From d241def81514078e2f3650218781bc4353c4d4bd Mon Sep 17 00:00:00 2001
From: guowenxue <guowenxue@gmail.com>
Date: Mon, 06 Nov 2023 16:53:10 +0800
Subject: [PATCH] update TCP/UDP socket example code
---
ch4_thread/socket_server_thread.c | 12 ++++++++++--
1 files changed, 10 insertions(+), 2 deletions(-)
diff --git a/ch4_thread/socket_server_thread.c b/ch4_thread/socket_server_thread.c
index 5446eb0..8e4ecee 100644
--- a/ch4_thread/socket_server_thread.c
+++ b/ch4_thread/socket_server_thread.c
@@ -8,6 +8,7 @@
#include <stdlib.h>
#include <getopt.h>
#include <pthread.h>
+#include <ctype.h>
typedef void *(THREAD_BODY) (void *thread_arg);
@@ -78,8 +79,8 @@
memset(&servaddr, 0, sizeof(servaddr));
servaddr.sin_family=AF_INET;
servaddr.sin_port = htons(port);
- servaddr.sin_addr.s_addr = htonl(INADDR_ANY);
- //inet_aton("192.168.0.16", &servaddr.sin_addr);
+ servaddr.sin_addr.s_addr = htonl(INADDR_ANY); /* listen all the IP address on this host */
+ //inet_aton("192.168.0.16", &servaddr.sin_addr); /* Only listen specify IP address on this host */
rv=bind(sockfd, (struct sockaddr *)&servaddr, sizeof(servaddr));
if(rv < 0)
@@ -158,6 +159,7 @@
int clifd;
int rv;
char buf[1024];
+ int i;
if( !ctx )
{
@@ -189,6 +191,12 @@
{
printf("Read %d bytes data from Server: %s\n", rv, buf);
}
+
+ /* convert letter from lowercase to uppercase */
+ for(i=0; i<rv; i++)
+ {
+ buf[i]=toupper(buf[i]);
+ }
rv=write(clifd, buf, rv);
if(rv < 0)
--
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