refactor basic

WIP

clibs/win32_join_multicast.h

@@ -0,0 +1,22 @@
+#ifndef WIN32_JOIN_MULTICAST_H
+#define WIN32_JOIN_MULTICAST_H
+
+#include <stdint.h>
+#include <winsock2.h>
+
+#ifdef __cplusplus
+extern "C" {
+
+#endif
+
+int join_multicast_group(SOCKET sock, const char *group);
+
+int socket_sendto(SOCKET fd, const uint8_t *data, int len, const char *host, unsigned short port);
+
+int leave_multicast_group(SOCKET sock, const char *group);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // WIN32_JOIN_MULTICAST_H