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network: in_addr_is_null() may return negative errno

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So, do not silently cast the returned value to boolean.
Exception is the case that family is trivially AF_INET or AF_INET6.
This commit is contained in:
Yu Watanabe
2019-02-11 01:28:09 +09:00
parent c606db69ab
commit d40b01e44b
6 changed files with 14 additions and 25 deletions
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src/network/netdev/vxlan.c
+2 -6
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@@ -33,24 +33,20 @@ static int netdev_vxlan_fill_message_create(NetDev *netdev, Link *link, sd_netli
return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_ID attribute: %m");
}
if (!in_addr_is_null(v->remote_family, &v->remote)) {
if (in_addr_is_null(v->remote_family, &v->remote) == 0) {
if (v->remote_family == AF_INET)
r = sd_netlink_message_append_in_addr(m, IFLA_VXLAN_GROUP, &v->remote.in);
else
r = sd_netlink_message_append_in6_addr(m, IFLA_VXLAN_GROUP6, &v->remote.in6);
if (r < 0)
return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_GROUP attribute: %m");
}
if (!in_addr_is_null(v->local_family, &v->local)) {
if (in_addr_is_null(v->local_family, &v->local) == 0) {
if (v->local_family == AF_INET)
r = sd_netlink_message_append_in_addr(m, IFLA_VXLAN_LOCAL, &v->local.in);
else
r = sd_netlink_message_append_in6_addr(m, IFLA_VXLAN_LOCAL6, &v->local.in6);
if (r < 0)
return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_LOCAL attribute: %m");
}