server.c
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <pthread.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <sys/wait.h>
void processrequest(int client_sock,struct sockaddr_in *addr)
{
char buf[1024] = {0};
while(1)
{
ssize_t s = read(client_sock,buf,sizeof(buf)-1);
if(s < 0)
{
printf("read error\n");
continue;
}
if(s == 0)
{
printf("client say bye!\n");
close(client_sock);
break;
}
buf[s] = '\0';
printf("client #:%s\n",buf);
write(client_sock,buf,strlen(buf));
}
return;
}
typedef struct Arg{
int fd;
struct sockaddr_in addr;
}Arg;
void *createworker(void *ptr)
{
Arg *arg = (Arg *)ptr;
processrequest(arg->fd,&arg->addr);
free(arg);
return NULL;
}
int main(int argc,char *argv[])
{
if(argc != 3)
{
printf("./client IP PORT\n");
return 1;
}
int sock = socket(AF_INET,SOCK_STREAM,0);
if(sock < 0)
{
printf("socket error\n");
return 2;
}
struct sockaddr_in server_socket;
server_socket.sin_family = AF_INET;
server_socket.sin_port = htons(atoi(argv[2]));
server_socket.sin_addr.s_addr = inet_addr(argv[1]);
if(bind(sock,(struct sockaddr*)&server_socket,sizeof(server_socket)) < 0)
{
printf("bind error\n");
return 3;
}
if(listen(sock,5) < 0)
{
printf("listen error\n");
return 4;
}
printf("bind and listen is success,please wait accept...\n");
while(1)
{
struct sockaddr_in client_socket;
socklen_t len = sizeof(client_socket);
int client_sock = accept(sock,(struct sockaddr *)&client_socket,&len);
if(client_sock < 0)
{
printf("accept error\n");
continue;
}
pthread_t tid = 0;
Arg *arg = (Arg *)malloc(sizeof(Arg));
arg->fd = client_sock;
arg->addr = client_socket;
pthread_create(&tid,NULL,createworker,(void *)arg);//
pthread_detach(tid);
}
close(sock);
return 0;
}
client.c
#include <stdio.h>
#include <unistd.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <string.h>
#include <errno.h>
#include <netinet/in.h>
#include <arpa/inet.h>
int main(int argc,char *argv[])
{
if(argc != 3)
{
printf("usage is ./client IP PORT\n");
return 1;
}
int sock = socket(AF_INET,SOCK_STREAM,0);
if(sock < 0)
{
printf("socket errno\n");
return 2;
}
struct sockaddr_in server_sock;
bzero(&server_sock,sizeof(server_sock));
server_sock.sin_family = AF_INET;
server_sock.sin_port = htons(atoi(argv[2]));
server_sock.sin_addr.s_addr = inet_addr(argv[1]);
int ret = connect(sock,(struct sockaddr*)&server_sock,sizeof(server_sock));
if(ret < 0)
{
printf("connect is error\n");
return 3;
}
printf("connect is success\n");
while(1)
{
char buf[1024] = {0};
printf("client #:");
fgets(buf,sizeof(buf),stdin);
buf[sizeof(buf)] = '\0';
write(sock,buf,strlen(buf));
printf("please wait...\n");
read(sock,buf,sizeof(buf));
printf("server $:%s\n",buf);
}
close(sock);
return 0;
}
结果演示