updated vendored archive/tar to go1.16.5

result of: `hack/vendor.sh archive/tar`

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
(cherry picked from commit 3ed804aeca)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

vendor/archive/tar/common.go

@@ -13,8 +13,8 @@ package tar
 import (
 	"errors"
 	"fmt"
+	"io/fs"
 	"math"
-	"os"
 	"path"
 	"reflect"
 	"strconv"
@@ -525,12 +525,12 @@ func (h Header) allowedFormats() (format Format, paxHdrs map[string]string, err
 	return format, paxHdrs, err
 }
 
-// FileInfo returns an os.FileInfo for the Header.
-func (h *Header) FileInfo() os.FileInfo {
+// FileInfo returns an fs.FileInfo for the Header.
+func (h *Header) FileInfo() fs.FileInfo {
 	return headerFileInfo{h}
 }
 
-// headerFileInfo implements os.FileInfo.
+// headerFileInfo implements fs.FileInfo.
 type headerFileInfo struct {
 	h *Header
 }
@@ -549,57 +549,57 @@ func (fi headerFileInfo) Name() string {
 }
 
 // Mode returns the permission and mode bits for the headerFileInfo.
-func (fi headerFileInfo) Mode() (mode os.FileMode) {
+func (fi headerFileInfo) Mode() (mode fs.FileMode) {
 	// Set file permission bits.
-	mode = os.FileMode(fi.h.Mode).Perm()
+	mode = fs.FileMode(fi.h.Mode).Perm()
 
 	// Set setuid, setgid and sticky bits.
 	if fi.h.Mode&c_ISUID != 0 {
-		mode |= os.ModeSetuid
+		mode |= fs.ModeSetuid
 	}
 	if fi.h.Mode&c_ISGID != 0 {
-		mode |= os.ModeSetgid
+		mode |= fs.ModeSetgid
 	}
 	if fi.h.Mode&c_ISVTX != 0 {
-		mode |= os.ModeSticky
+		mode |= fs.ModeSticky
 	}
 
 	// Set file mode bits; clear perm, setuid, setgid, and sticky bits.
-	switch m := os.FileMode(fi.h.Mode) &^ 07777; m {
+	switch m := fs.FileMode(fi.h.Mode) &^ 07777; m {
 	case c_ISDIR:
-		mode |= os.ModeDir
+		mode |= fs.ModeDir
 	case c_ISFIFO:
-		mode |= os.ModeNamedPipe
+		mode |= fs.ModeNamedPipe
 	case c_ISLNK:
-		mode |= os.ModeSymlink
+		mode |= fs.ModeSymlink
 	case c_ISBLK:
-		mode |= os.ModeDevice
+		mode |= fs.ModeDevice
 	case c_ISCHR:
-		mode |= os.ModeDevice
-		mode |= os.ModeCharDevice
+		mode |= fs.ModeDevice
+		mode |= fs.ModeCharDevice
 	case c_ISSOCK:
-		mode |= os.ModeSocket
+		mode |= fs.ModeSocket
 	}
 
 	switch fi.h.Typeflag {
 	case TypeSymlink:
-		mode |= os.ModeSymlink
+		mode |= fs.ModeSymlink
 	case TypeChar:
-		mode |= os.ModeDevice
-		mode |= os.ModeCharDevice
+		mode |= fs.ModeDevice
+		mode |= fs.ModeCharDevice
 	case TypeBlock:
-		mode |= os.ModeDevice
+		mode |= fs.ModeDevice
 	case TypeDir:
-		mode |= os.ModeDir
+		mode |= fs.ModeDir
 	case TypeFifo:
-		mode |= os.ModeNamedPipe
+		mode |= fs.ModeNamedPipe
 	}
 
 	return mode
 }
 
 // sysStat, if non-nil, populates h from system-dependent fields of fi.
-var sysStat func(fi os.FileInfo, h *Header) error
+var sysStat func(fi fs.FileInfo, h *Header) error
 
