From ea5bfb52e0059f95380c763377c528d336826c1a Mon Sep 17 00:00:00 2001
From: liyang <liyang1025@gmail.com>
Date: Tue, 6 Oct 2020 21:55:21 +0800
Subject: [PATCH] fix bug about stack corrupt for example  ip address is
 spceial "172.16.107.7, Proxy:False, 210.3.213.69"

---
 binding/c/ip2region.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/binding/c/ip2region.c b/binding/c/ip2region.c
index 53ccba7..a6abaf3 100644
--- a/binding/c/ip2region.c
+++ b/binding/c/ip2region.c
@@ -401,12 +401,12 @@ IP2R_API uint_t ip2long(const char *ip)
             continue;
         }
 
+       if ( i > 3 ) {
+            ipval = 0;
+            break;
+        }
         if ( *cs == '.' ) {
             //single part length limit
-            if ( i > 3 ) {
-                ipval = 0;
-                break;
-            }
 
             if ( p < 0 ) break;
             buffer[i] = '\0';