From 026aa799bdccd860575e4ce228b750f47abd31e2 Mon Sep 17 00:00:00 2001
From: Lakshminarayana Gurram
 <38289425+lakshminarayanagurram@users.noreply.github.com>
Date: Fri, 8 Mar 2019 10:40:59 +0530
Subject: [PATCH] Fix NULL checking of addrinfo structure in try_bind function

---
 src/meshlink.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/src/meshlink.c b/src/meshlink.c
index 6f83c22f..9faccff4 100644
--- a/src/meshlink.c
+++ b/src/meshlink.c
@@ -626,23 +626,22 @@ static bool try_bind(int port) {
 		return false;
 	}
 
-	while(ai) {
-		int fd = socket(ai->ai_family, SOCK_STREAM, IPPROTO_TCP);
+	//while(ai) {
+	for(struct addrinfo *aip = ai; aip; aip = aip->ai_next) {
+		int fd = socket(aip->ai_family, SOCK_STREAM, IPPROTO_TCP);
 
 		if(!fd) {
 			freeaddrinfo(ai);
 			return false;
 		}
 
-		int result = bind(fd, ai->ai_addr, ai->ai_addrlen);
+		int result = bind(fd, aip->ai_addr, aip->ai_addrlen);
 		closesocket(fd);
 
 		if(result) {
 			freeaddrinfo(ai);
 			return false;
 		}
-
-		ai = ai->ai_next;
 	}
 
 	freeaddrinfo(ai);
-- 
2.39.5