From cdfc719c2e8b20c0841b8dcb7af77e2c24c5610a Mon Sep 17 00:00:00 2001
From: Jaakko Heinonen <jh@FreeBSD.org>
Date: Mon, 6 Dec 2010 09:18:11 +0000
Subject: [PATCH] Don't write the terminating NUL past end of buffer.

PR:		bin/152345
Submitted by:	Mateusz Guzik
---
 usr.bin/truss/syscalls.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/usr.bin/truss/syscalls.c b/usr.bin/truss/syscalls.c
index 7ef8e1981728..f19553d21674 100644
--- a/usr.bin/truss/syscalls.c
+++ b/usr.bin/truss/syscalls.c
@@ -518,7 +518,7 @@ get_string(pid_t pid, void *offset, int max)
 			buf = realloc(buf, totalsize);
 			size = BLOCKSIZE;
 		} else {
-			buf[totalsize] = '\0';
+			buf[totalsize - 1] = '\0';
 			return (buf);
 		}
 	}