send.h

DES写的文件加密软件,可以用于对整个文件进行加密并且设定加密密码来网络传输!

#include <windows.h>
#include <winsock.h>
#include <commctrl.h>
#include "transfer.h"

#pragma comment(lib,"Ws2_32")
char szRecvPath[MAX_PATH];
char szSendPath[MAX_PATH];
SOCKET SSever;
SOCKET SClient;

BOOL CALLBACK DlgSendProc(
						  HWND hwnd,  // handle to dialog box
						  UINT uMsg,     // message
						  WPARAM wParam, // first message parameter
						  LPARAM lParam  // second message parameter
						  );


bool Sever(HWND hwnd)
{
	WSADATA ws;
	WSAStartup(MAKEWORD(2,2),&ws);
	SOCKET SockSever=socket(AF_INET,SOCK_STREAM,0);
	struct sockaddr_in my_addr,their_addr;
	my_addr.sin_port=htons(830);
	my_addr.sin_addr.S_un.S_addr=INADDR_ANY;
	my_addr.sin_family=AF_INET;
	if(bind(SockSever,(struct sockaddr*)&my_addr,sizeof(struct sockaddr)))
	{
		MessageBox(NULL,"绑定失败","",MB_OK);
		return false;
	}
	if(listen(SockSever,10))
	{
		MessageBox(NULL,"监听失败","",MB_OK);
		return false;
	}
	SetWindowText(hwnd,"正在监听……");
	int size=sizeof(struct sockaddr_in);
	SSever=accept(SockSever,(struct sockaddr*)&their_addr,&size);

 	return true;
	
}

bool Client(DWORD IpAddr)
{

	WSADATA ws;
	WSAStartup(MAKEWORD(2,2),&ws);
	SClient=socket(AF_INET,SOCK_STREAM,0);
	struct sockaddr_in their_addr;
	their_addr.sin_addr.S_un.S_addr=IpAddr;
	their_addr.sin_family=AF_INET;
	their_addr.sin_port=htons(830);
	if(connect(SClient,(struct sockaddr *)&their_addr,sizeof(struct sockaddr)))
	{
		MessageBox(NULL,"连接失败","",MB_OK);
		return false;
	}
	return true;

}
DWORD WINAPI SeverThread(
  LPVOID lpParameter  
)
{

	HWND hwnd=FindWindow(NULL,"Transfer");
	if(!Sever(hwnd))
		return 0;
	if(INVALID_SOCKET==SSever)
	{
		MessageBox(hwnd,"接受连接失败","警告",MB_OK);
	}
	SaveFileDlg(hwnd,szRecvPath);
	RecvFile(szRecvPath,SSever);
	return 1;
}

DWORD WINAPI ClientThread(
  LPVOID lpParameter  
)
{
	HWND hwnd=FindWindow(NULL,"Transfer");
	
//	SOCKET sock;
	DWORD dwAddress=0,dwAddr1=0,dwAddr2=0,dwAddr3=0,dwAddr4=0;
	HWND hwndctrl=NULL;
	hwndctrl=GetDlgItem(hwnd,IDC_IPADDRESS);
	if(hwndctrl)
		SendMessage(hwndctrl, IPM_GETADDRESS, 0, (LPARAM)&dwAddress);
	else 
		return 1;
		if(!dwAddress)
		{
			MessageBox(hwnd,"请输入IP地址","警告",MB_OK);
			return 1;
		}
	OpenFileDlg(hwnd,szSendPath);
	dwAddr1=dwAddress>>24;
	dwAddr4=dwAddress<<24;
	DWORD dwAddress2=dwAddress&0x00ff0000;
	dwAddr2=dwAddress2>>8;
	dwAddr3=(dwAddress&0x0000ff00)<<8;
	dwAddress=dwAddr1+dwAddr2+dwAddr3+dwAddr4;
	if(!Client(dwAddress))
		return 1;

	SendFile(szSendPath,SClient);

	return 0;


}