--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ctrl-client/client.h	Sun Dec 17 08:53:02 2023 +0000
@@ -0,0 +1,30 @@
+#pragma once
+
+#include <stdint.h>
+#include <stdbool.h>
+
+enum match_kind {
+	MATCH_NAME,
+	MATCH_HOST,
+	MATCH_BOTH,
+	MATCH_EITHER,
+};
+
+/* a client config */
+struct host_cfg {
+	/* name of this client */
+	const char *name;
+	/* remote host/IP */
+	char *remote_host;
+	/* remote port */
+	uint16_t remote_port;
+};
+
+struct host_cfg *host_cfg_alloc(void *ctx, const char *name, const char *host, uint16_t port);
+bool match_config(const struct host_cfg *cfg, const char *match, enum match_kind k);
+char *make_authority(void *ctx, const struct host_cfg *cfg);
+
+struct osmo_stream_cli *make_tcp_client(struct host_cfg *cfg);
+
+void update_name(struct host_cfg *cfg, const char *new_name);
+void update_host(struct host_cfg *cfg, const char *new_host);