From 0ce52b94989eac820d95bb88920ac5291366874a Mon Sep 17 00:00:00 2001
From: chending <chen.ding@xiaoxitech.com>
Date: Mon, 4 Mar 2024 15:52:57 +0800
Subject: [PATCH] fix:fake dns

---
 leaf/src/app/fake_dns.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/leaf/src/app/fake_dns.rs b/leaf/src/app/fake_dns.rs
index f642d3b89..826d3247a 100644
--- a/leaf/src/app/fake_dns.rs
+++ b/leaf/src/app/fake_dns.rs
@@ -174,12 +174,12 @@ impl FakeDnsImpl {
     }
 
     fn allocate_ip(&mut self, domain: &str) -> Ipv4Addr {
+        let ip = self.get_ip();
         if let Some(prev_domain) = self.ip_to_domain.insert(self.cursor, domain.to_owned()) {
             // Remove the entry in the reverse map to make sure we won't have
             // multiple domains point to a same IP.
             self.domain_to_ip.remove(&prev_domain);
         }
-        let ip = self.get_ip();
         self.domain_to_ip.insert(domain.to_owned(), self.cursor);
         self.cursor += 1;
         ip