1 files changed, 34 insertions, 0 deletions
diff --git a/lib/chkname.h b/lib/chkname.h
new file mode 100644
index 0000000..4306a8a
--- /dev/null
+++ b/lib/chkname.h
@@ -0,0 +1,34 @@
+/*
+ * SPDX-FileCopyrightText: 1990 - 1994, Julianne Frances Haugh
+ * SPDX-FileCopyrightText: 1997 - 2000, Marek Michałkiewicz
+ * SPDX-FileCopyrightText: 2005       , Tomasz Kłoczko
+ * SPDX-FileCopyrightText: 2008       , Nicolas François
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+/* $Id$ */
+#ifndef _CHKNAME_H_
+#define _CHKNAME_H_
+
+
+/*
+ * is_valid_user_name(), is_valid_group_name() - check the new user/group
+ * name for validity;
+ * return values:
+ *   true  - OK
+ *   false - bad name
+ */
+
+
+#include <config.h>
+
+#include <stdbool.h>
+#include <stddef.h>
+
+
+extern size_t login_name_max_size(void);
+extern bool is_valid_user_name (const char *name);
+extern bool is_valid_group_name (const char *name);
+
+#endif