--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mgw/main.c	Sat Jul 09 22:51:44 2022 -0800
@@ -0,0 +1,63 @@
+/*
+ * Main module for themwi-mgw.
+ */
+
+#include <sys/types.h>
+#include <sys/errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <strings.h>
+#include <signal.h>
+#include <syslog.h>
+#include <unistd.h>
+
+fd_set select_for_read;
+void (*select_handlers[FD_SETSIZE])();
+void *select_data[FD_SETSIZE];
+
+static int max_fd;
+
+update_max_fd(newfd)
+{
+	if (newfd >= FD_SETSIZE) {
+		syslog(LOG_CRIT, "FATAL: file descriptor %d >= FD_SETSIZE",
+			newfd);
+		exit(1);
+	}
+	if (newfd > max_fd)
+		max_fd = newfd;
+}
+
+main(argc, argv)
+	char **argv;
+{
+	fd_set fds;
+	int cc, i;
+
+	openlog("themwi-mgw", 0, LOG_LOCAL5);
+	read_config_file();
+	if (create_ctrl_socket() < 0) {
+		fprintf(stderr, "error creating TMGW control socket\n");
+		exit(1);
+	}
+	signal(SIGPIPE, SIG_IGN);
+	/* main select loop */
+	for (;;) {
+		bcopy(&select_for_read, &fds, sizeof(fd_set));
+		cc = select(max_fd+1, &fds, 0, 0, 0);
+		if (cc < 0) {
+			if (errno == EINTR)
+				continue;
+			syslog(LOG_CRIT, "select: %m");
+			exit(1);
+		}
+		for (i = 0; cc && i <= max_fd; i++) {
+			if (FD_ISSET(i, &fds)) {
+				select_handlers[i](i, select_data[i]);
+				cc--;
+			}
+		}
+		free_deleted_endpoints();
+	}
+}