From 9b991b13b2e92f0b81fb4771ea185d1d20e99485 Mon Sep 17 00:00:00 2001
From: ubuntu201711081 <201711081@jbnu.ac.kr>
Date: Fri, 4 Dec 2020 07:23:13 +0000
Subject: [PATCH] replace inet_ntoa to inet_ntop

---
 server.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/server.c b/server.c
index 474de73..21b990e 100644
--- a/server.c
+++ b/server.c
@@ -198,8 +198,9 @@ int main(int argc, const char *argv[]){
     while ((csock = accept(sock, (struct sockaddr *)&client_addr,&client_addr_len)) >= 0)
     {
         int fd;
-        /*inet_ntoa is not reentrant function. do not use it in signal handler.*/
-        printf("Connect : %s\n",(inet_ntoa(client_addr.sin_addr)));
+        char ip_buf[INET_ADDRSTRLEN];
+        char * msg = inet_ntop(AF_INET,&addr.sin_addr,ip_buf,sizeof(ip_buf));
+        fprintf(stderr,"Connected on : %s:%d\n",msg == NULL ? "(null)" : msg , ntohs(addr.sin_port));
         if((fd = read_request(csock,buf,bufsize)) > 0){
             send_response(csock,fd,buf,bufsize);
             close(fd);