linux-kernel - [PATCH] fs: 9p: use strlcpy instead of strncpy

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Message-ID: <51E4F73C.4000205@asianux.com>
Date:	Tue, 16 Jul 2013 15:33:16 +0800
From:	Chen Gang <gang.chen@...anux.com>
To:	ericvh@...il.com, rminnich@...dia.gov, lucho@...kov.net
CC:	v9fs-developer@...ts.sourceforge.net,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: [PATCH] fs: 9p: use strlcpy instead of strncpy

For 'NULL' terminated string, recommend always to be ended by zero.

Signed-off-by: Chen Gang <gang.chen@...anux.com>
---
 fs/9p/vfs_inode.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c
index 25b018e..94de6d1 100644
--- a/fs/9p/vfs_inode.c
+++ b/fs/9p/vfs_inode.c
@@ -146,7 +146,7 @@ static umode_t p9mode2unixmode(struct v9fs_session_info *v9ses,
 		char type = 0, ext[32];
 		int major = -1, minor = -1;
 
-		strncpy(ext, stat->extension, sizeof(ext));
+		strlcpy(ext, stat->extension, sizeof(ext));
 		sscanf(ext, "%c %u %u", &type, &major, &minor);
 		switch (type) {
 		case 'c':
@@ -1186,7 +1186,7 @@ v9fs_stat2inode(struct p9_wstat *stat, struct inode *inode,
 			 * this even with .u extension. So check
 			 * for non NULL stat->extension
 			 */
-			strncpy(ext, stat->extension, sizeof(ext));
+			strlcpy(ext, stat->extension, sizeof(ext));
 			/* HARDLINKCOUNT %u */
 			sscanf(ext, "%13s %u", tag_name, &i_nlink);
 			if (!strncmp(tag_name, "HARDLINKCOUNT", 13))
-- 
1.7.7.6
--
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