/*?P2P?程序客戶端
?*?
?*?文件名：P2PClient.c
?*
?*?日期：2004-5-21
?*
?*?作者：shootingstars（zhouhuis22@sina.com）
?*
?*/

#pragma?comment（lib“ws2_32.lib“）

#include?“windows.h“
#include?“..\proto.h“
#include?“..\Exception.h“
#include?
#include?
using?namespace?std;

UserList?ClientList;


#define?COMMANDMAXC?256
#define?MAXRETRY????5

SOCKET?PrimaryUDP;
char?UserName[10];
char?ServerIP[20];

bool?RecvedACK;
//初始化SOCKET
void?InitWinSock（）
{
	WSADATA?wsaData;

	if?（WSAStartup（MAKEWORD（2?2）?&wsaData）?!=?0）
	{
		printf（_T（“初始化Socket?失敗\r\n“））;
		throw?Exception（““）;
	}
	else{
		printf（“Using?%s?（Status:?%s）\n“
			wsaData.szDescription?wsaData.szSystemStatus）;
		printf（“with?API?versions?%d.%d?to?%d.%d\n\n“
			LOBYTE（wsaData.wVersion）?HIBYTE（wsaData.wVersion）
			LOBYTE（wsaData.wHighVersion）?HIBYTE（wsaData.wHighVersion））;
	}
}

SOCKET?mksock（int?type）
{
	SOCKET?sock?=?socket（AF_INET?type?0）;
	if?（sock?	{
????????printf（“create?socket?error“）;
		throw?Exception（““）;
	}
	return?sock;
}

stUserListNode?GetUser（char?*username）
{
	for（UserList::iterator?UserIterator=ClientList.begin（）;
						UserIterator!=ClientList.end（）;
							++UserIterator）
	{
		if（?strcmp（?（（*UserIterator）->userName）?username）?==?0?）
			return?*（*UserIterator）;
	}
	throw?Exception（“not?find?this?user“）;
}
//綁定地址信息
void?BindSock（SOCKET?sock）
{
	sockaddr_in?sin;
	sin.sin_addr.S_un.S_addr?=?INADDR_ANY;
	sin.sin_family?=?AF_INET;
	sin.sin_port?=?0;
	
	if?（bind（sock?（struct?sockaddr*）&sin?sizeof（sin））?		throw?Exception（“bind?error“）;
}
//發送和接收信息
void?ConnectToServer（SOCKET?sockchar?*username?char?*serverip）
{
	sockaddr_in?remote;
	remote.sin_addr.S_un.S_addr?=?inet_addr（serverip）;
	remote.sin_family?=?AF_INET;
	remote.sin_port?=?htons（SERVER_PORT）;
	
	stMessage?sendbuf;
	sendbuf.iMessageType?=?LOGIN;
	strncpy（sendbuf.message.loginmember.userName?username?10）;

	sendto（sock?（const?char*）&sendbuf?sizeof（sendbuf）?0?（const?sockaddr*）&remotesizeof（remote））;

	int?usercount;
	int?fromlen?=?sizeof（remote）;
	int?iread?=?recvfrom（sock?（char?*）&usercount?sizeof（int）?0?（sockaddr?*）&remote?&fromlen）;
	if（iread<=0）
	{
		throw?Exception（“Login?error\n“）;
	}

	//?登錄到服務端后，接收服務端發來的已經登錄的用戶的信息
	cout<<“Have?“<	for（int?i?=?0;i	{
		stUserListNode?*node?=?new?stUserListNode;
		recvfrom（sock?（char*）node?sizeof（stUserListNode）?0?（sockaddr?*）&remote?&fromlen）;
		ClientList.push_back（node）;
		cout<<“Username:“<userName<		in_addr?tmp;
		tmp.S_un.S_addr?=?htonl（node->ip）;
		cout<<“UserIP:“<		cout<<“UserPort:“<port<		cout<<““<	}
}

void?OutputUsage（）
{
	cout<<“You?can?input?you?command:\n“
		<<“Command?Type:\“send\“\“exit\“\“getu\“\n“
		<<“Example?:?send?Username?Message\n“
		<<“??????????exit\n“
		<<“??????????getu\n“
		<

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2010-07-22?16:30??P2P\
?????文件?????????498??2004-05-21?21:58??P2P\Exception.h
?????目錄???????????0??2017-08-25?01:46??P2P\P2PClient\
?????目錄???????????0??2017-08-25?00:45??P2P\P2PClient\Backup\
?????文件?????????907??2004-05-22?08:47??P2P\P2PClient\Backup\P2PClient.sln
?????文件????????9903??2017-08-25?01:46??P2P\P2PClient\P2PClient.cpp
?????文件????????4324??2004-05-21?22:55??P2P\P2PClient\P2PClient.dsp
?????文件?????????541??2004-05-21?21:55??P2P\P2PClient\P2PClient.dsw
?????文件???????33792??2010-07-21?18:38??P2P\P2PClient\P2PClient.ncb
?????文件???????48640??2010-07-21?18:38??P2P\P2PClient\P2PClient.opt
?????文件????????1489??2010-07-21?18:32??P2P\P2PClient\P2PClient.plg
?????文件????????1070??2017-08-25?00:46??P2P\P2PClient\P2PClient.sln
?????文件????????8192??2004-05-22?09:24??P2P\P2PClient\P2PClient.suo
?????文件????????4361??2004-05-22?08:47??P2P\P2PClient\P2PClient.vcproj
?????文件????????6498??2017-08-25?00:49??P2P\P2PClient\P2PClient.vcxproj
?????文件?????????905??2017-08-25?00:46??P2P\P2PClient\P2PClient.vcxproj.filters
?????目錄???????????0??2017-08-25?00:38??P2P\P2PServer\
?????目錄???????????0??2017-08-25?00:38??P2P\P2PServer\Backup\
?????文件?????????907??2004-05-22?08:47??P2P\P2PServer\Backup\P2PServer.sln
?????文件????????5348??2010-07-22?14:06??P2P\P2PServer\P2PServer.cpp
?????文件????????4320??2004-05-21?22:55??P2P\P2PServer\P2PServer.dsp
?????文件?????????541??2004-05-21?21:51??P2P\P2PServer\P2PServer.dsw
?????文件???????50176??2010-07-22?15:22??P2P\P2PServer\P2PServer.ncb
?????文件???????54784??2010-07-22?15:22??P2P\P2PServer\P2PServer.opt
?????文件?????????252??2010-07-22?15:15??P2P\P2PServer\P2PServer.plg
?????文件????????1075??2017-08-25?00:38??P2P\P2PServer\P2PServer.sln
?????文件????????8192??2004-05-22?09:24??P2P\P2PServer\P2PServer.suo
?????文件????????4305??2004-05-22?08:47??P2P\P2PServer\P2PServer.vcproj
?????文件????????6286??2017-08-25?00:38??P2P\P2PServer\P2PServer.vcxproj
?????文件?????????905??2017-08-25?00:38??P2P\P2PServer\P2PServer.vcxproj.filters
?????文件???????72314??2010-07-22?16:29??P2P\Peer-to-Peer?（P2P）.txt
............此處省略3個文件信息