- printf("Address empty\n");
- /* Theres no address here, default to ipv6 bind to all */
- ((sockaddr_in6*)server)->sin6_family = AF_INET6;
- memset(&(((sockaddr_in6*)server)->sin6_addr), 0, sizeof(in6_addr));
- ((sockaddr_in6*)server)->sin6_port = htons(port);
- size = sizeof(sockaddr_in6);
+ if (port == -1)
+ {
+ /* Port -1: Means UDP IPV4 port binding - Special case
+ * used by DNS engine.
+ */
+ ((sockaddr_in*)servaddr)->sin_family = AF_INET;
+ ((sockaddr_in*)servaddr)->sin_addr.s_addr = htonl(INADDR_ANY);
+ ((sockaddr_in*)servaddr)->sin_port = 0;
+ size = sizeof(sockaddr_in);
+ }
+ else
+ {
+ /* Theres no address here, default to ipv6 bind to all */
+ ((sockaddr_in6*)servaddr)->sin6_family = AF_INET6;
+ memset(&(((sockaddr_in6*)servaddr)->sin6_addr), 0, sizeof(in6_addr));
+ ((sockaddr_in6*)servaddr)->sin6_port = htons(port);
+ size = sizeof(sockaddr_in6);
+ }