 const (
 	// Mode constants from the USTAR spec:
@@ -623,10 +623,10 @@ const (
 // If fi describes a symlink, FileInfoHeader records link as the link target.
 // If fi describes a directory, a slash is appended to the name.
 //
-// Since os.FileInfo's Name method only returns the base name of
+// Since fs.FileInfo's Name method only returns the base name of
 // the file it describes, it may be necessary to modify Header.Name
 // to provide the full path name of the file.
-func FileInfoHeader(fi os.FileInfo, link string) (*Header, error) {
+func FileInfoHeader(fi fs.FileInfo, link string) (*Header, error) {
 	if fi == nil {
 		return nil, errors.New("archive/tar: FileInfo is nil")
 	}
@@ -643,29 +643,29 @@ func FileInfoHeader(fi os.FileInfo, link string) (*Header, error) {
 	case fi.IsDir():
 		h.Typeflag = TypeDir
 		h.Name += "/"
-	case fm&os.ModeSymlink != 0:
+	case fm&fs.ModeSymlink != 0:
 		h.Typeflag = TypeSymlink
 		h.Linkname = link
-	case fm&os.ModeDevice != 0:
-		if fm&os.ModeCharDevice != 0 {
+	case fm&fs.ModeDevice != 0:
+		if fm&fs.ModeCharDevice != 0 {
 			h.Typeflag = TypeChar
 		} else {
 			h.Typeflag = TypeBlock
 		}
-	case fm&os.ModeNamedPipe != 0:
+	case fm&fs.ModeNamedPipe != 0:
 		h.Typeflag = TypeFifo
-	case fm&os.ModeSocket != 0:
+	case fm&fs.ModeSocket != 0:
 		return nil, fmt.Errorf("archive/tar: sockets not supported")
 	default:
 		return nil, fmt.Errorf("archive/tar: unknown file mode %v", fm)
 	}
-	if fm&os.ModeSetuid != 0 {
+	if fm&fs.ModeSetuid != 0 {
 		h.Mode |= c_ISUID
 	}
-	if fm&os.ModeSetgid != 0 {
+	if fm&fs.ModeSetgid != 0 {
 		h.Mode |= c_ISGID
 	}
-	if fm&os.ModeSticky != 0 {
+	if fm&fs.ModeSticky != 0 {
 		h.Mode |= c_ISVTX
 	}
 	// If possible, populate additional fields from OS-specific

vendor/archive/tar/reader.go

@@ -7,7 +7,6 @@ package tar
 import (
 	"bytes"
 	"io"
-	"io/ioutil"
 	"strconv"
 	"strings"
 	"time"
@@ -104,7 +103,7 @@ func (tr *Reader) next() (*Header, error) {
 			continue // This is a meta header affecting the next header
 		case TypeGNULongName, TypeGNULongLink:
 			format.mayOnlyBe(FormatGNU)
-			realname, err := ioutil.ReadAll(tr)
+			realname, err := io.ReadAll(tr)
 			if err != nil {
 				return nil, err
 			}
@@ -294,7 +293,7 @@ func mergePAX(hdr *Header, paxHdrs map[string]string) (err error) {
 // parsePAX parses PAX headers.
 // If an extended header (type 'x') is invalid, ErrHeader is returned
 func parsePAX(r io.Reader) (map[string]string, error) {
-	buf, err := ioutil.ReadAll(r)
+	buf, err := io.ReadAll(r)
 	if err != nil {
 		return nil, err
 	}
@@ -433,7 +432,7 @@ func (tr *Reader) readHeader() (*Header, *block, error) {
 			// files generated by a pre-Go1.8 toolchain. If the generated file
 			// happened to have a prefix field that parses as valid
 			// atime and ctime fields (e.g., when they are valid octal strings),
-			// then it is impossible to distinguish between an valid GNU file
+			// then it is impossible to distinguish between a valid GNU file
 			// and an invalid pre-Go1.8 file.
 			//
 			// See https://golang.org/issues/12594
@@ -850,7 +849,7 @@ func discard(r io.Reader, n int64) error {
 		}
 	}
 
-	copySkipped, err := io.CopyN(ioutil.Discard, r, n-seekSkipped)
+	copySkipped, err := io.CopyN(io.Discard, r, n-seekSkipped)
 	if err == io.EOF && seekSkipped+copySkipped < n {
 		err = io.ErrUnexpectedEOF
 	}

vendor/archive/tar/reader_test.go

@@ -10,7 +10,6 @@ import (
 	"errors"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"math"
 	"os"
 	"path"
@@ -773,7 +772,7 @@ func TestReadTruncation(t *testing.T) {
 		"testdata/pax-path-hdr.tar",
 		"testdata/sparse-formats.tar",
 	} {
-		buf, err := ioutil.ReadFile(p)
+		buf, err := os.ReadFile(p)
 		if err != nil {
 			t.Fatalf("unexpected error: %v", err)
 		}
@@ -865,7 +864,7 @@ func TestReadTruncation(t *testing.T) {
 				}
 				cnt++
 				if s2 == "manual" {
-					if _, err = tr.writeTo(ioutil.Discard); err != nil {
+					if _, err = tr.writeTo(io.Discard); err != nil {
 						break
 					}
 				}

vendor/archive/tar/stat_unix.go

@@ -7,7 +7,7 @@
 package tar
 
 import (
-	"os"
+	"io/fs"
 	"runtime"
 	"syscall"
 )
@@ -16,7 +16,7 @@ func init() {
 	sysStat = statUnix
 }
 
