Replace use of 'in_addr_t' with 'struct in_addr'

The 'in_addr_t' typedef is not present in Mingw64 headers.
Instead we can use the more portable 'struct in_addr' and
then access its 's_addr' field.
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>

src/util/virsocketaddr.c

@@ -235,10 +235,10 @@ virSocketAddrIsPrivate(const virSocketAddrPtr addr)
 bool
 virSocketAddrIsWildcard(const virSocketAddrPtr addr)
 {
-    in_addr_t tmp = INADDR_ANY;
+    struct in_addr tmp = { .s_addr = INADDR_ANY };
     switch (addr->data.stor.ss_family) {
     case AF_INET:
-        return memcmp(&addr->data.inet4.sin_addr.s_addr, &tmp,
+        return memcmp(&addr->data.inet4.sin_addr.s_addr, &tmp.s_addr,
                       sizeof(addr->data.inet4.sin_addr.s_addr)) == 0;
     case AF_INET6:
         return IN6_IS_ADDR_UNSPECIFIED(&addr->data.inet6.sin6_addr);