1 files changed, 55 insertions, 0 deletions
diff --git a/lib/includes/hicn/validation.h b/lib/includes/hicn/validation.h
new file mode 100644
index 000000000..05be6d306
--- /dev/null
+++ b/lib/includes/hicn/validation.h
@@ -0,0 +1,55 @@
+/*
+ * Copyright (c) 2022 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * \file validation.h
+ * \brief Functions for input validation
+ */
+#include <ctype.h>
+#include <hicn/util/sstrncpy.h>
+
+static inline bool
+is_number (const char *string, size_t maxlen)
+{
+  size_t len = strnlen_s (string, maxlen);
+  for (size_t i = 0; i < len; i++)
+    {
+      if (!isdigit (string[i]))
+	return false;
+    }
+  return len != 0;
+}
+
+/**
+ * A symbolic name must be at least 1 character and must begin with an alpha.
+ * The remainder must be an alphanum.
+ */
+static inline bool
+is_symbolic_name (const char *name, size_t maxlen)
+{
+  size_t len = strnlen_s (name, maxlen);
+  if (len <= 0)
+    return false;
+  if (!isalpha (name[0]))
+    return false;
+
+  for (size_t i = 1; i < len; i++)
+    {
+      if (!isalnum (name[i]) && name[i] != '_' && name[i] != '-')
+	return false;
+    }
+
+  return true;
+}