From: Michihiro NAKAJIMA <ggcueroad@gmail.com>
Date: Mon, 27 Feb 2012 09:04:09 +0000 (+0900)
Subject: Fix the error which Clang Static Analyzer says "Division by zero".
X-Git-Tag: v3.0.4~2^2~42
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3c856771e2aa8633d8ce664633c4bf74f0377c8b;p=thirdparty%2Flibarchive.git

Fix the error which Clang Static Analyzer says "Division by zero".
---

diff --git a/libarchive/archive_write_add_filter_compress.c b/libarchive/archive_write_add_filter_compress.c
index 84c6db23c..4923316f5 100644
--- a/libarchive/archive_write_add_filter_compress.c
+++ b/libarchive/archive_write_add_filter_compress.c
@@ -396,7 +396,7 @@ archive_compressor_compress_write(struct archive_write_filter *f,
 
 		state->checkpoint = state->in_count + CHECK_GAP;
 
-		if (state->in_count <= 0x007fffff)
+		if (state->in_count <= 0x007fffff && state->out_count != 0)
 			ratio = (int)(state->in_count * 256 / state->out_count);
 		else if ((ratio = (int)(state->out_count / 256)) == 0)
 			ratio = 0x7fffffff;