===================================================================
RCS file: /cvsrepo/anoncvs/cvs/src/usr.bin/dc/dc.c,v
retrieving revision 1.18
retrieving revision 1.19
diff -u -r1.18 -r1.19
--- src/usr.bin/dc/dc.c	2016/07/17 17:30:47	1.18
+++ src/usr.bin/dc/dc.c	2017/11/29 14:34:17	1.19
@@ -1,4 +1,4 @@
-/*	$OpenBSD: dc.c,v 1.18 2016/07/17 17:30:47 otto Exp $	*/
+/*	$OpenBSD: dc.c,v 1.19 2017/11/29 14:34:17 otto Exp $	*/
 
 /*
  * Copyright (c) 2003, Otto Moerbeek <otto@drijf.net>
@@ -72,6 +72,11 @@
 	argc -= optind;
 	argv += optind;
 
+	if (argc == 0) {
+		if (pledge("stdio", NULL) == -1)
+			err(1, "pledge");
+	}
+
 	init_bmachine(extended_regs);
 	(void)setvbuf(stdout, NULL, _IOLBF, 0);
 	(void)setvbuf(stderr, NULL, _IOLBF, 0);
@@ -108,9 +113,6 @@
 		 */
 		 return (0);
 	}
-
-	if (pledge("stdio", NULL) == -1)
-		err(1, "pledge");
 
 	src_setstream(&src, stdin);
 	reset_bmachine(&src);