From e08543094231b9b209a5f0a48e87520a3083a011 Mon Sep 17 00:00:00 2001
From: Ngie Cooper <yanegomi@gmail.com>
Date: Sat, 10 Dec 2016 16:22:10 -0800
Subject: [PATCH] Don't overrun `tmpdir` buffer with sprintf

If progname is sufficiently large enough, it would overflow the `tmpdir`
buffer, causing an illegal memory access

Reported by:	Coverity
CID:	1331594
---
 tar/test/main.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tar/test/main.c b/tar/test/main.c
index 6077af5f0..6bc355783 100644
--- a/tar/test/main.c
+++ b/tar/test/main.c
@@ -2958,8 +2958,8 @@ main(int argc, char **argv)
 		strftime(tmpdir_timestamp, sizeof(tmpdir_timestamp),
 		    "%Y-%m-%dT%H.%M.%S",
 		    localtime(&now));
-		sprintf(tmpdir, "%s/%s.%s-%03d", tmp, progname,
-		    tmpdir_timestamp, i);
+		snprintf(tmpdir, sizeof(tmpdir), "%s/%s.%s-%03d", tmp,
+		    progname, tmpdir_timestamp, i);
 		if (assertMakeDir(tmpdir,0755))
 			break;
 		if (i >= 999) {
-- 
2.47.2