posix/socket: allow binding with sockaddr

posix/socket.cpp

@@ -134,15 +134,26 @@ socket::operator= (socket &&rhs) noexcept
 
 ///////////////////////////////////////////////////////////////////////////////
 void
+socket::bind (sockaddr const &addr)
+{
+    auto const size = addr.sa_family == AF_INET  ? sizeof (sockaddr_in )
+                    : addr.sa_family == AF_INET6 ? sizeof (sockaddr_in6)
+                    : throw std::runtime_error ("Unhandled sockaddr type");
+
+    cruft::posix::error::try_call (
+        ::bind,
+        native (),
+        &addr,
+        size
+    );
+}
+
+
+//-----------------------------------------------------------------------------
+void
 socket::bind (sockaddr_in const &addr)
 {
-    cruft::posix::error::try_code (
-        ::bind (
-            native (),
-            reinterpret_cast<sockaddr const*> (&addr),
-            sizeof (addr)
-        )
-    );
+    return bind (reinterpret_cast<sockaddr const&> (addr));
 }
 
 

posix/socket.hpp

@@ -44,6 +44,7 @@ namespace cruft::posix {
          // because windows...
          ~socket ();
 
+         void bind (::sockaddr const&);
          void bind (::sockaddr_in const&);
 
          void connect (::sockaddr_in const&);