-func statUnix(fi os.FileInfo, h *Header) error {
+func statUnix(fi fs.FileInfo, h *Header) error {
 	sys, ok := fi.Sys().(*syscall.Stat_t)
 	if !ok {
 		return nil
@@ -46,7 +46,7 @@ func statUnix(fi os.FileInfo, h *Header) error {
 			minor := uint32((dev & 0x00000000000000ff) >> 0)
 			minor |= uint32((dev & 0x00000ffffff00000) >> 12)
 			h.Devmajor, h.Devminor = int64(major), int64(minor)
-		case "darwin":
+		case "darwin", "ios":
 			// Copied from golang.org/x/sys/unix/dev_darwin.go.
 			major := uint32((dev >> 24) & 0xff)
 			minor := uint32(dev & 0xffffff)

vendor/archive/tar/strconv.go

@@ -28,7 +28,7 @@ func isASCII(s string) bool {
 }
 
 // toASCII converts the input to an ASCII C-style string.
-// This a best effort conversion, so invalid characters are dropped.
+// This is a best effort conversion, so invalid characters are dropped.
 func toASCII(s string) string {
 	if isASCII(s) {
 		return s
@@ -265,8 +265,27 @@ func parsePAXRecord(s string) (k, v, r string, err error) {
 		return "", "", s, ErrHeader
 	}
 
+	afterSpace := int64(sp + 1)
+	beforeLastNewLine := n - 1
+	// In some cases, "length" was perhaps padded/malformed, and
+	// trying to index past where the space supposedly is goes past
+	// the end of the actual record.
+	// For example:
+	//    "0000000000000000000000000000000030 mtime=1432668921.098285006\n30 ctime=2147483649.15163319"
+	//                                  ^     ^
+	//                                  |     |
+	//                                  |  afterSpace=35
+	//                                  |
+	//                          beforeLastNewLine=29
+	// yet indexOf(firstSpace) MUST BE before endOfRecord.
+	//
+	// See https://golang.org/issues/40196.
+	if afterSpace >= beforeLastNewLine {
+		return "", "", s, ErrHeader
+	}
+
 	// Extract everything between the space and the final newline.
-	rec, nl, rem := s[sp+1:n-1], s[n-1:n], s[n:]
+	rec, nl, rem := s[afterSpace:beforeLastNewLine], s[beforeLastNewLine:n], s[n:]
 	if nl != "\n" {
 		return "", "", s, ErrHeader
 	}

vendor/archive/tar/strconv_test.go

@@ -368,6 +368,13 @@ func TestParsePAXRecord(t *testing.T) {
 		{"16 longkeyname=hahaha\n", "16 longkeyname=hahaha\n", "", "", false},
 		{"3 somelongkey=\n", "3 somelongkey=\n", "", "", false},
 		{"50 tooshort=\n", "50 tooshort=\n", "", "", false},
+		{"0000000000000000000000000000000030 mtime=1432668921.098285006\n30 ctime=2147483649.15163319", "0000000000000000000000000000000030 mtime=1432668921.098285006\n30 ctime=2147483649.15163319", "mtime", "1432668921.098285006", false},
+		{"06 k=v\n", "06 k=v\n", "", "", false},
+		{"00006 k=v\n", "00006 k=v\n", "", "", false},
+		{"000006 k=v\n", "000006 k=v\n", "", "", false},
+		{"000000 k=v\n", "000000 k=v\n", "", "", false},
+		{"0 k=v\n", "0 k=v\n", "", "", false},
+		{"+0000005 x=\n", "+0000005 x=\n", "", "", false},
 	}
 
 	for _, v := range vectors {

vendor/archive/tar/tar_test.go

@@ -10,7 +10,7 @@ import (
 	"fmt"
 	"internal/testenv"
 	"io"
-	"io/ioutil"
+	"io/fs"
 	"math"
 	"os"
 	"path"
@@ -262,7 +262,7 @@ func TestFileInfoHeaderDir(t *testing.T) {
 func TestFileInfoHeaderSymlink(t *testing.T) {
 	testenv.MustHaveSymlink(t)
 
-	tmpdir, err := ioutil.TempDir("", "TestFileInfoHeaderSymlink")
+	tmpdir, err := os.MkdirTemp("", "TestFileInfoHeaderSymlink")
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -327,7 +327,7 @@ func TestRoundTrip(t *testing.T) {
 	if !reflect.DeepEqual(rHdr, hdr) {
 		t.Errorf("Header mismatch.\n got %+v\nwant %+v", rHdr, hdr)
 	}
-	rData, err := ioutil.ReadAll(tr)
+	rData, err := io.ReadAll(tr)
 	if err != nil {
 		t.Fatalf("Read: %v", err)
 	}
@@ -338,7 +338,7 @@ func TestRoundTrip(t *testing.T) {
 
