[英]TFTP Client (based on ENET) won't connect to remote TFTP server
I'm trying to implement a TFTP client in C (Windows, Visual Studio 2005). 我正在尝试在C(Windows,Visual Studio 2005)中实现TFTP客户端。
The TFTP client is supposed to connect to a remote TFTP server address on port 69. TFTP客户端应该连接到端口69上的远程TFTP服务器地址。
The TFTP client is using the ENET API for the networking stuff, but I can't get it to work. TFTP客户端使用ENET API来进行网络连接,但是我无法使其正常工作。
The TFTP client never switches to the 'CONNECTED' state and is stuck in 'CONNECTING' state. TFTP客户端永远不会切换到“已连接”状态,而会停留在“正在连接”状态。
When I run the native Windows TFTP client on Windows 7 (cmd, windows console), it has no problem connecting to the TFTP server and I can retrieve a remote file without any problems. 当我在Windows 7(cmd,Windows控制台)上运行本机Windows TFTP客户端时,连接到TFTP服务器没有问题,并且我可以检索到远程文件而没有任何问题。
So I must be doing something wrong in the code below and I'm hoping that somebody out there can tell me what I'm doing wrong: 因此,我肯定在下面的代码中做错了,我希望外面的人可以告诉我我做错了什么:
#include "enet.h"
#include <stdlib.h>
#include <stdio.h>
#pragma comment(lib, "Winmm.lib")
#pragma comment(lib, "Ws2_32.lib")
void main(void)
{
ENetAddress address;
ENetEvent thisEvent;
ENetPeer *peer;
ENetHost* client;
int rc;
memset(&thisEvent,0,sizeof(ENetEvent));
rc = enet_initialize ();
/* Create a TFTP client */
client = enet_host_create(NULL, 1,1,0,0);
/* Address and port of remote TFTP server */
rc = enet_address_set_host (& address, "192.168.30.50");
address.port = 69;
/* Connect client to server */
peer = enet_host_connect (client, & address, 1, 0);
while (1)
{
printf("State = %d | Event Type = %d\n", peer->state, thisEvent.type);
enet_host_service (client, &thisEvent, 1000);
}
}
From the documentation it doesn't look like this "ENet" library is for plain UDP communications. 从文档中可以看出,该“ ENet”库似乎不是用于普通UDP通信的。 Rather, it implements a "single, uniform protocol layered over UDP".
相反,它实现了“在UDP上分层的单个统一协议”。 This is not the TFTP protocol, so your client is not compatible with a standard TFTP server.
这不是TFTP协议,因此您的客户端与标准TFTP服务器不兼容。
Use plain sockets instead. 请改用普通套接字。
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.