3 files changed, 90 insertions, 0 deletions
diff --git a/src/shared/.gitignore b/src/shared/.gitignore
index 9f4ec9f9c6..61709e8da1 100644
--- a/src/shared/.gitignore
+++ b/src/shared/.gitignore
@@ -6,3 +6,7 @@
 /af-from-name.h
 /af-list.txt
 /af-to-name.h
+/arphrd-from-name.gperf
+/arphrd-from-name.h
+/arphrd-list.txt
+/arphrd-to-name.h
diff --git a/src/shared/arphrd-list.c b/src/shared/arphrd-list.c
new file mode 100644
index 0000000000..6e113eff7a
--- /dev/null
+++ b/src/shared/arphrd-list.c
@@ -0,0 +1,59 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+/***
+  This file is part of systemd.
+
+  Copyright 2014 Lennart Poettering
+
+  systemd is free software; you can redistribute it and/or modify it
+  under the terms of the GNU Lesser General Public License as published by
+  the Free Software Foundation; either version 2.1 of the License, or
+  (at your option) any later version.
+
+  systemd 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
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public License
+  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <net/if_arp.h>
+#include <sys/socket.h>
+#include <string.h>
+
+#include "util.h"
+#include "arphrd-list.h"
+
+static const struct arphrd_name* lookup_arphrd(register const char *str, register unsigned int len);
+
+#include "arphrd-to-name.h"
+#include "arphrd-from-name.h"
+
+const char *arphrd_to_name(int id) {
+
+        if (id <= 0)
+                return NULL;
+
+        if (id >= (int) ELEMENTSOF(arphrd_names))
+                return NULL;
+
+        return arphrd_names[id];
+}
+
+int arphrd_from_name(const char *name) {
+        const struct arphrd_name *sc;
+
+        assert(name);
+
+        sc = lookup_arphrd(name, strlen(name));
+        if (!sc)
+                return 0;
+
+        return sc->id;
+}
+
+int arphrd_max(void) {
+        return ELEMENTSOF(arphrd_names);
+}
diff --git a/src/shared/arphrd-list.h b/src/shared/arphrd-list.h
new file mode 100644
index 0000000000..5ca182c9e8
--- /dev/null
+++ b/src/shared/arphrd-list.h
@@ -0,0 +1,27 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+#pragma once
+
+/***
+  This file is part of systemd.
+
+  Copyright 2014 Lennart Poettering
+
+  systemd is free software; you can redistribute it and/or modify it
+  under the terms of the GNU Lesser General Public License as published by
+  the Free Software Foundation; either version 2.1 of the License, or
+  (at your option) any later version.
+
+  systemd 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
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public License
+  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+const char *arphrd_to_name(int id);
+int arphrd_from_name(const char *name);
+
+int arphrd_max(void);