arphrd-util: rename arphrd-list.[ch] -> arphrd-util.[ch]

src/basic/arphrd-util.c

@@ -0,0 +1,25 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+
+#include <errno.h>
+#include <linux/if_arp.h>
+#include <string.h>
+
+#include "arphrd-util.h"
+#include "macro.h"
+
+static const struct arphrd_name* lookup_arphrd(register const char *str, register GPERF_LEN_TYPE len);
+
+#include "arphrd-from-name.h"
+#include "arphrd-to-name.h"
+
+int arphrd_from_name(const char *name) {
+        const struct arphrd_name *sc;
+
+        assert(name);
+
+        sc = lookup_arphrd(name, strlen(name));
+        if (!sc)
+                return -EINVAL;
+
+        return sc->id;
+}