diff mbox series

unicode: replace strncpy() by strscpy()

Message ID 20190527174733.GA29547@embeddedor (mailing list archive)
State New, archived
Headers show
Series unicode: replace strncpy() by strscpy() | expand

Commit Message

Gustavo A. R. Silva May 27, 2019, 5:47 p.m. UTC
The strncpy() function is being deprecated. Replace it by the safer
strscpy() and fix the following Coverity warning:

"Calling strncpy with a maximum size argument of 12 bytes on destination
array version_string of size 12 bytes might leave the destination string
unterminated."

Notice that, unlike strncpy(), strscpy() always null-terminates the
destination string.

Addresses-Coverity-ID: 1445547 ("Buffer not null terminated")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
---
 fs/unicode/utf8-core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Gabriel Krisman Bertazi May 28, 2019, 5:47 p.m. UTC | #1
"Gustavo A. R. Silva" <gustavo@embeddedor.com> writes:

> The strncpy() function is being deprecated. Replace it by the safer
> strscpy() and fix the following Coverity warning:
>
> "Calling strncpy with a maximum size argument of 12 bytes on destination
> array version_string of size 12 bytes might leave the destination string
> unterminated."
>
> Notice that, unlike strncpy(), strscpy() always null-terminates the
> destination string.
>

Thanks, I'll get this queued up.
diff mbox series

Patch

diff --git a/fs/unicode/utf8-core.c b/fs/unicode/utf8-core.c
index 6afab4fdce90..a367041468cf 100644
--- a/fs/unicode/utf8-core.c
+++ b/fs/unicode/utf8-core.c
@@ -131,7 +131,7 @@  static int utf8_parse_version(const char *version, unsigned int *maj,
 		{0, NULL}
 	};
 
-	strncpy(version_string, version, sizeof(version_string));
+	strscpy(version_string, version, sizeof(version_string));
 
 	if (match_token(version_string, token, args) != 1)
 		return -EINVAL;