public inbox for linux-kernel@vger.kernel.org
 help / color / mirror / Atom feed
From: <yang.yang29@zte.com.cn>
To: <freude@linux.ibm.com>
Cc: <hca@linux.ibm.com>, <gor@linux.ibm.com>,
	<agordeev@linux.ibm.com>, <borntraeger@linux.ibm.com>,
	<svens@linux.ibm.com>, <linux-s390@vger.kernel.org>,
	<linux-kernel@vger.kernel.org>, <xu.panda@zte.com.cn>,
	<yang.yang29@zte.com.cn>
Subject: [PATCH linux-next] s390/zcrypt: use strscpy() to instead of strncpy()
Date: Fri, 23 Dec 2022 10:45:21 +0800 (CST)	[thread overview]
Message-ID: <202212231045217042473@zte.com.cn> (raw)

From: Xu Panda <xu.panda@zte.com.cn>

The implementation of strscpy() is more robust and safer.
That's now the recommended way to copy NUL-terminated strings.

Signed-off-by: Xu Panda <xu.panda@zte.com.cn>
Signed-off-by: Yang Yang <yang.yang29@zte.com>
---
 drivers/s390/crypto/zcrypt_api.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/s390/crypto/zcrypt_api.c b/drivers/s390/crypto/zcrypt_api.c
index 4bf36e53fe3e..6fe05bb82c77 100644
--- a/drivers/s390/crypto/zcrypt_api.c
+++ b/drivers/s390/crypto/zcrypt_api.c
@@ -347,8 +347,7 @@ static ssize_t zcdn_create_store(struct class *class,
 	int rc;
 	char name[ZCDN_MAX_NAME];

-	strncpy(name, skip_spaces(buf), sizeof(name));
-	name[sizeof(name) - 1] = '\0';
+	strscpy(name, skip_spaces(buf), sizeof(name));

 	rc = zcdn_create(strim(name));

@@ -365,8 +364,7 @@ static ssize_t zcdn_destroy_store(struct class *class,
 	int rc;
 	char name[ZCDN_MAX_NAME];

-	strncpy(name, skip_spaces(buf), sizeof(name));
-	name[sizeof(name) - 1] = '\0';
+	strscpy(name, skip_spaces(buf), sizeof(name));

 	rc = zcdn_destroy(strim(name));

-- 
2.15.2

             reply	other threads:[~2022-12-23  2:45 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-12-23  2:45 yang.yang29 [this message]
2023-01-02 12:23 ` [PATCH linux-next] s390/zcrypt: use strscpy() to instead of strncpy() Heiko Carstens

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=202212231045217042473@zte.com.cn \
    --to=yang.yang29@zte.com.cn \
    --cc=agordeev@linux.ibm.com \
    --cc=borntraeger@linux.ibm.com \
    --cc=freude@linux.ibm.com \
    --cc=gor@linux.ibm.com \
    --cc=hca@linux.ibm.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-s390@vger.kernel.org \
    --cc=svens@linux.ibm.com \
    --cc=xu.panda@zte.com.cn \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox