From f77e3cc333c40d544e7a78e77fa5731bfa60bf3a Mon Sep 17 00:00:00 2001 From: mestre Date: Mon, 17 Sep 2018 14:14:39 +0000 Subject: [PATCH] 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@ --- usr.bin/audioctl/audioctl.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) 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 * @@ -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); -- 2.20.1