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From: Chen Gang <gang.chen@asianux•com>
To: Jiri Kosina <jkosina@suse•cz>
Cc: Gustavo Padovan <gustavo@padovan•org>,
	David Herrmann <dh.herrmann@gmail•com>,
	Marcel Holtmann <marcel@holtmann•org>,
	Johan Hedberg <johan.hedberg@gmail•com>,
	David Miller <davem@davemloft•net>,
	andrei.emeltchenko@intel•com,
	"linux-bluetooth@vger•kernel.org"
	<linux-bluetooth@vger•kernel.org>,
	netdev <netdev@vger•kernel.org>
Subject: [PATCH v3] Bluetooth: hidp: using strlcpy instead of strncpy, also beautify code.
Date: Mon, 13 May 2013 10:07:11 +0800	[thread overview]
Message-ID: <51904ACF.6010904@asianux.com> (raw)
In-Reply-To: <alpine.LNX.2.00.1305091041140.23038@pobox.suse.cz>


For NUL terminated string, need always let it ended by zero.

Since have already called memcpy() to initialize 'ci', so need not
redundant initialization.

Better use ''if(session->hid) {} else if(session->input) {}"" instead
of ''if(session->hid) {}; if(session->input) {};''

Signed-off-by: Chen Gang <gang.chen@asianux•com>
---
 net/bluetooth/hidp/core.c |   14 ++++----------
 1 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/net/bluetooth/hidp/core.c b/net/bluetooth/hidp/core.c
index 940f5ac..f13a8da 100644
--- a/net/bluetooth/hidp/core.c
+++ b/net/bluetooth/hidp/core.c
@@ -76,25 +76,19 @@ static void hidp_copy_session(struct hidp_session *session, struct hidp_conninfo
 	ci->flags = session->flags;
 	ci->state = BT_CONNECTED;
 
-	ci->vendor  = 0x0000;
-	ci->product = 0x0000;
-	ci->version = 0x0000;
-
 	if (session->input) {
 		ci->vendor  = session->input->id.vendor;
 		ci->product = session->input->id.product;
 		ci->version = session->input->id.version;
 		if (session->input->name)
-			strncpy(ci->name, session->input->name, 128);
+			strlcpy(ci->name, session->input->name, 128);
 		else
-			strncpy(ci->name, "HID Boot Device", 128);
-	}
-
-	if (session->hid) {
+			strlcpy(ci->name, "HID Boot Device", 128);
+	} else if (session->hid) {
 		ci->vendor  = session->hid->vendor;
 		ci->product = session->hid->product;
 		ci->version = session->hid->version;
-		strncpy(ci->name, session->hid->name, 128);
+		strlcpy(ci->name, session->hid->name, 128);
 	}
 }
 
-- 
1.7.7.6

  parent reply	other threads:[~2013-05-13  2:08 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-05-07 13:50 [PATCH] Bluetooth: hidp: using strlcpy or strcpy instead of strncpy Chen Gang
2013-05-07 14:08 ` [Suggestion] Bluetooth: hidp: redundant initialization or issue for function hidp_copy_session Chen Gang
     [not found]   ` <51890AC9.7010501-bOixZGp5f+dBDgjK7y7TUQ@public.gmane.org>
2013-05-07 19:37     ` David Herrmann
     [not found]       ` <CANq1E4Q8g6Uy5DMiEf3aEBmfWN=KnVCfqxErYr=ZWD94D4vmAQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2013-05-08  1:50         ` Chen Gang
2013-05-07 19:31 ` [PATCH] Bluetooth: hidp: using strlcpy or strcpy instead of strncpy David Herrmann
     [not found]   ` <CANq1E4SmY+CD0uf53_b6GeFkQ-LYnpdxsDGSRMWdn2i1mnb6WQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2013-05-08  1:02     ` Chen Gang
     [not found]       ` <5189A417.503-bOixZGp5f+dBDgjK7y7TUQ@public.gmane.org>
2013-05-08  3:34         ` [PATCH v2] Bluetooth: hidp: using strlcpy instead of strncpy, also beautify code Chen Gang
     [not found]           ` <5189C7C6.8090408-bOixZGp5f+dBDgjK7y7TUQ@public.gmane.org>
2013-05-08 15:16             ` David Herrmann
2013-05-09  1:07               ` Chen Gang
2013-05-09  8:42             ` Jiri Kosina
     [not found]               ` <alpine.LNX.2.00.1305091041140.23038-ztGlSCb7Y1iN3ZZ/Hiejyg@public.gmane.org>
2013-05-09  8:48                 ` Chen Gang
2013-05-13  2:07               ` Chen Gang [this message]
2013-05-17  7:04                 ` [PATCH v3] " Chen Gang
     [not found]                 ` <51904ACF.6010904-bOixZGp5f+dBDgjK7y7TUQ@public.gmane.org>
2013-05-20 21:52                   ` Gustavo Padovan
2013-05-21  1:40                     ` Chen Gang

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