 type headerRoundTripTest struct {
 	h  *Header
-	fm os.FileMode
+	fm fs.FileMode
 }
 
 func TestHeaderRoundTrip(t *testing.T) {
@@ -361,7 +361,7 @@ func TestHeaderRoundTrip(t *testing.T) {
 			ModTime:  time.Unix(1360600852, 0),
 			Typeflag: TypeSymlink,
 		},
-		fm: 0777 | os.ModeSymlink,
+		fm: 0777 | fs.ModeSymlink,
 	}, {
 		// character device node.
 		h: &Header{
@@ -371,7 +371,7 @@ func TestHeaderRoundTrip(t *testing.T) {
 			ModTime:  time.Unix(1360578951, 0),
 			Typeflag: TypeChar,
 		},
-		fm: 0666 | os.ModeDevice | os.ModeCharDevice,
+		fm: 0666 | fs.ModeDevice | fs.ModeCharDevice,
 	}, {
 		// block device node.
 		h: &Header{
@@ -381,7 +381,7 @@ func TestHeaderRoundTrip(t *testing.T) {
 			ModTime:  time.Unix(1360578954, 0),
 			Typeflag: TypeBlock,
 		},
-		fm: 0660 | os.ModeDevice,
+		fm: 0660 | fs.ModeDevice,
 	}, {
 		// directory.
 		h: &Header{
@@ -391,7 +391,7 @@ func TestHeaderRoundTrip(t *testing.T) {
 			ModTime:  time.Unix(1360601116, 0),
 			Typeflag: TypeDir,
 		},
-		fm: 0755 | os.ModeDir,
+		fm: 0755 | fs.ModeDir,
 	}, {
 		// fifo node.
 		h: &Header{
@@ -401,7 +401,7 @@ func TestHeaderRoundTrip(t *testing.T) {
 			ModTime:  time.Unix(1360578949, 0),
 			Typeflag: TypeFifo,
 		},
-		fm: 0600 | os.ModeNamedPipe,
+		fm: 0600 | fs.ModeNamedPipe,
 	}, {
 		// setuid.
 		h: &Header{
@@ -411,7 +411,7 @@ func TestHeaderRoundTrip(t *testing.T) {
 			ModTime:  time.Unix(1355405093, 0),
 			Typeflag: TypeReg,
 		},
-		fm: 0755 | os.ModeSetuid,
+		fm: 0755 | fs.ModeSetuid,
 	}, {
 		// setguid.
 		h: &Header{
@@ -421,7 +421,7 @@ func TestHeaderRoundTrip(t *testing.T) {
 			ModTime:  time.Unix(1360602346, 0),
 			Typeflag: TypeReg,
 		},
-		fm: 0750 | os.ModeSetgid,
+		fm: 0750 | fs.ModeSetgid,
 	}, {
 		// sticky.
 		h: &Header{
@@ -431,7 +431,7 @@ func TestHeaderRoundTrip(t *testing.T) {
 			ModTime:  time.Unix(1360602540, 0),
 			Typeflag: TypeReg,
 		},
-		fm: 0600 | os.ModeSticky,
+		fm: 0600 | fs.ModeSticky,
 	}, {
 		// hard link.
 		h: &Header{
@@ -804,9 +804,9 @@ func Benchmark(b *testing.B) {
 			b.Run(v.label, func(b *testing.B) {
 				b.ReportAllocs()
 				for i := 0; i < b.N; i++ {
-					// Writing to ioutil.Discard because we want to
+					// Writing to io.Discard because we want to
 					// test purely the writer code and not bring in disk performance into this.
-					tw := NewWriter(ioutil.Discard)
+					tw := NewWriter(io.Discard)
 					for _, file := range v.files {
 						if err := tw.WriteHeader(file.hdr); err != nil {
 							b.Errorf("unexpected WriteHeader error: %v", err)
@@ -844,7 +844,7 @@ func Benchmark(b *testing.B) {
 					if _, err := tr.Next(); err != nil {
 						b.Errorf("unexpected Next error: %v", err)
 					}
-					if _, err := io.Copy(ioutil.Discard, tr); err != nil {
+					if _, err := io.Copy(io.Discard, tr); err != nil {
 						b.Errorf("unexpected Copy error : %v", err)
 					}
 				}

vendor/archive/tar/writer_test.go

@@ -9,7 +9,6 @@ import (
 	"encoding/hex"
 	"errors"
 	"io"
-	"io/ioutil"
 	"os"
 	"path"
 	"reflect"
@@ -520,7 +519,7 @@ func TestWriter(t *testing.T) {
 			}
 
 			if v.file != "" {
-				want, err := ioutil.ReadFile(v.file)
+				want, err := os.ReadFile(v.file)
 				if err != nil {
 					t.Fatalf("ReadFile() = %v, want nil", err)
 				}