From 291d508728eeebbaf2bbcba38af0ee1d30700c7c Mon Sep 17 00:00:00 2001
From: Jeremy Norris <jeremy.norris@service-now.com>
Date: Tue, 12 Jul 2016 09:29:58 -0700
Subject: [PATCH] Fix off by one bug when more data is read than buflen

---
 src/sigar_util.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/sigar_util.c b/src/sigar_util.c
index 3c668fc63..325b65ada 100644
--- a/src/sigar_util.c
+++ b/src/sigar_util.c
@@ -838,7 +838,7 @@ int sigar_file2str(const char *fname, char *buffer, int buflen)
         return ENOENT;
     }
 
-    if ((len = read(fd, buffer, buflen)) < 0) {
+    if ((len = read(fd, buffer, buflen - 1)) < 0) {
         status = errno;
     }
     else {