--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test-fsk/disc_cmd.c	Mon Mar 04 21:03:19 2024 -0800
@@ -0,0 +1,55 @@
+/*
+ * In this module we implement user-driven sending of CANCEL and BYE
+ * disconnection requests.
+ */
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <strings.h>
+#include "../libsip/out_msg.h"
+
+extern struct sockaddr_in sip_dest_sin;
+extern char to_uri[];
+extern int rtp_out_enable;
+
+send_cancel_req()
+{
+	struct sip_msg_out msg;
+	int rc;
+
+	rtp_out_enable = 0;
+	rc = start_request_out_msg(&msg, "CANCEL", to_uri);
+	if (rc < 0) {
+msg_size_err:	fprintf(stderr, "composing CANCEL message: size error\n");
+		return(-1);
+	}
+	rc = add_req_boilerplate(&msg, "1 CANCEL", 0);
+	if (rc < 0)
+		goto msg_size_err;
+	out_msg_finish(&msg);
+	sip_tx_packet(&msg, &sip_dest_sin);
+	return(0);
+}
+
+send_bye_req()
+{
+	struct sip_msg_out msg;
+	int rc;
+
+	rtp_out_enable = 0;
+	rc = start_request_out_msg(&msg, "BYE", to_uri);
+	if (rc < 0) {
+msg_size_err:	fprintf(stderr, "composing BYE message: size error\n");
+		return(-1);
+	}
+	rc = add_req_boilerplate(&msg, "2 BYE", 1);
+	if (rc < 0)
+		goto msg_size_err;
+	out_msg_finish(&msg);
+	sip_tx_packet(&msg, &sip_dest_sin);
+	return(0);
+}