rgw: require bucket name in bucket chown

Checking and reporting missing the mandatory parameter avoid clueless error
message for bucket chown.

Signed-off-by: Zulai Wang <zl31wang@gmail.com>
(cherry picked from commit 158a1f4313c0fa206031ede6f48a26c0c7467d57)

diff --git a/src/rgw/rgw_admin.cc b/src/rgw/rgw_admin.cc
index cc0c53ab78b31dc4ba4aec66deedbb9276587587..a57e2cacd7bed8ea932f2bf70413e3e89c5d7a6c 100644 (file)
--- a/src/rgw/rgw_admin.cc
+++ b/src/rgw/rgw_admin.cc
@@ -6196,6 +6196,10 @@ int main(int argc, const char **argv)
   }
 
   if (opt_cmd == OPT::BUCKET_CHOWN) {
+    if (bucket_name.empty()) {
+      cerr << "ERROR: bucket name not specified" << std::endl;
+      return EINVAL;
+    }
 
     bucket_op.set_bucket_name(bucket_name);
     bucket_op.set_new_bucket_name(new_bucket_name);