tunnel: pretty print route failures better

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/tunnel/winipcfg/types.go b/tunnel/winipcfg/types.go
index 870d058f..15aaa863 100644
--- a/tunnel/winipcfg/types.go
+++ b/tunnel/winipcfg/types.go
@@ -7,6 +7,7 @@ package winipcfg
 
 import (
 	"encoding/binary"
+	"fmt"
 	"net"
 	"unsafe"
 
@@ -588,6 +589,10 @@ type RouteData struct {
 	Metric      uint32
 }
 
+func (routeData *RouteData) String() string {
+	return fmt.Sprintf("%+v", *routeData)
+}
+
 // IPAdapterDNSSuffix structure stores a DNS suffix in a linked list of DNS suffixes for a particular adapter.
 // https://docs.microsoft.com/en-us/windows/desktop/api/iptypes/ns-iptypes-_ip_adapter_dns_suffix
 type IPAdapterDNSSuffix struct {