--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mtctest/main.c	Tue Jun 28 18:25:28 2022 -0800
@@ -0,0 +1,63 @@
+/*
+ * Main module for ThemWi test MT call generator.
+ */
+
+#include <sys/types.h>
+#include <sys/errno.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <syslog.h>
+#include <unistd.h>
+
+extern int mtc_socket;
+extern int disconnect_mode;
+
+main(argc, argv)
+	char **argv;
+{
+	extern int optind;
+	extern char *optarg;
+	char *from;
+	fd_set fds;
+	int c;
+
+	from = 0;
+	while ((c = getopt(argc, argv, "f:")) != EOF) {
+		switch (c) {
+		case 'f':
+			from = optarg;
+			continue;
+		default:
+		usage:
+			fprintf(stderr,
+				"usage: %s [-f from-number] to-number\n",
+				argv[0]);
+			exit(1);
+		}
+	}
+	if (argc != optind + 1)
+		goto usage;
+	openlog("themwi-test-mtc", 0, LOG_LOCAL5);
+	init_setup_msg(from, argv[optind]);
+	connect_mtc_socket();
+	send_setup_msg();
+	/* main select loop */
+	for (;;) {
+		FD_ZERO(&fds);
+		FD_SET(mtc_socket, &fds);
+		if (!disconnect_mode)
+			FD_SET(0, &fds);
+		c = select(mtc_socket+1, &fds, 0, 0, 0);
+		if (c < 0) {
+			if (errno == EINTR)
+				continue;
+			perror("select");
+			exit(1);
+		}
+		if (FD_ISSET(mtc_socket, &fds))
+			mtc_socket_select();
+		if (!disconnect_mode && FD_ISSET(0, &fds))
+			send_disconnect_req();
+	}
+}