1.创建socket套接字
structaddrinfohints, *res =NULL, *aip =NULL;
hints.ai_family=AF_UNSPEC;
if(bIsUDP)
{
hints.ai_socktype=SOCK_DGRAM;
hints.ai_protocol=IPPROTO_UDP;
}
else
{
hints.ai_socktype=SOCK_STREAM;
hints.ai_protocol=IPPROTO_TCP;
}
将ip转化为地址结构体
in_addr addr = {0};
intret =inet_pton(AF_INET, pHost, &addr);
//创建socket
if(ret >0) {
hSocket =socket(AF_INET, hints.ai_socktype, hints.ai_protocol);
if(-1== hSocket) {
returnhSocket;
}
／／绑定服务器地址
sockaddr_inbind_addr = {0};
bind_addr.sin_family=AF_INET;
bind_addr.sin_addr= addr;
nRet=::bind(hSocket,(conststructsockaddr*)&bind_addr,sizeof(bind_addr));
／／设置socket接受／发送参数
structlinger ling;
ling.l_linger=0;
ling.l_onoff=1;
nRel =setsockopt(hSocket,SOL_SOCKET,SO_LINGER, (char*)&ling,sizeof(ling));
／／设置接受和发送buffer大小
intnRcvBufSize =512*1024;
nRel=setsockopt(hSocket,SOL_SOCKET,SO_RCVBUF,(char*)&nRcvBufSize,sizeof(nRcvBufSize));
intnSendBufSize =512*1024;
nRel=setsockopt(hSocket,SOL_SOCKET,SO_SNDBUF, (char*)&nSendBufSize,sizeof(nSendBufSize));
／／设置socket是否是阻塞模式 设置0为非阻塞 1为阻塞
SetSocketBlock(hSocket,0);
／／连接
sockaddr_inskAddr = {0};
skAddr.sin_family=AF_INET;
skAddr.sin_addr= addr;
skAddr.sin_port=htons(nPort);
nConnectRet=connect(hSocket, (sockaddr*)&skAddr,sizeof(skAddr));
／／设置select超时等socket事件
fd_setfdwrite;
fd_setfdread;
fd_setfdexcept;
FD_ZERO(&fdwrite);
FD_ZERO(&fdread);
FD_ZERO(&fdexcept);
FD_SET(fd,&fdwrite);
FD_SET(fd,&fdread);
FD_SET(fd,&fdexcept);
__int64t1 =GetTickCount();
__int64t2 = nTimeOut *1000;
structtimevaltimeout;
timeout.tv_sec=0;
timeout.tv_usec=500*1000;
while(1)
{
intret =select(fd+1,&fdread,&fdwrite,&fdexcept,&timeout);
if(ret == -1)
{
return-3000002;
}
if(ret >0)
{
if(FD_ISSET(fd,&fdread))
{
interror;
socklen_tlen =sizeof(error);
ret =getsockopt(fd,SOL_SOCKET,SO_ERROR, &error, &len);
fLog(FC_LOG_Major,"CCSInf: socketCanReadWrite, fdread ret=%d", ret);
if(ret <0)
return-1;
return0;
}
elseif(FD_ISSET(fd,&fdwrite))
{
interror;
socklen_tlen =sizeof(error);
ret =getsockopt(fd,SOL_SOCKET,SO_ERROR, &error, &len);
if(ret <0)
return-1;
return0;
}
elseif(FD_ISSET(fd,&fdexcept))
{
fLog(FC_LOG_Major,"CCSInf: socketCanReadWrite, fdexcept ret=%d", -3000003);
return-3000003;
}
}
if((GetTickCount() - t1 > t2))break;
Sleep(10);
}
／／ssl设置写
nHaveWrite=0;
while((nHaveWrite
{
if(m_sockfd!=-1)
{
／*设置select超时事件*／
}
else
{
return-2110001;
}
if(nErrorCode!=0)
{
close(m_sockfd);
m_sockfd=-1;
return-2110002;
}
char*pWritePos=pMsg+nHaveWrite;
intret = -1;
ret =SSL_write(m_pssl, (void*)pWritePos, nLen - nHaveWrite);
if(ret<=0)
{
interr =SSL_get_error(m_pssl,ret);
Reset();
return-2110003;
}
nHaveWrite+=ret;
}
／／收数据
std::stringbuf(10240,0);
intnTotal=buf.size();
intnRecvTotal =0;
out.clear();
do
{
if(m_sockfd!=-1)
{
／*设置select超时事件*／
}
else
{
return-2110001;
}
if(nErrorCode!=0)
{
close(m_sockfd);
m_sockfd=-1;
return-2110002;
}
intret = -1;
ret =SSL_read(m_pssl, &buf[0], nTotal - nRecvTotal);
if(0== ret)break;
if(ret >0)
{
buf[ret] =0;
nRecvTotal += ret;
if(nRecvTotal >= nTotal) {
out.append(buf.c_str());
buf.clear();
buf.resize(10*1024);
nTotal += buf.size();
continue;
}
out.append(buf.begin(), buf.begin() + ret);
if(out.rfind("") !=std::string::npos)break;
}else{
}
}while((nRecvTotal < nTotal) && (bExit ==false));