linux-kernel - [PATCH linux-next] perf lock: use strscpy() is more robust and safer

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Message-Id: <20220922013231.232933-1-ye.xingchen@zte.com.cn>
Date:   Thu, 22 Sep 2022 01:32:31 +0000
From:   cgel.zte@...il.com
To:     acme@...nel.org
Cc:     mingo@...hat.com, mark.rutland@....com,
        alexander.shishkin@...ux.intel.com, jolsa@...nel.org,
        namhyung@...nel.org, linux-perf-users@...r.kernel.org,
        linux-kernel@...r.kernel.org, ye xingchen <ye.xingchen@....com.cn>,
        Zeal Robot <zealci@....com.cn>
Subject: [PATCH linux-next] perf lock: use strscpy() is more robust and safer

From: ye xingchen <ye.xingchen@....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@....com.cn>
Signed-off-by: ye xingchen <ye.xingchen@....com.cn>
---
 tools/perf/builtin-lock.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/builtin-lock.c b/tools/perf/builtin-lock.c
index 52a6a10a610c..b6837b7df110 100644
--- a/tools/perf/builtin-lock.c
+++ b/tools/perf/builtin-lock.c
@@ -949,7 +949,7 @@ static int lock_contention_caller(struct evsel *evsel, struct perf_sample *sampl
 			if (offset)
 				scnprintf(buf, size, "%s+%#lx", sym->name, offset);
 			else
-				strlcpy(buf, sym->name, size);
+				strscpy(buf, sym->name, size);
 			return 0;
 		}
 
-- 
2.25.1