--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ctrl-client/osmo-ctrl-client.c	Sun Dec 17 08:43:13 2023 +0000
@@ -0,0 +1,86 @@
+/* Simple command-line client against the Osmocom CTRL interface */
+
+/* (C) 2018 by Harald Welte <laforge@gnumonks.org>
+ * All Rights Reserved.
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "simple_ctrl.h"
+
+#include <osmocom/core/msgb.h>
+#include <osmocom/core/logging.h>
+#include <osmocom/core/application.h>
+
+static struct log_info log_info = {};
+
+static void exit_help(void)
+{
+	printf("Usage:\n");
+	printf("\tosmo-ctrl-client HOST PORT get VARIABLE\n");
+	printf("\tosmo-ctrl-client HOST PORT set VARIABLE VALUE\n");
+	printf("\tosmo-ctrl-client HOST PORT monitor\n");
+	exit(2);
+}
+
+int main(int argc, char **argv)
+{
+	struct simple_ctrl_handle *sch;
+	const char *host;
+	uint16_t port;
+	int rc;
+
+	if (argc < 4)
+		exit_help();
+
+	host = argv[1];
+	port = atoi(argv[2]);
+
+	osmo_init_logging2(NULL, &log_info);
+
+	sch = simple_ctrl_open(NULL, host, port, 1000);
+	if (!sch)
+		exit(1);
+
+	if (!strcmp(argv[3], "get")) {
+		char *val;
+		if (argc < 5)
+			exit_help();
+		val = simple_ctrl_get(sch, argv[4]);
+		if (!val)
+			exit(2);
+		printf("%s\n", val);
+	} else if (!strcmp(argv[3], "set")) {
+		if (argc < 6)
+			exit_help();
+		rc = simple_ctrl_set(sch, argv[4], argv[5]);
+		if (rc < 0)
+			exit(1);
+	} else if (!strcmp(argv[3], "monitor")) {
+		simple_ctrl_set_timeout(sch, 0);
+		while (true) {
+			struct msgb *msg = simple_ctrl_receive(sch);
+			if (!msg)
+				exit(1);
+			printf("%s", (char *) msgb_l2(msg));
+			msgb_free(msg);
+		}
+	} else
+		exit_help();
+
+	exit(0);
+}