From: Guenter Roeck <linux@roeck-us.net>
To: linux-kernel@vger.kernel.org
Cc: Guenter Roeck <linux@roeck-us.net>
Subject: [PATCH] test_hexdump: Replace strncpy with memcpy
Date: Sun, 1 Jul 2018 13:57:30 -0700 [thread overview]
Message-ID: <1530478650-20922-1-git-send-email-linux@roeck-us.net> (raw)
gcc 8.1.0 complains:
lib/test_hexdump.c:84:3: warning:
'strncpy' output truncated before terminating
nul copying as many bytes from a string as its length
lib/test_hexdump.c:82:19: note: length computed here
Using strncpy() is indeed less than perfect since the length of data to
be copied has already been determined with strlen(). Replace strncpy()
with memcpy() to address the warning and optimize the code a little.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
lib/test_hexdump.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/lib/test_hexdump.c b/lib/test_hexdump.c
index 3f415d8101f3..1c3c513add77 100644
--- a/lib/test_hexdump.c
+++ b/lib/test_hexdump.c
@@ -81,7 +81,7 @@ static void __init test_hexdump_prepare_test(size_t len, int rowsize,
const char *q = *result++;
size_t amount = strlen(q);
- strncpy(p, q, amount);
+ memcpy(p, q, amount);
p += amount;
*p++ = ' ';
--
2.7.4
next reply other threads:[~2018-07-01 20:57 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-07-01 20:57 Guenter Roeck [this message]
2018-07-04 21:23 ` [PATCH] test_hexdump: Replace strncpy with memcpy Andy Shevchenko
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=1530478650-20922-1-git-send-email-linux@roeck-us.net \
--to=linux@roeck-us.net \
--cc=linux-kernel@vger.kernel.org \
/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;
as well as URLs for NNTP newsgroup(s).