大二下学期的Linux高级编程作业,比较简单,本文章仅提供代码,仅供参考,挂科模式启动~
题目要求:
TCP服务器端代码:
//serve.c //服务器端代码
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#define MAXSIZE 128
char news[MAXSIZE];
int res; //用以接收函数返回值
void* pthread_chat(void * arg) //创建线程用以接收数据
{
int confd = *(int *)arg;
while(1)
{
res = recv(confd, news, sizeof(news), 0);
if(res <= 0)
{
perror("recv");
break;
}
printf("The news is: %s\n",news);
memset(news,0,MAXSIZE);
send(confd,"OK",2,0);
}
printf("One client over\n");
close(confd);
}
char *Time() //获取当前时间
{
time_t timer;
struct tm *tblock;
timer = time(NULL);
tblock = localtime(&timer);
return asctime(tblock);
}
void save(char *s) //储存日志文件
{
int fd;
fd = open("journal",O_RDWR|O_APPEND|O_CREAT);
if(fd < 0)
perror("open");
else
{
char *buf = Time();
strcat(buf,s);
write(fd,buf,MAXSIZE);
write(fd,"\n",2);
lseek(fd,0,SEEK_END);
if(res < 0)
perror("write");
}
}
int main()
{
int sockfd = socket(AF_INET, SOCK_STREAM, 0);
struct sockaddr_in saddr, caddr;
saddr.sin_family = AF_INET;
saddr.sin_port = htons(6666);
saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
res = bind(sockfd,(struct sockaddr*)&saddr, sizeof(saddr));
if(res < 0)
perror("bind");
listen(sockfd, 5); //监听端口
while(1)
{
int len = sizeof(caddr);
int confd = accept(sockfd,(struct sockaddr*)&caddr, &len);
if(confd < 0)
{
perror("accept");
continue;
}
else
{
save(inet_ntoa(caddr.sin_addr));
}
printf("Accept confdis:%d, ip=%s\n",
confd,inet_ntoa(caddr.sin_addr));
pthread_t tid;
pthread_create(&tid, NULL, pthread_chat, &confd);
}
}
客户端代码如下:
//client.c //客户端代码
#include
#include
#include
#include
#include
#include
#include
#define MAXSIZE 128
char news[MAXSIZE];
int res; //用来接收函数返回值
int main()
{
printf("------Welcome join the chat room-----\n");
printf("If you want to quit,please input --bye--\n");
int sockfd = socket(AF_INET, SOCK_STREAM, 0);
struct sockaddr_in saddr;
saddr.sin_family = AF_INET;
saddr.sin_port = htons(6666);
saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
int confd = connect(sockfd,(struct sockaddr*)&saddr,sizeof(saddr));
if(confd < 0)
perror("connect");
while(1)
{
printf("Please input the news\n");
fgets(news,MAXSIZE,stdin);
if(strncmp(news,"bye",3) == 0)
{
break;
}
send(sockfd, news, strlen(news), 0);
memset(news,0,MAXSIZE);
recv(sockfd, news, sizeof(news), 0);
printf("The serve's news is: %s\n",news);
}
close(sockfd);
exit(0);
}
程序操作方法:(编译程序时需要添加-lpthread参数)