From 8cacc96bf034ac40bb702651c939235fe19df824 Mon Sep 17 00:00:00 2001
From: Timo Teras <timo.teras@iki.fi>
Date: Wed, 29 Jul 2009 19:06:10 +0300
Subject: tar: don't call digest finalization twice

otherwise bad things happens. avoid this be checking end of
stream at the beginning of read.
---
 src/archive.c | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'src/archive.c')

diff --git a/src/archive.c b/src/archive.c
index 4005bf1..68ec287 100644
--- a/src/archive.c
+++ b/src/archive.c
@@ -90,6 +90,9 @@ static ssize_t tar_entry_read(void *stream, void *ptr, size_t size)
 
 	if (size > teis->bytes_left)
 		size = teis->bytes_left;
+        if (size == 0)
+                return 0;
+
 	r = teis->tar_is->read(teis->tar_is, ptr, size);
 	if (r < 0)
 		return r;
-- 
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