From 0ccb25c5fa5c912f0151823b50aa375bc454a6dd Mon Sep 17 00:00:00 2001
From: Thomas Haller <thaller@redhat.com>
Date: Thu, 14 Mar 2019 11:16:19 +0100
Subject: [PATCH] shared: add nm_ip_addr_is_null() helper

---
 shared/nm-utils/nm-shared-utils.h | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/shared/nm-utils/nm-shared-utils.h b/shared/nm-utils/nm-shared-utils.h
index f48bfede7e..fae0abe828 100644
--- a/shared/nm-utils/nm-shared-utils.h
+++ b/shared/nm-utils/nm-shared-utils.h
@@ -126,6 +126,16 @@ typedef struct {
 
 extern const NMIPAddr nm_ip_addr_zero;
 
+static inline gboolean
+nm_ip_addr_is_null (int addr_family, gconstpointer addr)
+{
+	nm_assert (addr);
+	if (addr_family == AF_INET6)
+		return IN6_IS_ADDR_UNSPECIFIED ((const struct in6_addr *) addr);
+	nm_assert (addr_family == AF_INET);
+	return ((const struct in_addr *) addr)->s_addr == 0;
+}
+
 static inline void
 nm_ip_addr_set (int addr_family, gpointer dst, gconstpointer src)
 {