X-Git-Url: https://git.verplant.org/?a=blobdiff_plain;f=src%2Fmadwifi.c;h=d0b2f83ea1afa0e429f3fe2646ddbfa2739b7d5d;hb=40aabf444e124f40603021821e98bcc40c4aaa0e;hp=bb33b15d2c7818fe6cd3b623fd3fece4d1f47814;hpb=6d64200e006f22ce3f1619251004fbe6cd674b91;p=collectd.git

diff --git a/src/madwifi.c b/src/madwifi.c
index bb33b15d..d0b2f83e 100644
--- a/src/madwifi.c
+++ b/src/madwifi.c
@@ -821,15 +821,16 @@ check_devname (const char *dev)
 
 	if (dev[0] == '.')
 		return 0;
-	
+
 	ssnprintf (buf, sizeof (buf), "/sys/class/net/%s/device/driver", dev);
-	buf[sizeof (buf) - 1] = 0;
+	buf[sizeof (buf) - 1] = '\0';
 
-	memset (buf2, 0, sizeof (buf2));
 	i = readlink (buf, buf2, sizeof (buf2) - 1);
 	if (i < 0)
 		return 0;
 
+	buf2[i] = '\0';
+
 	if (strstr (buf2, "/drivers/ath_") == NULL)
 		return 0;
 	return 1;