diff options
Diffstat (limited to 'modules/upnp/upnp.cpp')
| -rw-r--r-- | modules/upnp/upnp.cpp | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/modules/upnp/upnp.cpp b/modules/upnp/upnp.cpp index cff13251ce..8e4e833d45 100644 --- a/modules/upnp/upnp.cpp +++ b/modules/upnp/upnp.cpp @@ -52,10 +52,12 @@ int UPNP::discover(int timeout, int ttl, const String &device_filter) { int error = 0; struct UPNPDev *devlist; + CharString cs = discover_multicast_if.utf8(); + const char *m_if = cs.length() ? cs.get_data() : nullptr; if (is_common_device(device_filter)) { - devlist = upnpDiscover(timeout, discover_multicast_if.utf8().get_data(), nullptr, discover_local_port, discover_ipv6, ttl, &error); + devlist = upnpDiscover(timeout, m_if, nullptr, discover_local_port, discover_ipv6, ttl, &error); } else { - devlist = upnpDiscoverAll(timeout, discover_multicast_if.utf8().get_data(), nullptr, discover_local_port, discover_ipv6, ttl, &error); + devlist = upnpDiscoverAll(timeout, m_if, nullptr, discover_local_port, discover_ipv6, ttl, &error); } if (error != UPNPDISCOVER_SUCCESS) { |