Use SPDX license identifiers

[safcm/safcm.git] / cmd / safcm / config / hosts.go

diff --git a/cmd/safcm/config/hosts.go b/cmd/safcm/config/hosts.go
index b3c4a24c65b1119bcf0ba8c87c72f691670c3e3c..05924df585169b248369553c060016964007e91a 100644 (file)
--- a/cmd/safcm/config/hosts.go
+++ b/cmd/safcm/config/hosts.go
@@ -1,19 +1,7 @@
 // Config: parse hosts.yaml
 
-// Copyright (C) 2021  Simon Ruderich
-//
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+// SPDX-License-Identifier: GPL-3.0-or-later
+// Copyright (C) 2021-2024  Simon Ruderich
 
 package config
 
@@ -69,6 +57,10 @@ func LoadHosts() (*Hosts, error) {
                                errPrefix, GroupSpecialSeparator)
                }
 
+               if hostMap[x.Name] != nil {
+                       return nil, fmt.Errorf("%s host name already exists",
+                               errPrefix)
+               }
                hostMap[x.Name] = x
        }