From 219c3121638214be8f1d4750510729a058fe2c8e Mon Sep 17 00:00:00 2001
From: cinap_lenrek <cinap_lenrek@felloff.net>
Date: Mon, 28 Apr 2014 02:32:06 +0200
Subject: [PATCH] libip: use snprint() in myetheraddr() to prevent accidents

---
 sys/src/libip/myetheraddr.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sys/src/libip/myetheraddr.c b/sys/src/libip/myetheraddr.c
index 76f7cff54..7172e5880 100644
--- a/sys/src/libip/myetheraddr.c
+++ b/sys/src/libip/myetheraddr.c
@@ -9,9 +9,9 @@ myetheraddr(uchar *to, char *dev)
 	char buf[256];
 
 	if(*dev == '/' || *dev == '#')
-		sprint(buf, "%s/addr", dev);
+		snprint(buf, sizeof buf, "%s/addr", dev);
 	else
-		sprint(buf, "/net/%s/addr", dev);
+		snprint(buf, sizeof buf, "/net/%s/addr", dev);
 
 	fd = open(buf, OREAD);
 	if(fd < 0)