服务端:
#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <string.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <unistd.h>
#define BUFSIZE 255
int main()
{
int sockfd,ret;
int acceptfd;
struct sockaddr_in s_addr;
sockfd = socket(AF_INET,SOCK_STREAM,0);
if(sockfd == -1)
{
printf("socket error!
");
return 0;
}
memset(&s_addr,0,sizeof(struct sockaddr_in));
s_addr.sin_family = AF_INET;
s_addr.sin_port = htons(1234);
s_addr.sin_addr.s_addr = htons(INADDR_ANY);
ret = bind(sockfd,(struct sockaddr *)&s_addr,sizeof(struct sockaddr_in));
if(ret == -1)
{
printf("bind error!
");
return 0;
}
ret = listen(sockfd,5);
if(ret == -1)
{
printf("listen error!
");
return 0;
}
int addrlen = sizeof(struct sockaddr);
acceptfd = accept(sockfd,(struct sockaddr *)&s_addr,&addrlen);
if(acceptfd == -1)
{
printf("accept error!
");
}
else
{
printf("%s-----%d
",inet_ntoa(s_addr.sin_addr),ntohs(s_addr.sin_port));
}
char buf[BUFSIZE];
while(1)
{
memset(buf,0,sizeof(buf));
ret = recv(acceptfd,buf,BUFSIZE,0);
if(ret < 0)
{
printf("server recv data error!
");
continue;
}
printf("%s
",buf);
if(strcmp(buf,"quit") == 0)
break;
memset(buf,0,sizeof(buf));
printf("%s",">>>");
scanf("%s",buf);
ret = send(acceptfd,buf,strlen(buf),0);
if(ret < 0)
{
printf("server send data error!
");
continue;
}
if(strcmp(buf,"quit") == 0)
break;
}
close(acceptfd);
close(sockfd);
return 0;
}
客户端
#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <string.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <unistd.h>
#define BUFSIZE 255
int main()
{
int sockfd,ret;
int acceptfd;
struct sockaddr_in s_addr;
sockfd = socket(AF_INET,SOCK_STREAM,0);
if(sockfd == -1)
{
printf("socket error!
");
return 0;
}
memset(&s_addr,0,sizeof(struct sockaddr_in));
s_addr.sin_family = AF_INET;
s_addr.sin_port = htons(1234);
ret = connect(sockfd,(struct sockaddr *)&s_addr,sizeof(struct sockaddr_in));
if(ret == -1)
{
printf("connect error!
");
return 0;
}
char buf[BUFSIZE];
while(1)
{
memset(buf,0,sizeof(buf));
printf("%s",">>>");
scanf("%s",buf);
ret = send(sockfd,buf,strlen(buf),0);
if(ret < 0)
{
printf("send error!
");
break;
}
if(strcmp(buf,"quit") == 0)
break;
memset(buf,0,sizeof(buf));
ret = recv(sockfd,buf,BUFSIZE,0);
if(ret < 0)
{
printf("client recv data error!
");
continue;
}
printf("%s
",buf);
if(strcmp(buf,"quit") == 0)
break;
}
close(sockfd);
return 0;
}