From: awolk <awolk@openbsd.org>
Date: Sun, 11 Jun 2017 17:32:19 +0000 (+0000)
Subject: usr/bin/ktrace: replace snprintf(3)/write(2) with dprintf(3)
X-Git-Url: http://artulab.com/gitweb/?a=commitdiff_plain;h=c6ec1211d391175f8a67b29387637e404355389a;p=openbsd

usr/bin/ktrace: replace snprintf(3)/write(2) with dprintf(3)

Brought to attention by BlackFrog on #openbsd-daily

OK deraadt@
---

diff --git a/usr.bin/ktrace/ktrace.c b/usr.bin/ktrace/ktrace.c
index 7864bc5bfea..1652d41533a 100644
--- a/usr.bin/ktrace/ktrace.c
+++ b/usr.bin/ktrace/ktrace.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: ktrace.c,v 1.33 2016/07/18 09:36:50 guenther Exp $	*/
+/*	$OpenBSD: ktrace.c,v 1.34 2017/06/11 17:32:19 awolk Exp $	*/
 /*	$NetBSD: ktrace.c,v 1.4 1995/08/31 23:01:44 jtc Exp $	*/
 
 /*-
@@ -250,10 +250,7 @@ usage(void)
 static void
 no_ktrace(int signo)
 {
-	char buf[8192];
-
-	snprintf(buf, sizeof(buf),
+	dprintf(STDERR_FILENO,
 "error:\tktrace() system call not supported in the running kernel\n\tre-compile kernel with 'option KTRACE'\n");
-	write(STDERR_FILENO, buf, strlen(buf));
 	_exit(1);
 }