tcpclient.c和server端代码

答案:1 悬赏:30

解决时间 2021-12-22 02:03

提问者网友：幽瑟玉琼情殇
2021-12-21 22:36

最佳答案

二级知识专家网友：一场云烟
2021-12-21 23:38

CLIENT:
#include
#include
#include
#pragma comment(lib,"Ws2_32")

#define PORT 6666
#define MAXDATASIZE 100
int main()
{
int sockfd, numbytes;
char buf[MAXDATASIZE];
char msg[MAXDATASIZE];
char *argv="127.0.0.1";
struct sockaddr_in their_addr;

WSADATA ws;WSAStartup(MAKEWORd(2,2),&ws); //初始化Windows Socket Dll
if ((sockfd = socket(AF_INET, SOCK_STREAM, 0)) == -1)
{
//如果建立socket失败，退出程序
printf("socket error\n");
exit(1);
}

//连接对方
their_addr.sin_family = AF_INET;
their_addr.sin_port = htons(PORT);
their_addr.sin_addr.s_addr = inet_addr(argv);
if (connect(sockfd, (struct sockaddr *)&their_addr,sizeof(struct sockaddr)) == -1)
{
//如果连接失败，退出程序
printf("connet error\n");
closesocket(sockfd);
exit(1);
}

while(1){
scanf("%s",msg);
//发送数据
if (send(sockfd, msg, MAXDATASIZE, 0) == -1)

{
printf("send error");
closesocket(sockfd);
exit(1);
}

//接收数据，并打印出来
if ((numbytes=recv(sockfd, buf, MAXDATASIZE, 0)) == -1)
{
//接收数据失败，退出程序
printf("recv error\n");
closesocket(sockfd);
exit(1);
}
buf[numbytes] = '\0';
printf("Received: %s\n",buf); }
closesocket(sockfd);
return 0;
}

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