From: mestre <mestre@openbsd.org>
Date: Mon, 17 Sep 2018 14:14:39 +0000 (+0000)
Subject: unveil(2) "path" (/dev/audioctl0 by default, or changed via args) with rw
X-Git-Url: http://artulab.com/gitweb/?a=commitdiff_plain;h=f77e3cc333c40d544e7a78e77fa5731bfa60bf3a;p=openbsd

unveil(2) "path" (/dev/audioctl0 by default, or changed via args) with rw
access and disable further calls to unveil(2) with unveil(NULL, NULL).

OK ratchov@
---

diff --git a/usr.bin/audioctl/audioctl.c b/usr.bin/audioctl/audioctl.c
index bbc035a8dbd..706df9a0f2e 100644
--- a/usr.bin/audioctl/audioctl.c
+++ b/usr.bin/audioctl/audioctl.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: audioctl.c,v 1.35 2017/05/31 04:18:58 jsg Exp $	*/
+/*	$OpenBSD: audioctl.c,v 1.36 2018/09/17 14:14:39 mestre Exp $	*/
 /*
  * Copyright (c) 2016 Alexandre Ratchov <alex@caoua.org>
  *
@@ -217,6 +217,11 @@ main(int argc, char **argv)
 	argc -= optind;
 	argv += optind;
 
+	if (unveil(path, "rw") == -1)
+		err(1, "unveil");
+	if (unveil(NULL, NULL) == -1)
+		err(1, "unveil");
+
 	fd = open(path, O_RDWR);
 	if (fd < 0)
 		err(1, "%s", path);