Fix a bug in lha read format.

The bug was it could not correctly extract the compressed data
which had just one repated pattern.

diff --git a/libarchive/archive_read_support_format_lha.c b/libarchive/archive_read_support_format_lha.c
index 3c565c0015bdb8f41d35b578dc878970929d1f9d..66fd927cc3bd259192549e6a65ff7336fe05c2cf 100644 (file)
--- a/libarchive/archive_read_support_format_lha.c
+++ b/libarchive/archive_read_support_format_lha.c
@@ -2743,7 +2743,7 @@ lzh_decode_huffman(struct huffman *hf, unsigned rbits)
         * If it fails, search a huffman tree for.
         */
        c = hf->tbl[rbits >> hf->shift_bits];
-       if (c < hf->len_avail)
+       if (c < hf->len_avail || hf->len_avail == 0)
                return (c);
        /* This bit pattern needs to be found out at a huffman tree. */
        return (lzh_decode_huffman_tree(hf, rbits, c));