Change NetworkInfo to use SocketAddress.

PiperOrigin-RevId: 850164819

internal/platform/implementation/windows/socket_address.h

@@ -62,9 +62,9 @@ class SocketAddress {
   int family() const { return address_.ss_family; }
 
   // `Returns port in host byte order.
-  int port() const;
+  uint16_t port() const;
   // `port` is in host byte order.
-  bool set_port(int port);
+  bool set_port(uint16_t port);
 
   std::string ToString() const;
 
@@ -72,6 +72,10 @@ class SocketAddress {
   // Returns false if the address is not IPv6 or is not link local.
   bool IsV6LinkLocal() const;
 
+  // Returns true if the address is a link local IPv4 address, ie. 169.254.X.X.
+  // Returns false if the address is not IPv4 or is not link local.
+  bool IsV4LinkLocal() const;
+
   // Sets the scope id of the address.
   // Returns false if the address is not IPv6.
   bool SetScopeId(uint32_t scope_id);
@@ -99,6 +103,11 @@ class SocketAddress {
     return reinterpret_cast<const sockaddr_in6*>(&address_);
   }
 
+  // Pack this SocketAddress into a ServiceAddress.
+  // If `port` is non-zero, override the port from this SocketAddress with
+  // `port` in the ServiceAddress.
+  ServiceAddress ToServiceAddress(uint16_t port = 0) const;
+
  private:
   sockaddr_storage address_;
 };