pledge "stdio" after opening up the input & output files.

ok jsg

diff --git a/usr.sbin/mkuboot/mkuboot.c b/usr.sbin/mkuboot/mkuboot.c
index 6f5cd69..3610336 100644 (file)
--- a/usr.sbin/mkuboot/mkuboot.c
+++ b/usr.sbin/mkuboot/mkuboot.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: mkuboot.c,v 1.5 2015/10/12 05:54:18 deraadt Exp $     */
+/*     $OpenBSD: mkuboot.c,v 1.6 2015/10/12 06:24:28 deraadt Exp $     */
 
 /*
  * Copyright (c) 2008 Mark Kettenis
@@ -230,6 +230,9 @@ main(int argc, char *argv[])
        if (ofd < 0)
                err(1, "%s", oname);
 
+       if (pledge("stdio", NULL) == -1)
+               err(1, "pledge");
+
        /* Write initial header. */
        if (write(ofd, &ih, sizeof ih) != sizeof ih)
                err(1, "%s", oname);