--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/pircharge/main.c	Tue Dec 19 02:58:38 2017 +0000
@@ -0,0 +1,55 @@
+#include <sys/types.h>
+#include <sys/errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <rvinterf/exitcodes.h>
+
+char *socket_pathname = "/tmp/rvinterf_socket";
+int sock;
+
+int adccal_a, adccal_b;
+
+main(argc, argv)
+	char **argv;
+{
+	extern int optind;
+	extern char *optarg;
+	int c, sopt = 0;
+	fd_set fds;
+
+	while ((c = getopt(argc, argv, "s:")) != EOF)
+		switch (c) {
+		case 's':
+			socket_pathname = optarg;
+			sopt++;
+			continue;
+		case '?':
+		default:
+			/* error msg already printed */
+			exit(ERROR_USAGE);
+		}
+	if (argc != optind + 2) {
+		fprintf(stderr, "usage: %s adccal-a adccal-b\n", argv[0]);
+		exit(ERROR_USAGE);
+	}
+	adccal_a = atoi(argv[optind]);
+	adccal_b = atoi(argv[optind+1]);
+
+	connect_local_socket();
+	init();
+	for (;;) {
+		FD_ZERO(&fds);
+		FD_SET(sock, &fds);
+		c = select(sock+1, &fds, 0, 0, 0);
+		if (c < 0) {
+			if (errno == EINTR)
+				continue;
+			perror("select");
+			exit(ERROR_UNIX);
+		}
+		if (FD_ISSET(sock, &fds))
+			handle_rvinterf_input();
+		fflush(stdout);
+	}
+}