最近一直想写个有关c语言的socket通信，我使用的是eclise+cdt+wingw5.1.4，server和client都创建成功了，就是在eclipse的控制台没有任何的输出。。大家有对eclipse开发c的感兴趣的帮忙看看吧。。谢谢了。（我写的代码如下）
//server.c 服务器端和客户端 彩信的是udp通信
#include "winsock2.h"
#include "stdio.h"
#pragma comment(lib , "ws2_32.lib")
//顶一个存储IP以及端口号的结构体
struct CLIENT_ADDR
{
unsigned char s_b1 , s_b2 , s_b3 , s_b4;
unsigned short int s_port;
};
//对定义的包含IP以及端口号的结构取个别名
typedef struct CLIENT_ADDR ClientAddr;
//创建一个CLIENT_ADDR结构体
ClientAddr *createClientAddr(unsigned char s_b1 , unsigned char s_b2 , unsigned char s_b3 , unsigned char s_b4 , unsigned short int s_port)
{
ClientAddr *clientAddr = NULL;
clientAddr = (ClientAddr*)malloc(sizeof(ClientAddr));
if(clientAddr==NULL)
return NULL;
clientAddr->s_b1 = s_b1;
clientAddr->s_b2 = s_b2;
clientAddr->s_b3 = s_b3;
clientAddr->s_b4 = s_b4;
clientAddr->s_port = s_port;
return clientAddr;
}
//定义一个地址节点
struct ADDR_NODE
{
struct CLIENT_ADDR *client_addr;
struct ADDR_NODE *next;
};
//给地址节点取个别名
typedef struct ADDR_NODE AddrNode;
//创建一个子节点
AddrNode *createAddrNode(ClientAddr *clientAddr)
{
AddrNode *addrNode = NULL;
addrNode = (AddrNode*)malloc(sizeof(AddrNode));
if(addrNode!=NULL)
{
addrNode->client_addr = clientAddr;
}
else
{
return NULL;
}
}
//对链表的一个子节点进行删除
void deleteAddrNode(AddrNode *addrNode)
{
if(addrNode!=NULL)
{
ClientAddr *clientAddr = addrNode->client_addr;
if(clientAddr!=NULL)
{
free(clientAddr);
}
free(addrNode);
}
}
//对整个链表进行删除
int deleteAddrNodes(AddrNode *head)
{
if(head!=NULL)
{
AddrNode *curNode = NULL;
do{
curNode = head;
head = head->next;
deleteAddrNode(curNode);
}while(head!=NULL);
}
else
return 1;
}
//向链表中添加子节点
AddrNode * pushAddrNode(AddrNode *head , AddrNode *addrNode)
{
if(head==NULL)
{
if(addrNode==NULL)
return NULL;
else return addrNode;
}
else
{
addrNode->next = head->next;
head->next = addrNode;
return head;
}
}
//对链表中的节点进行统计
int getSize(AddrNode *head)
{
if(head==NULL)
return 0;
AddrNode *curNode = NULL;
curNode = head;
int size = 0;
while(curNode!=NULL)
{
size++;
curNode = curNode->next;
}
return size;
}
//定义一个链表头
AddrNode *head = NULL;
int main()
{
puts("服务器启动!");
SOCKET serverSocket;
WORD wVersionRequested;
wVersionRequested = MAKEWORD(2 , 0);
WSADATA wsaData;
int err = 0;
err = WSAStartup(wVersionRequested , &wsaData);
printf("err : %d/n" ,err);
SOCKADDR_IN server_addr;
SOCKADDR_IN clientAddr;
int sockAddr_size = sizeof(SOCKADDR);
server_addr.sin_addr.S_un.S_addr = inet_addr("127.0.0.1");
server_addr.sin_family = AF_INET;
server_addr.sin_port = htons(6666);
serverSocket = socket(AF_INET , SOCK_DGRAM , 0);
if(serverSocket==INVALID_SOCKET)
{
printf("创建socket失败!/n");
}
//绑定
err = bind(serverSocket , (SOCKADDR *)&server_addr ,sockAddr_size);
if(err!=0)
{
printf("socket绑定失败!/n");
}else
{
printf("socket绑定成功!/n");
}
int clientAddr_size = sizeof(SOCKADDR_IN);
while(1)
{
char msg[100];
err = recvfrom(serverSocket ,msg ,sizeof(msg) , 0 , (SOCKADDR *)&clientAddr , &clientAddr_size);
printf("client : %s/n" , msg);
if(err==-1)
{
puts("接收消息失败!");
break;
}
char sendbuf[] = "消息收到了!";
err = sendto(serverSocket ,sendbuf , strlen(sendbuf)+1 ,0 ,(SOCKADDR *)&clientAddr ,clientAddr_size);
if(err==-1)
{
puts("发送消息失败!");
break;
}else
{
puts("发送消息成功!");
}
unsigned short int s_port = ntohs(clientAddr.sin_port);
unsigned char s_b1 = clientAddr.sin_addr.S_un.S_un_b.s_b1;
unsigned char s_b2 = clientAddr.sin_addr.S_un.S_un_b.s_b2;
unsigned char s_b3 = clientAddr.sin_addr.S_un.S_un_b.s_b3;
unsigned char s_b4 = clientAddr.sin_addr.S_un.S_un_b.s_b4;
ClientAddr *clientAddr = createClientAddr(s_b1 , s_b2 , s_b3 ,s_b4 , s_port);
AddrNode *addrNode = createAddrNode(clientAddr);
printf("----------/n");
printf(" %d" , clientAddr->s_b1);
printf(" %d" , clientAddr->s_b2);
printf(" %d" , clientAddr->s_b3);
printf(" %d" , clientAddr->s_b4);
printf(":%d/n" , clientAddr->s_port);
printf("----------/n");
pushAddrNode(head , addrNode);
int size = getSize(head);
printf("当前链表中的子节点的个数:%d/n" , size);
}
closesocket(serverSocket);
WSACleanup();
return 0;
}
//=======
//client.c
#include "stdio.h"
#include "winsock2.h"
#pragma comment(lib , "ws2_32.lib")
int main()
{
puts("客户端启动!/n");
SOCKET clientSocket;
WORD wVersionRequested;
wVersionRequested = MAKEWORD(2 , 0);
WSADATA wsaData;
int err = 0;
err = WSAStartup(wVersionRequested , &wsaData);
if(err!=0)
{
printf("初始化失败!/n");
}else
{
printf("初始化成功!/n");
}
//创建socket
clientSocket = socket(AF_INET , SOCK_DGRAM , 0);
SOCKADDR_IN server_addr;
server_addr.sin_addr.S_un.S_addr = inet_addr("127.0.0.1");
server_addr.sin_family = AF_INET;
server_addr.sin_port = htons(6666);
int serverAddr_size = sizeof(SOCKADDR_IN);
int msg_len = 0;
while(1)
{
char msg[100];
printf("请输入要发送的消息:/n");
gets(msg);
msg_len = strlen(msg);
if(msg_len==0)
{
printf("发送的消息不能为空!/n");
}else
{
err = sendto(clientSocket , msg , strlen(msg)+1, 0 , (SOCKADDR *)&server_addr ,serverAddr_size);
if(err==-1)
{
puts("发送消息失败!");
break;
}
char recvbuf[100];
err = recvfrom(clientSocket , recvbuf , sizeof(recvbuf) ,0 , (SOCKADDR*)&server_addr , &serverAddr_size);
if(err==-1)
{
puts("接收失败!");
break;
}else
{
printf("server : ");
puts(recvbuf);
}
}
}
return 0;
}