addrinfo free'ing

[Joshua Rogers]

Hi,

When using getaddrinfo(), memory is allocated which later needs to be
freed using freeaddrinfo().

From the manual:

   int getaddrinfo(const char *node, const char *service,
                   const struct addrinfo *hints,
                   struct addrinfo **res);

   void freeaddrinfo(struct addrinfo *res);


   The freeaddrinfo() function frees the memory that was allocated

for the dynamically allocated linked list res.

[versat]

Related ticket as far as i see: https://trac.cppcheck.net/ticket/6994