1 files changed, 4 insertions, 23 deletions
diff --git a/libgo/go/archive/tar/common.go b/libgo/go/archive/tar/common.go
index 2a1e4321826..d2ae66d554d 100644
--- a/libgo/go/archive/tar/common.go
+++ b/libgo/go/archive/tar/common.go
@@ -13,7 +13,6 @@
 package tar
 
 import (
-	"bytes"
 	"errors"
 	"fmt"
 	"os"
@@ -21,6 +20,10 @@ import (
 	"time"
 )
 
+// BUG: Use of the Uid and Gid fields in Header could overflow on 32-bit
+// architectures. If a large value is encountered when decoding, the result
+// stored in Header will be the truncated version.
+
 // Header type flags.
 const (
 	TypeReg           = '0'    // regular file
@@ -271,28 +274,6 @@ func FileInfoHeader(fi os.FileInfo, link string) (*Header, error) {
 	return h, nil
 }
 
-func isASCII(s string) bool {
-	for _, c := range s {
-		if c >= 0x80 {
-			return false
-		}
-	}
-	return true
-}
-
-func toASCII(s string) string {
-	if isASCII(s) {
-		return s
-	}
-	var buf bytes.Buffer
-	for _, c := range s {
-		if c < 0x80 {
-			buf.WriteByte(byte(c))
-		}
-	}
-	return buf.String()
-}
-
 // isHeaderOnlyType checks if the given type flag is of the type that has no
 // data section even if a size is specified.
 func isHeaderOnlyType(flag byte) bool {