better TCP socket debug logging (esp for IPv6)

git-svn-id: https://xpra.org/svn/Xpra/trunk@15653 3bb7dfac-3a0b-4e04-842a-767bc560f471

src/xpra/net/bytestreams.py

@@ -142,8 +142,10 @@ def untilConcludes(is_active_cb, f, *a, **kw):
 
 def pretty_socket(s):
     try:
-        assert len(s)==2
-        return "%s:%s" % (s[0], s[1])
+        if len(s)==2:
+            return "%s:%s" % (s[0], s[1])
+        assert len(s)==4
+        return ", ".join(str(x) for x in s)
     except:
         return str(s)
 

src/xpra/scripts/server.py

@@ -434,6 +434,7 @@ def setup_tcp_socket(host, iport, socktype="TCP"):
     try:
         tcp_socket = create_tcp_socket(host, iport)
     except Exception as e:
+        log("create_tcp_socket%s", (host, iport), exc_info=True)
         raise InitException("failed to setup %s socket on %s:%s %s" % (socktype, host, iport, e))
     def cleanup_tcp_socket():
         log.info("closing %s socket %s:%s", socktype, host, iport)