From: Jeremy Kerr <jk@ozlabs.org>
Date: Fri, 18 Oct 2013 03:31:57 +0000 (+0800)
Subject: discover/network: Ensure dns config buffer contains a trailling nul
X-Git-Tag: v1.0.0~377
X-Git-Url: http://git.ozlabs.org/?p=petitboot;a=commitdiff_plain;h=573a345f2e6b325d80e4040420bee0947e40ce33

discover/network: Ensure dns config buffer contains a trailling nul

Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
---

diff --git a/discover/network.c b/discover/network.c
index 9aa9752..edb7358 100644
--- a/discover/network.c
+++ b/discover/network.c
@@ -480,9 +480,10 @@ static void network_init_dns(struct network *network)
 		}
 
 		dns_conf_len = strlen(dns_conf);
-		buf = talloc_realloc(network, buf, char, len + dns_conf_len);
+		buf = talloc_realloc(network, buf, char, len + dns_conf_len + 1);
 		memcpy(buf + len, dns_conf, dns_conf_len);
 		len += dns_conf_len;
+		buf[len - 1] = '\0';
 		modified = true;
 
 		talloc_free(dns_conf);