libei: add a hook to configure the client name

Better than the current "myclient". Lacks safety and whatnot so long-term it
will have to get replaced with something else.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>

src/libei-private.h

@@ -50,6 +50,7 @@ struct ei {
 	enum ei_state state;
 	struct list event_queue;
 	struct list devices;
+	char *name;
 };
 
 enum ei_device_state {

src/libei.c

@@ -116,6 +116,7 @@ ei_destroy(struct ei *ei)
 	if (ei->backend.destroy)
 		ei->backend.destroy(ei);
 	sink_unref(ei->sink);
+	free(ei->name);
 }
 
 OBJECT_DECLARE_INIT(ei);
@@ -215,8 +216,13 @@ connection_send_connect(struct ei *ei)
 	if (ei->state == EI_STATE_DISCONNECTED)
 		return 0;
 
-	const char buf[] = "connect myclient\n"; /* FIXME */
-	return min(0, xwrite(source_get_fd(ei->source), buf, sizeof(buf)));
+	char buf[128];
+
+	if (!xsnprintf(buf, sizeof(buf), "connect %s\n",
+		       ei->name ? ei->name : "unnamed"))
+		return -ENOMEM;
+
+	return min(0, xwrite(source_get_fd(ei->source), buf, strlen(buf)));
 }
 
 static int
@@ -555,3 +561,10 @@ ei_set_connection(struct ei *ei, int fd)
 
 	return 0;
 }
+
+_public_ void
+ei_configure_name(struct ei *ei, const char *name)
+{
+	free(ei->name);
+	ei->name = xstrdup(name);
+}

src/libei.h

@@ -101,6 +101,13 @@ enum ei_event_type {
 struct ei *
 ei_new(void);
 
+/**
+ * Set the name for this client. This is a suggestion to the
+ * server only and may not be honored.
+ */
+void
+ei_configure_name(struct ei * ei, const char *name);
+
 struct ei *
 ei_socket_new_context(void *user_data);
 

tools/ei-socket-client.c

@@ -41,6 +41,8 @@ int main(int argc, char **argv)
 	struct ei *ei = ei_socket_new_context(NULL);
 	assert(ei);
 
+	ei_configure_name(ei, "ei-socket-client-demo");
+
 	/* This should be handled by libei */
 	signal(SIGPIPE, SIG_IGN);