add ln, util.a

ln.c

@@ -0,0 +1,23 @@
+/* See LICENSE file for copyright and license details. */
+#include <stdbool.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include "util.h"
+
+int
+main(int argc, char *argv[])
+{
+	bool sflag = false;
+	char c;
+
+	while((c = getopt(argc, argv, "s")) != -1)
+		switch(c) {
+		case 's':
+			sflag = true;
+			break;
+		default:
+			exit(EXIT_FAILURE);
+		}
+	enmasse(argc - optind, &argv[optind], sflag ? symlink : link);
+	return EXIT_SUCCESS;
+}