#include????//for?socket
#include???//for?socket
#include?		?//for?bzero
#include???//for?sockaddr_in
#include????????//for?errno
#include????//for
#include????????//for?printf
#include?
#include?
#include?
#include?
#include?
#include?
#include?
#include????????//for?mulu

#define?MAXBUF????1024
//#define?MYPORT????22222
//#define?IPADRESS??“127.0.0.1“
#define?MD5FILE???“temp.md5“??//定義存放md5值的文件
#define?TEMPFILE??“temp“?
#define?max（xy）??（（x>y）?1:0）
#define?PATHNAME??“/home/raohl/Desktop/client/client“
#define?LOGPATH???“/home/raohl/Desktop/client/client/log“
#define?LOGFILE?“client.log“

void?setdir（void）;											//工作環(huán)境配置
void?useage（void）;											//使用方法信息
void?getcurrenttime（void）;??								//獲取當(dāng)前時(shí)間
void?writelog（char?ptr[]）;??								//記錄日志
void?can_write（char?*filename）;?							//發(fā)送文件處理
void?handle_sock（int?socketchar?*filename）;			//socket處理
int?CreateDir（const???char???*sPathName）;??			//創(chuàng)建目錄
int?getfilemd5（char?*md5valuechar?*filename）;		//獲取md5
int?getlasttime（char?*filelasttimechar?*filename）;//獲取文件最新更新時(shí)間

int?main（int?argcchar?**argv）
{
	struct?sockaddr_in?dest;//與服務(wù)器連接
	int?sockfd;//監(jiān)聽sock
	int?len;
	char?server_ip[30];
	char?filename[200];
	struct?stat?tfile;
	unsigned?int?server_port;
	char?buffer[MAXBUF+1];	
	if?（argc?!=?4）
	{
		?useage（）;//help?info
	????printf（“error?formatit?must?be:\n\t\t%s?IP?port?filename\n“argv[0]）;
		?writelog（“Client?input?format?error!!\n“）;
	????exit（EXIT_FAILURE）;
	}
//獲取當(dāng)前時(shí)間
	?getcurrenttime（）;
//change?work?path
	?setdir（）;
//get?current?path?env	
	char?*p;
	p=getcwd（NULL128）;
	printf（“current?path?:%s\n“p）;
	free（p）;

	?bzero（server_ipsizeof（server_ip））;
????bzero（filenamesizeof（filename））;
	?strncpy（server_ip?argv[1]?strlen（argv[1]））;
????server_port?=?atoi（argv[2]）;
????strncpy（filename?argv[3]?strlen（argv[3]））;
//創(chuàng)建本地socket
	if?（（sockfd=socket（AF_INETSOCK_STREAM0））<0）
	{
	????perror（“SOCKET?no?exist“）;
		?writelog（“Client?Create?Socket?error!!\n?“）;
	????exit（errno）;
	}
	else
	????printf（“\n\t\t\t...File?Client?start?on...\n?Create?socket?success.?SOCKET=%d\n\r“sockfd）;

	bzero（&destsizeof（dest））;
	dest.sin_family=AF_INET;
	dest.sin_port=htons（atoi（argv[2]））;
	if?（inet_aton（argv[1]（struct?in_addr?*）?&dest.sin_addr.s_addr）==0）
	{//服務(wù)器的IP地址來自程序的參數(shù)，取決于服務(wù)器設(shè)置
		perror（“argv[1]“）;
		writelog（“Client?input?IP?error!!\n“）;
		exit（errno）;
	}
//發(fā)起連接
	if?（connect（sockfd?（struct?sockaddr?*）?&destsizeof（dest））==-1）
	{
		perror（“Connect!!!error!!!\n“）;
		writelog（“Client?connect?server?error!!\n“）;
		exit（errno）;
	}
	printf（“?Server??Already?Connected!!?Waiting...\n“）;

//文件名發(fā)送給服務(wù)器
	bzero（buffersizeof（buffer））;
???sprintf（buffer“%s“filename）;
	writelog（“\n文件下載判斷中.......\n“）;
	send（sockfdbufferstrlen（buffer）0）;

//?接收md5和最近文件的更新時(shí)間
	bzero（buffersizeof（buffer））;
	if（（recv（sockfdbufferMAXBUF0））<=0）
	{
			writelog（“The?s

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----

?????文件???????9491??2012-08-08?11:10??server.c

?????文件???????9346??2012-08-07?14:22??client.c

-----------?---------??----------?-----??----

????????????????18837????????????????????2