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服务器端：

Lsd.h

#ifndef _LSD_H_

#define _LSD_H_

#include

#define TYPE_LOGIN 0 //鐧诲綍鏁版嵁鍖? #define TYPE_REG 1 //娉ㄥ唽鏁版嵁鍖? #define TYPE_MSG 2 //娑堟伅鏁版嵁鍖? #define TYPE_HEART 3 //蹇冭烦鏁版嵁鍖? #define TYPE_CMD 4 //鍛戒护鏁版嵁鍖? //#define TYPE_END 5

struct packet

{

int data_type;

int size;

char *data;

};

struct client

{

int state;

char client_name[9];

char passwd[9];

struct client *next;

};

int check_login(char *str);

struct sockaddr_in ip_port();

void client_pthread(int newsock);

void heart(char *ipbuf);

void browse(int newsock, char *str);

struct client *creat_user(struct client *head);

void write_user(struct client *head);

void Free(struct client *head);

int login(int sockfd, char *str);

void regis_file(char *str);

void registion(int sockfd, char *str);

void writebuf(char *string);

struct packet unpack(int sockfd, struct packet server); void signal();

int execmd(const char *cmd, int newsock);

#endif

Server.c:

#include "lsd.h"

time_t newtime;

time_t oldtime;

struct client *head = NULL; //鍏ㄥ眬閾捐〃澶存寚閽?

/* 涓诲嚱鏁?*/

int main()

{

int sockfd = -1;

int newsock = -1;

int ret = -1;

int len;

char ipbuf[20];

char buf[100];

pthread_t tid;

struct sockaddr_in serveraddr;

struct sockaddr_in cliaddr;

head = creat_user(head); //寤虹珛鍏ㄥ眬閾捐〃

newtime = time(NULL);

oldtime = time(NULL);

/* 寤虹珛濂楁帴瀛?*/

sockfd = socket(AF_INET, SOCK_STREAM, 0);

if (sockfd < 0)

{

perror("socket");

exit(0);

}

/* 缁欏鎺ュ瓧璧嬩簣鍦板潃鍜岀鍙?*/

serveraddr = ip_port();

ret = bind(sockfd, (struct sockaddr *)&serveraddr, sizeof(serveraddr));

if (ret < 0)

{

perror("bind");

exit(0);

}

/* 缁欓摼鎺ユ帓闃?*/

ret = listen(sockfd, 5);

if (ret < 0)

{

perror("listen");

exit(1);

}

/* 鎺ュ彈缃戠粶閾炬帴*/

while (1)

{

len = sizeof(cliaddr);

newsock = accept(sockfd, (struct sockaddr *)&cliaddr, &len);

if (newsock < 0)

{

perror("accept");

exit(0);

}

/* 灏?杩涘埗缃戠粶鍦板潃杞崲鎴愬瓧绗︿覆缃戣矾鍦板潃*/

inet_ntop(AF_INET, &cliaddr.sin_addr.s_addr, ipbuf, sizeof(ipbuf));

/* 鏈嶅姟鍣ㄦ樉绀哄苟鍐欏叆鏃ュ織鏂囦欢*/

time_t t;

time(&t);

char *tm = ctime(&t);

sprintf(buf, "IP:[%s] STATE: Connected TIME: %s", ipbuf, tm);

printf("%s", buf);

writebuf(buf);

ret = pthread_create(&tid, NULL, (void *)client_pthread, (void *)newsock);