linux-kernel - [PATCH] tools: perf: util: sort.c: Changed from using strncat to strlcat

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Date:	Sun, 12 Oct 2014 22:40:35 +0200
From:	Rickard Strandqvist <rickard_strandqvist@...ctrumdigital.se>
To:	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Paul Mackerras <paulus@...ba.org>
Cc:	Rickard Strandqvist <rickard_strandqvist@...ctrumdigital.se>,
	Ingo Molnar <mingo@...hat.com>,
	Arnaldo Carvalho de Melo <acme@...nel.org>,
	Namhyung Kim <namhyung@...nel.org>,
	Jiri Olsa <jolsa@...nel.org>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Don Zickus <dzickus@...hat.com>, linux-kernel@...r.kernel.org
Subject: [PATCH] tools: perf: util: sort.c:  Changed from using strncat to strlcat

Changed from using strncat to strlcat to simplify the code

Signed-off-by: Rickard Strandqvist <rickard_strandqvist@...ctrumdigital.se>
---
 tools/perf/util/sort.c |   12 ++++--------
 1 file changed, 4 insertions(+), 8 deletions(-)

diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c
index 14e5a03..6e242f0 100644
--- a/tools/perf/util/sort.c
+++ b/tools/perf/util/sort.c
@@ -759,8 +759,7 @@ static int hist_entry__snoop_snprintf(struct hist_entry *he, char *bf,
 				    size_t size, unsigned int width)
 {
 	char out[64];
-	size_t sz = sizeof(out) - 1; /* -1 for null termination */
-	size_t i, l = 0;
+	size_t i;
 	u64 m = PERF_MEM_SNOOP_NA;
 
 	out[0] = '\0';
@@ -771,12 +770,9 @@ static int hist_entry__snoop_snprintf(struct hist_entry *he, char *bf,
 	for (i = 0; m && i < NUM_SNOOP_ACCESS; i++, m >>= 1) {
 		if (!(m & 0x1))
 			continue;
-		if (l) {
-			strcat(out, " or ");
-			l += 4;
-		}
-		strncat(out, snoop_access[i], sz - l);
-		l += strlen(snoop_access[i]);
+		if (*out != '\0')
+			strlcat(out, " or ", sizeof(out));
+		strlcat(out, snoop_access[i], sizeof(out));
 	}
 
 	if (*out == '\0')
-- 
1.7.10.4

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