diff options
Diffstat (limited to 'block.c')
| -rw-r--r-- | block.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/block.c b/block.c index 8416376c9b..6dbcb7e083 100644 --- a/block.c +++ b/block.c @@ -6809,8 +6809,11 @@ void bdrv_refresh_filename(BlockDriverState *bs) pstrcpy(bs->filename, sizeof(bs->filename), bs->exact_filename); } else { QString *json = qobject_to_json(QOBJECT(bs->full_open_options)); - snprintf(bs->filename, sizeof(bs->filename), "json:%s", - qstring_get_str(json)); + if (snprintf(bs->filename, sizeof(bs->filename), "json:%s", + qstring_get_str(json)) >= sizeof(bs->filename)) { + /* Give user a hint if we truncated things. */ + strcpy(bs->filename + sizeof(bs->filename) - 4, "..."); + } qobject_unref(json); } } |