Pledge that arithmetic only takes "stdio".

diff --git a/games/arithmetic/arithmetic.c b/games/arithmetic/arithmetic.c
index c7796e0..bd2bfd5 100644 (file)
--- a/games/arithmetic/arithmetic.c
+++ b/games/arithmetic/arithmetic.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: arithmetic.c,v 1.19 2015/08/22 14:47:41 deraadt Exp $ */
+/*     $OpenBSD: arithmetic.c,v 1.20 2015/10/10 22:32:55 doug Exp $    */
 
 /*
  * Copyright (c) 1989, 1993
@@ -101,6 +101,9 @@ main(int argc, char *argv[])
        extern int optind;
        int ch, cnt;
 
+       if (pledge("stdio", NULL) == -1)
+               err(1, "pledge");
+
        while ((ch = getopt(argc, argv, "hr:o:")) != -1)
                switch(ch) {
                case 'o': {