convert strncpy to memcpy

strncpy is known to be a confusing function because of its
termination semantics.  These calls are all correct, but it
takes some examination to see why. In particular, every one
of them expects to copy up to the length limit, and then
makes some arrangement for terminating the result.

We can just use memcpy, along with noting explicitly how the
result is terminated (if it is not already obvious). That
should make it more clear to a reader that we are doing the
right thing.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/tag.c b/tag.c
index 5b0ac62ed8..5b2a06d92b 100644
--- a/tag.c
+++ b/tag.c
@@ -82,7 +82,7 @@ int parse_tag_buffer(struct tag *item, const void *data, unsigned long size)
 	nl = memchr(bufptr, '\n', tail - bufptr);
 	if (!nl || sizeof(type) <= (nl - bufptr))
 		return -1;
-	strncpy(type, bufptr, nl - bufptr);
+	memcpy(type, bufptr, nl - bufptr);
 	type[nl - bufptr] = '\0';
 	bufptr = nl + 1;