From bd07fbb1d559d16caae22ae44e78d02b2cc3595e Mon Sep 17 00:00:00 2001
From: Emmanuel Nicolet <emmanuel.nicolet@gmail.com>
Date: Thu, 26 Dec 2019 21:02:37 +0100
Subject: tar: fix memory write error

Clear the last byte of the allocated buffer.
---
 toys/posix/tar.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'toys')

diff --git a/toys/posix/tar.c b/toys/posix/tar.c
index 1e662589..0327c894 100644
--- a/toys/posix/tar.c
+++ b/toys/posix/tar.c
@@ -169,7 +169,7 @@ static void alloread(void *buf, int len)
   free(*b);
   *b = xmalloc(len+1);
   xreadall(TT.fd, *b, len);
-  b[len] = 0;
+  ((char*)(*b))[len] = 0;
 }
 
 // callback from dirtree to create archive
-- 
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