER_LOADED|windows.DN_STARTED { |
| continue |
| } |
| instanceId, err := devInfo.DeviceInstanceID(devInfoData) |
| if err != nil { |
| t.Fatal(err) |
| } |
| interfaces, err := windows.CM_Get_Device_Interface_List(instanceId, deviceInterfaceNetGUID, windows.CM_GET_DEVICE_INTERFACE_LIST_PRESENT) |
| if err != nil || len(interfaces) == 0 { |
| continue |
| } |
| t.Logf("%s - %s", friendlyName, interfaces[0]) |
| } |
| } |
| |
| func TestListWireGuardDrivers(t *testing.T) { |
| devInfo, err := windows.SetupDiCreateDeviceInfoListEx(deviceClassNetGUID, 0, "") |
| if err != nil { |
| t.Fatal(err) |
| } |
| defer devInfo.Close() |
| devInfoData, err := devInfo.CreateDeviceInfo("WireGuard", deviceClassNetGUID, "", 0, windows.DICD_GENERATE_ID) |
| if err != nil { |
| t.Fatal(err) |
| } |
| err = devInfo.SetDeviceRegistryProperty(devInfoData, windows.SPDRP_HARDWAREID, []byte("W\x00i\x00r\x00e\x00G\x00u\x00a\x00r\x00d\x00\x00\x00\x00\x00")) |
| if err != nil { |
| t.Fatal(err) |
| } |
| err = devInfo.BuildDriverInfoList(devInfoData, windows.SPDIT_COMPATDRIVER) |
| if err != nil { |
| t.Fatal(err) |
| } |
| defer devInfo.DestroyDriverInfoList(devInfoData, windows.SPDIT_COMPATDRIVER) |
| for i := 0; ; i++ { |
| drvInfoData, err := devInfo.EnumDriverInfo(devInfoData, windows.SPDIT_COMPATDRIVER, i) |
| if err != nil { |
| if err == windows.ERROR_NO_MORE_ITEMS { |
| break |
| } |
| continue |
| } |
| drvInfoDetailData, err := devInfo.DriverInfoDetail(devInfoData, drvInfoData) |
| if err != nil { |
| t.Error(err) |
| continue |
| } |
| t.Logf("%s - %s", drvInfoData.Description(), drvInfoDetailData.InfFileName()) |
| } |
| } |
| |
| func TestProcThreadAttributeHandleList(t *testing.T) { |
| const sentinel = "the gopher dance" |
| system32, err := windows.GetSystemDirectory() |
| if err != nil { |
| t.Fatal(err) |
| } |
| executable16, err := windows.UTF16PtrFromString(filepath.Join(system32, "cmd.exe")) |
| if err != nil { |
| t.Fatal(err) |
| } |
| args16, err := windows.UTF16PtrFromString(windows.ComposeCommandLine([]string{"/c", "echo " + sentinel})) |
| if err != nil { |
| t.Fatal(err) |
| } |
| attributeList, err := windows.NewProcThreadAttributeList(1) |
| if err != nil { |
| t.Fatal(err) |
| } |
| defer attributeList.Delete() |
| si := &windows.StartupInfoEx{ |
| StartupInfo: windows.StartupInfo{Cb: uint32(unsafe.Sizeof(windows.StartupInfoEx{}))}, |
| ProcThreadAttributeList: attributeList.List(), |
| } |
| pipeR, pipeW, err := os.Pipe() |
| if err != nil { |
| t.Fatal(err) |
| } |
| defer pipeR.Close() |
| defer pipeW.Close() |
| func() { |
| // We allocate handles in a closure to provoke a UaF in the case of attributeList.Update being buggy. |
| handles := []windows.Handle{windows.Handle(pipeW.Fd())} |
| attributeList.Update(windows.PROC_THREAD_ATTRIBUTE_HANDLE_LIST, unsafe.Pointer(&handles[0]), uintptr(len(handles))*unsafe.Sizeof(handles[0])) |
| si.Flags |= windows.STARTF_USESTDHANDLES |
| si.StdOutput = handles[0] |
| // Go 1.16's pipe handles aren't inheritable, so mark it explicitly as such here. |
| windows.SetHandleInformation(handles[0], windows.HANDLE_FLAG_INHERIT, windows.HANDLE_FLAG_INHERIT) |
| }() |
| pi := new(windows.ProcessInformation) |
| err = windows.CreateProcess(executable16, args16, nil, nil, true, windows.CREATE_DEFAULT_ERROR_MODE|windows.CREATE_UNICODE_ENVIRONMENT|windows.EXTENDED_STARTUPINFO_PRESENT, nil, nil, &si.StartupInfo, pi) |
| if err != nil { |
| t.Fatal(err) |
| } |
| defer windows.CloseHandle(pi.Thread) |
| defer windows.CloseHandle(pi.Process) |
| pipeR.SetReadDeadline(time.Now().Add(time.Minute)) |
| out, _, err := bufio.NewReader(pipeR).ReadLine() |
| if err != nil { |
| t.Fatal(err) |
| } |
| if string(out) != sentinel { |
| t.Fatalf("got %q; want %q", out, sentinel) |
| } |
| } |
| |
| func TestWSALookupService(t *testing.T) { |
| var flags uint32 = windows.LUP_CONTAINERS |
| flags |= windows.LUP_RETURN_NAME |
| flags |= windows.LUP_RETURN_ADDR |
| |
| var querySet windows.WSAQUERYSET |
| querySet.NameSpace = windows.NS_BTH |
| querySet.Size = uint32(unsafe.Sizeof(windows.WSAQUERYSET{})) |
| |
| var handle windows.Handle |
| err := windows.WSALookupServiceBegin(&querySet, flags, &handle) |
| if err != nil { |
| if errors.Is(err, windows.WSASERVICE_NOT_FOUND) { |
| t.Skip("WSA Service not found, so skip this test") |
| } |
| t.Fatal(err) |
| } |
| |
| defer windows.WSALookupServiceEnd(handle) |
| |
| n := int32(unsafe.Sizeof(windows.WSAQUERYSET{})) |
| buf := make([]byte, n) |
| items_loop: |
| for { |
| q := (*windows.WSAQUERYSET)(unsafe.Pointer(&buf[0])) |
| err := windows.WSALookupServiceNext(handle, flags, &n, q) |
| switch err { |
| case windows.WSA_E_NO_MORE, windows.WSAENOMORE: |
| // no more data available - break the loop |
| break items_loop |
| case windows.WSAEFAULT: |
| // buffer is too small - reallocate and try again |
| buf = make([]byte, n) |
| case nil: |
| // found a record - display the item and fetch next item |
| var addr string |
| for _, e := range q.SaBuffer.RemoteAddr.Sockaddr.Addr.Data { |
| if e != 0 { |
| addr += fmt.Sprintf("%x", e) |
| } |
| } |
| t.Logf("%s -> %s\n", windows.UTF16PtrToString(q.ServiceInstanceName), addr) |
| |
| default: |
| t.Fatal(err) |
| } |
| } |
| } |