Fixed buffer size issue.

git-svn-id: https://rt-thread.googlecode.com/svn/trunk@2166 bbd45198-f89e-11dd-88c7-29a3b14d5316

1 files changed, 5 insertions, 3 deletions

diff --git a/examples/network/tcpclient.c b/examples/network/tcpclient.c
index cc15b1178b..9927847f74 100644
--- a/examples/network/tcpclient.c
+++ b/examples/network/tcpclient.c
@@ -2,6 +2,8 @@
 #include <lwip/netdb.h> /* 为了解析主机名，需要包含netdb.h头文件 */

 #include <lwip/sockets.h> /* 使用BSD socket，需要包含sockets.h头文件 */

 

+#define BUFSZ	1024

+

 static const char send_data[] = "This is TCP Client from RT-Thread."; /* 发送用到的数据 */

 void tcpclient(const char* url, int port)

 {

@@ -14,7 +16,7 @@ void tcpclient(const char* url, int port)
    host = gethostbyname(url);

 

    /* 分配用于存放接收数据的缓冲 */

-   recv_data = rt_malloc(1024);

+   recv_data = rt_malloc(BUFSZ);

    if (recv_data == RT_NULL)

    {

        rt_kprintf("No memory\n");

@@ -51,8 +53,8 @@ void tcpclient(const char* url, int port)
 

    while(1)

    {

-       /* 从sock连接中接收最大1024字节数据 */

-       bytes_received = recv(sock, recv_data, 1024, 0);

+       /* 从sock连接中接收最大BUFSZ - 1字节数据 */

+       bytes_received = recv(sock, recv_data, BUFSZ - 1, 0);

        if (bytes_received <= 0)

        {

            /* 接收失败，关闭这个连接 */