1 files changed, 8 insertions, 0 deletions
diff --git a/src/pkg/compress/bzip2/bit_reader.go b/src/pkg/compress/bzip2/bit_reader.go
index ab1d60651..32d1036ae 100644
--- a/src/pkg/compress/bzip2/bit_reader.go
+++ b/src/pkg/compress/bzip2/bit_reader.go
@@ -77,6 +77,14 @@ func (br *bitReader) ReadBit() bool {
 	return n != 0
 }
 
+func (br *bitReader) TryReadBit() (bit byte, ok bool) {
+	if br.bits > 0 {
+		br.bits--
+		return byte(br.n>>br.bits) & 1, true
+	}
+	return 0, false
+}
+
 func (br *bitReader) Err() error {
 	return br.err
 }