Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
From:   cgel.zte@gmail.com
To:     acme@kernel.org
Cc:     mingo@redhat.com, mark.rutland@arm.com,
        alexander.shishkin@linux.intel.com, jolsa@kernel.org,
        namhyung@kernel.org, irogers@google.com,
        linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org,
        ye xingchen <ye.xingchen@zte.com.cn>,
        Zeal Robot <zealci@zte.com.cn>
Subject: [PATCH linux-next] perf tools: use strscpy() is more robust and safer
Date:   Thu, 22 Sep 2022 01:35:12 +0000
Message-Id: <20220922013512.233108-1-ye.xingchen@zte.com.cn>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Precedence: bulk

From: ye xingchen <ye.xingchen@zte.com.cn>

The implementation of strscpy() is more robust and safer.

That's now the recommended way to copy NUL terminated strings.

Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: ye xingchen <ye.xingchen@zte.com.cn>
---
 tools/perf/arch/x86/util/event.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/arch/x86/util/event.c b/tools/perf/arch/x86/util/event.c
index e670f3547581..a7d3bfde0c7b 100644
--- a/tools/perf/arch/x86/util/event.c
+++ b/tools/perf/arch/x86/util/event.c
@@ -61,7 +61,7 @@ int perf_event__synthesize_extra_kmaps(struct perf_tool *tool,
 		event->mmap.pgoff = pos->pgoff;
 		event->mmap.pid   = machine->pid;
 
-		strlcpy(event->mmap.filename, kmap->name, PATH_MAX);
+		strscpy(event->mmap.filename, kmap->name, PATH_MAX);
 
 		if (perf_tool__process_synth_event(tool, event, machine,
 						   process) != 0) {
-- 
2.25.1