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-rw-r--r--p2p/nat/natpmp.go3
-rw-r--r--p2p/nat/natupnp.go7
2 files changed, 3 insertions, 7 deletions
diff --git a/p2p/nat/natpmp.go b/p2p/nat/natpmp.go
index 577a424fb..8ba971472 100644
--- a/p2p/nat/natpmp.go
+++ b/p2p/nat/natpmp.go
@@ -115,8 +115,7 @@ func potentialGateways() (gws []net.IP) {
return gws
}
for _, addr := range ifaddrs {
- switch x := addr.(type) {
- case *net.IPNet:
+ if x, ok := addr.(*net.IPNet); ok {
if lan10.Contains(x.IP) || lan176.Contains(x.IP) || lan192.Contains(x.IP) {
ip := x.IP.Mask(x.Mask).To4()
if ip != nil {
diff --git a/p2p/nat/natupnp.go b/p2p/nat/natupnp.go
index 69099ac04..029143b7b 100644
--- a/p2p/nat/natupnp.go
+++ b/p2p/nat/natupnp.go
@@ -81,11 +81,8 @@ func (n *upnp) internalAddress() (net.IP, error) {
return nil, err
}
for _, addr := range addrs {
- switch x := addr.(type) {
- case *net.IPNet:
- if x.Contains(devaddr.IP) {
- return x.IP, nil
- }
+ if x, ok := addr.(*net.IPNet); ok && x.Contains(devaddr.IP) {
+ return x.IP, nil
}
}
}