From 851ac5c081b6f18ab0e5125321dd78ef2d2a8581 Mon Sep 17 00:00:00 2001
From: rolfliu <rolfxy.liu@gmail.com>
Date: Fri, 10 Jan 2020 14:26:02 +0800
Subject: [PATCH] Fix #43 #434 for Nginx transparent proxy

---
 lib/ff_syscall_wrapper.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/ff_syscall_wrapper.c b/lib/ff_syscall_wrapper.c
index e97eae20..48519966 100644
--- a/lib/ff_syscall_wrapper.c
+++ b/lib/ff_syscall_wrapper.c
@@ -354,7 +354,7 @@ ip_opt_convert(int optname)
         case LINUX_IP_DROP_MEMBERSHIP:
             return IP_DROP_MEMBERSHIP;
         default:
-            return -1;
+            return optname;
     }
 }