libsystemd-dhcp: DNS name option must be a multiple of 4 bytes

2014-01-31 12:04:51 +01:00
parent 29804cc1e0
commit 74e22380ed
1 changed files with 1 additions and 1 deletions
@@ -760,7 +760,7 @@ static int client_parse_offer(uint8_t code, uint8_t len, const uint8_t *option,
                break;

        case DHCP_OPTION_DOMAIN_NAME_SERVER:
-                if (len >= 4) {
+                if (len && !(len % 4)) {
                        unsigned i;

                        lease->dns_size = len / 4;