route.c: pass the right parameter to IN6_IS_ADDR_UNSPECIFIED

IN6_IS_ADDR_UNSPECIFIED on most systems is defined as a macro that
expects a struct in6_addr* argument.

In one instance we are passing the right address but using a wrong type.
Fix this invocation by properly passing the right pointer.

This issue might become more critical on systems implementing
IN6_IS_ADDR_UNSPECIFIED as a function rather than a macro.

Signed-off-by: Antonio Quartulli <a@unstable.cc>
Acked-by:
Message-Id: <20210826061725.22169-1-a@unstable.cc>
URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg22767.html
Signed-off-by: Gert Doering <gert@greenie.muc.de>
(cherry picked from commit aa0e44e235f7bee0e12707b6899d00bad85195fc)

diff --git a/src/openvpn/route.c b/src/openvpn/route.c
index 3ff9f53de6cb1619e915f1895ae391f04f69889c..5cfbb284ff8e42a0573c89709bcf07184cf2ec1c 100644 (file)
--- a/src/openvpn/route.c
+++ b/src/openvpn/route.c
@@ -3380,7 +3380,7 @@ get_default_gateway_ipv6(struct route_ipv6_gateway_info *rgi6,
     if (net_route_v6_best_gw(ctx, dest, &rgi6->gateway.addr_ipv6,
                              rgi6->iface) == 0)
     {
-        if (!IN6_IS_ADDR_UNSPECIFIED(rgi6->gateway.addr_ipv6.s6_addr))
+        if (!IN6_IS_ADDR_UNSPECIFIED(&rgi6->gateway.addr_ipv6))
         {
             rgi6->flags |= RGI_ADDR_DEFINED;
         }