www.pudn.com > vc-ftp.rar > MultiThreadDealScoket.cpp

//--------------------------------------------------------------------------- 
 
 
#pragma hdrstop 
 
#include "MultiThreadDealScoket.h" 
 
//--------------------------------------------------------------------------- 
 
#pragma package(smart_init) 
__fastcall  MultiThreadDealSocket::MultiThreadDealSocket() 
{ 
 
} 
SOCKET __fastcall MultiThreadDealSocket::GetConnect(String host ,int port) 
{ 
    SOCKET client; 
    WORD version; 
    SOCKADDR_IN sockStruct; 
    version = MAKEWORD(2,2); 
    WSADATA wsaData; 
    int err = WSAStartup(version, &wsaData ); 
    if ( err != 0 ) { 
        return NULL; 
      } 
    client = socket(PF_INET,SOCK_STREAM,0); 
    DWORD dwip; 
    if((dwip=inet_addr(host.c_str()))==INADDR_NONE) //如果是ip地址 
    { 
	struct hostent *hp = NULL; 
	if ((hp = gethostbyname(host.c_str())) != NULL) 
	{ 
		memcpy(&(sockStruct.sin_addr), hp->h_addr, hp->h_length); 
		sockStruct.sin_family = hp->h_addrtype; 
		//sockStruct.sin_family = AF_INET; 
	       //	TRACE("sockaddr.sin_addr = %s\n", inet_ntoa(sockStruct.sin_addr)); 
	} 
	else 
	{ 
		//TRACE("gethostbyname() failed: %d\n", 
		WSAGetLastError(); 
		return NULL ; 
	} 
    } 
    else 
    { 
		sockStruct.sin_family=AF_INET; //使用TCP/IP协议 
		sockStruct.sin_addr.S_un.S_addr = dwip; 
    } 
   sockStruct.sin_port = htons(port); 
   if(connect(client,(LPSOCKADDR)&sockStruct,sizeof(sockStruct)) == SOCKET_ERROR) 
    { 
       return NULL ; 
    } 
    return client; 
} 
String __fastcall MultiThreadDealSocket::GetHost(String pasvStr) 
{ 
    int index = pasvStr.Pos("("); 
    String str = pasvStr.SubString(index+1,pasvStr.Length() - index); 
    String temp; 
    for(int i =0 ; i < 4 ;i ++) 
    { 
           index = str.Pos(","); 
            temp += str.SubString(1,index-1)+"."; 
      str = str.SubString(index+1,str.Length() -index); 
    } 
    temp = temp.SubString(1,temp.Length()-1) ; 
    return temp; 
} 
int __fastcall MultiThreadDealSocket::GetPort(String pasvStr) 
{ 
   int index = pasvStr.Pos("("); 
    String str = pasvStr.SubString(index+1,pasvStr.Length() - index); 
    String temp; 
    for(int i =0 ; i < 4 ;i ++) 
    { 
           index = str.Pos(","); 
           str = str.SubString(index+1,str.Length() -index); 
    } 
    index = str.Pos(","); 
    temp  = str.SubString(1,index-1); 
    str = str.SubString(index+1,str.Length()-index); 
    index  = str.Pos(")"); 
    str = str.SubString(1,index-1); 
    int ge,shi; 
    shi = StrToInt(temp);  ge = StrToInt(str); 
    return shi*256 + ge; 
}