Hello,

According to http://pubs.opengroup.org/onlinepubs/9699919799/functions/freeaddrinfo.html:
"The nodename and servname arguments are either null pointers or pointers
 to null-terminated strings. One or both of these two arguments shall be supplied 
by the application as a non-null pointer. "
"[EAI_NONAME]
Neither nodename nor servname were supplied. At least one of these shall be supplied."

getaddrinfo() currently accepts both nodename and servname being null.
Following patch fixes the problem: