From: Michihiro NAKAJIMA <ggcueroad@gmail.com>
Date: Thu, 3 Jul 2014 11:26:43 +0000 (+0900)
Subject: Fix a bug in lha read format.
X-Git-Tag: v3.1.900a~267
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=31272acaf4e37c6fdfbb587b69063520f661487c;p=thirdparty%2Flibarchive.git

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 3c565c001..66fd927cc 100644
--- 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));