btrfs-progs: use strncpy in is_same_blk_file

Although we're getting strings from the caller, let's be safe.

Resolves-coverity-id: 1199475
Signed-off-by: David Sterba <dsterba@suse.cz>

1 files changed, 3 insertions, 3 deletions

diff --git a/utils.c b/utils.c
index af0a8fe5..531bc82a 100644
--- a/utils.c
+++ b/utils.c
@@ -1005,11 +1005,11 @@ static int is_same_blk_file(const char* a, const char* b)
 	char real_a[PATH_MAX];
 	char real_b[PATH_MAX];
 
-	if(!realpath(a, real_a))
-		strcpy(real_a, a);
+	if (!realpath(a, real_a))
+		strncpy_null(real_a, a);
 
 	if (!realpath(b, real_b))
-		strcpy(real_b, b);
+		strncpy_null(real_b, b);
 
 	/* Identical path? */
 	if(strcmp(real_a, real_b) == 0)