From 8fbc817b0246653533d86ed4e0a18ccb6c4d5d8b Mon Sep 17 00:00:00 2001
From: claudio <claudio@openbsd.org>
Date: Thu, 22 Oct 2015 15:47:00 +0000
Subject: [PATCH] Add a regress test for if_indextoname() and if_nametoindex()

---
 regress/lib/libc/ifnameindex/Makefile   | 12 ++++++++++
 regress/lib/libc/ifnameindex/ifnitest.c | 30 +++++++++++++++++++++++++
 2 files changed, 42 insertions(+)
 create mode 100644 regress/lib/libc/ifnameindex/Makefile
 create mode 100644 regress/lib/libc/ifnameindex/ifnitest.c

diff --git a/regress/lib/libc/ifnameindex/Makefile b/regress/lib/libc/ifnameindex/Makefile
new file mode 100644
index 00000000000..1f21973a10e
--- /dev/null
+++ b/regress/lib/libc/ifnameindex/Makefile
@@ -0,0 +1,12 @@
+#	$OpenBSD: Makefile,v 1.1 2015/10/22 15:47:00 claudio Exp $
+
+PROG=		ifnitest
+SRCS=		ifnitest.c
+NOMAN=		# defined
+
+REGRESS_TARGETS=do-test
+
+do-test: ${PROG}
+	./${PROG}
+
+.include <bsd.regress.mk>
diff --git a/regress/lib/libc/ifnameindex/ifnitest.c b/regress/lib/libc/ifnameindex/ifnitest.c
new file mode 100644
index 00000000000..61102f77a96
--- /dev/null
+++ b/regress/lib/libc/ifnameindex/ifnitest.c
@@ -0,0 +1,30 @@
+/*	$OpenBSD: ifnitest.c,v 1.1 2015/10/22 15:47:00 claudio Exp $ */
+
+/* Public domain. 2015, Claudio Jeker */
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <net/if.h>
+#include <err.h>
+
+int
+main(int argc, char *argv[])
+{
+	char name[IF_NAMESIZE], *ifname;
+	unsigned int lo0index;
+
+	lo0index = if_nametoindex("lo0");
+	if (lo0index == 0)
+		err(1, "if_nametoindex(lo0)");
+	ifname = if_indextoname(lo0index, name);
+	if (ifname == NULL || strcmp("lo0", ifname) != 0)
+		err(1, "if_indextoname(%u)", lo0index);
+
+	/* test failures */
+	if (if_nametoindex("4kingbula") != 0)
+		err(1, "if_nametoindex(4kingbula)");
+	if (if_indextoname(65536, name) != NULL)
+		err(1, "if_indextoname(%u)", 65536);
+
+	return 0;
+}
-- 
2.20.1