getaf
if ((af = getaf(env)) == -1 || af != AF_INET6) {
af = getaf(env);
if ((af = getaf(env)) == -1)
int getaf(prop_dictionary_t);
if ((af = getaf(env)) == -1) {
if ((af = getaf(env)) == -1)
if ((af = getaf(env)) == -1)
if ((af = getaf(env)) == -1)
if ((af = getaf(env)) == -1)