rpc: serverclient: Add option to suppress errors on EOF

The protocol may not use an explicit API to close the connection and
just close the socket instead. Add option to suppress errors in such
case.

src/rpc/virnetserverclient.c

@@ -1637,3 +1637,16 @@ virNetServerClientGetInfo(virNetServerClientPtr client,
     virObjectUnlock(client);
     return ret;
 }
+
+
+/**
+ * virNetServerClientSetQuietEOF:
+ *
+ * Don't report errors for protocols that close connection by hangup of the
+ * socket rather than calling an API to close it.
+ */
+void
+virNetServerClientSetQuietEOF(virNetServerClientPtr client)
+{
+    virNetSocketSetQuietEOF(client->sock);
+}

src/rpc/virnetserverclient.h

@@ -152,4 +152,6 @@ int virNetServerClientGetInfo(virNetServerClientPtr client,
                               bool *readonly, char **sock_addr,
                               virIdentityPtr *identity);
 
+void virNetServerClientSetQuietEOF(virNetServerClientPtr client);
+
 #endif /* __VIR_NET_SERVER_CLIENT_H__ */