7.0 refactor

src/sntp.h

@@ -0,0 +1,8 @@
+#pragma once
+
+#include "net.h"
+
+struct mg_connection *mg_sntp_connect(struct mg_mgr *mgr, const char *url,
+                                      mg_event_handler_t fn, void *fn_data);
+void mg_sntp_send(struct mg_connection *c, unsigned long utc);
+int mg_sntp_parse(const unsigned char *buf, size_t len, struct timeval *tv);