From: Jens Axboe <axboe@fb.com>
Date: Mon, 14 Apr 2014 16:13:46 +0000 (-0600)
Subject: make_filename: another off-by-one buffer issue
X-Git-Tag: fio-2.1.9~43
X-Git-Url: https://git.kernel.dk/?p=fio.git;a=commitdiff_plain;h=b400a20e5d688f3498b2e3e9ce5567d3496dd746;ds=sidebyside

make_filename: another off-by-one buffer issue

Signed-off-by: Jens Axboe <axboe@fb.com>
---

diff --git a/init.c b/init.c
index 75b997ef..21779c7b 100644
--- a/init.c
+++ b/init.c
@@ -942,7 +942,7 @@ static char *make_filename(char *buf, struct thread_options *o,
 {
 	struct fpre_keyword *f;
 	char copy[PATH_MAX];
-	size_t dst_left = PATH_MAX;
+	size_t dst_left = PATH_MAX - 1;
 
 	if (!o->filename_format || !strlen(o->filename_format)) {
 		sprintf(buf, "%s.%d.%d", jobname, jobnum, filenum);