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Coverity CID 1301: Return early if we could not open /dev/null

This commit is contained in:
christos 2006-03-22 02:23:11 +00:00
parent 7ef824757b
commit 9a02e676ef
1 changed files with 4 additions and 2 deletions
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6
sbin/routed/trace.c
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@ -1,4 +1,4 @@
/* $NetBSD: trace.c,v 1.30 2004/04/21 19:01:17 christos Exp $ */
/* $NetBSD: trace.c,v 1.31 2006/03/22 02:23:11 christos Exp $ */
/*
* Copyright (c) 1983, 1988, 1993
@ -41,7 +41,7 @@
#include <fcntl.h>
#ifdef __NetBSD__
__RCSID("$NetBSD: trace.c,v 1.30 2004/04/21 19:01:17 christos Exp $");
__RCSID("$NetBSD: trace.c,v 1.31 2006/03/22 02:23:11 christos Exp $");
#elif defined(__FreeBSD__)
__RCSID("$FreeBSD$");
#else
@ -215,6 +215,8 @@ trace_close(int zap_stdio)
fclose(ftrace);
ftrace = 0;
fd = open(_PATH_DEVNULL, O_RDWR);
if (fd == -1)
return;
if (isatty(STDIN_FILENO))
(void)dup2(fd, STDIN_FILENO);
if (isatty(STDOUT_FILENO))