SOCKETS

Hello,

I'm at the end with my knowledge. In cradle and in emulator it is possible
to connect and to load the file but via GPRS it isn't. recv returns -1

please help please help

thanks in advance


WSADATA WSAData;
hostent *h = NULL;
SOCKET s = INVALID_SOCKET;
sockaddr_in name;
try
{
if(0 != WSAStartup(0x0101,&WSAData))
throw(_T("WSAStartup(0x0101,&WSAData))"));
/*wchar_t x[51];
wsprintf(x,_T("%i"),WSAData.wVersion);
SetDlgItemText(IDC_STATIC1,x);*/

hostent *h = gethostbyname("www.pilskills.de");
if(NULL == h)
throw(_T("could not resolve hostname"));



s = socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
if(INVALID_SOCKET == s)
throw(_T("socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);"));

name.sin_port = htons(80);
name.sin_family = AF_INET;
memcpy(&name.sin_addr.S_un.S_addr,h->h_addr_list[0],sizeof(4));

if(0 != connect(s,(SOCKADDR*) &name, sizeof(name)))
throw(_T("connect(s,(SOCKADDR*) &name, sizeof(name))"));

if(SOCKET_ERROR == send(s, "GET /index.html\r\n\r\n",sizeof("GET
/index.HTML\r\n\r\n"),0))
throw(_T("send(s, \"GET /index.HTML\r\n\r\n\",sizeof(\"GET
/index.HTML\r\n\r\n\")"));

char recvBuf[1000];
int bytesRecv = -99;
bytesRecv = recv(s,recvBuf,sizeof(recvBuf),0);

wchar_t z[101];
wsprintf(z,_T("bytesRecv %i"),bytesRecv);
SetDlgItemText(IDC_STATIC1,z);
WriteToLog(recvBuf);



if(0 != shutdown(s,0))
throw(_T("shutdown(s,SD_BOTH))"));

if(0 != closesocket(s))
throw(_T("closesocket()"));


if(0 != WSACleanup())
throw(_T("WSACleanup()"));
}
catch(wchar_t *except)
{

SetDlgItemText(IDC_STATIC1,except);
}
catch(...)
{
SetDlgItemText(IDC_STATIC1,_T("unhandled exception"));
}

Trevor
Thu Apr 28 16:26:25 CDT 2005

If you read the MSDN documentation for recv, it says that the function will
return SOCKET_ERROR (which happens to be -1). It then goes on to say that
you can call WSAGetLastError to find out more information. I recommend you
do this in your code and report the error WSAGetLastError returns. You can
see the error codes that recv returns online
(http://msdn.microsoft.com/library/default.asp?url=/library/en-us/winsock/wi
nsock/recv_2.asp) or you can just type in the WSAGetLastError in the "Error
Lookup" tool that comes with VC++. If you still need help you can post your
error#.

"Sylvester" <lists_sebastian@yahoo.de> wrote in message
news:%23ZmPYJATFHA.2560@TK2MSFTNGP09.phx.gbl...
> Hello,
>
> I'm at the end with my knowledge. In cradle and in emulator it is possible
> to connect and to load the file but via GPRS it isn't. recv returns -1
>
> please help please help
>
> thanks in advance
>
>
> WSADATA WSAData;
> hostent *h = NULL;
> SOCKET s = INVALID_SOCKET;
> sockaddr_in name;
> try
> {
> if(0 != WSAStartup(0x0101,&WSAData))
> throw(_T("WSAStartup(0x0101,&WSAData))"));
> /*wchar_t x[51];
> wsprintf(x,_T("%i"),WSAData.wVersion);
> SetDlgItemText(IDC_STATIC1,x);*/
>
> hostent *h = gethostbyname("www.pilskills.de");
> if(NULL == h)
> throw(_T("could not resolve hostname"));
>
>
>
> s = socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
> if(INVALID_SOCKET == s)
> throw(_T("socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);"));
>
> name.sin_port = htons(80);
> name.sin_family = AF_INET;
> memcpy(&name.sin_addr.S_un.S_addr,h->h_addr_list[0],sizeof(4));
>
> if(0 != connect(s,(SOCKADDR*) &name, sizeof(name)))
> throw(_T("connect(s,(SOCKADDR*) &name, sizeof(name))"));
>
> if(SOCKET_ERROR == send(s, "GET /index.html\r\n\r\n",sizeof("GET
> /index.HTML\r\n\r\n"),0))
> throw(_T("send(s, \"GET /index.HTML\r\n\r\n\",sizeof(\"GET
> /index.HTML\r\n\r\n\")"));
>
> char recvBuf[1000];
> int bytesRecv = -99;
> bytesRecv = recv(s,recvBuf,sizeof(recvBuf),0);
>
> wchar_t z[101];
> wsprintf(z,_T("bytesRecv %i"),bytesRecv);
> SetDlgItemText(IDC_STATIC1,z);
> WriteToLog(recvBuf);
>
>
>
> if(0 != shutdown(s,0))
> throw(_T("shutdown(s,SD_BOTH))"));
>
> if(0 != closesocket(s))
> throw(_T("closesocket()"));
>
>
> if(0 != WSACleanup())
> throw(_T("WSACleanup()"));
> }
> catch(wchar_t *except)
> {
>
> SetDlgItemText(IDC_STATIC1,except);
> }
> catch(...)
> {
> SetDlgItemText(IDC_STATIC1,_T("unhandled exception"));
> }
>
>

Sylvester
Fri Apr 29 04:14:30 CDT 2005

I thought something is wrong with my code.....! WSAGetLastError() returns
10054 which means that the connection was reseted by peer.

But the same server is connectable over ssl and I can connect through ssl
successful. Another thing I'm experiencing is that on MDA2 it is posible to
connect over port 80 and on MDA3 it isn't.
But I think the MDA series is only for the german market, so it might be
difficult to get help.

Please help, it is very important

thanks in advance

regards Sylvester

"Trevor" <trevor@spam.com> schrieb im Newsbeitrag
news:Oldu0jDTFHA.3040@TK2MSFTNGP10.phx.gbl...
> If you read the MSDN documentation for recv, it says that the function
will
> return SOCKET_ERROR (which happens to be -1). It then goes on to say that
> you can call WSAGetLastError to find out more information. I recommend
you
> do this in your code and report the error WSAGetLastError returns. You
can
> see the error codes that recv returns online
>
(http://msdn.microsoft.com/library/default.asp?url=/library/en-us/winsock/wi
> nsock/recv_2.asp) or you can just type in the WSAGetLastError in the
"Error
> Lookup" tool that comes with VC++. If you still need help you can post
your
> error#.
>
> "Sylvester" <lists_sebastian@yahoo.de> wrote in message
> news:%23ZmPYJATFHA.2560@TK2MSFTNGP09.phx.gbl...
> > Hello,
> >
> > I'm at the end with my knowledge. In cradle and in emulator it is
possible
> > to connect and to load the file but via GPRS it isn't. recv returns -1
> >
> > please help please help
> >
> > thanks in advance
> >
> >
> > WSADATA WSAData;
> > hostent *h = NULL;
> > SOCKET s = INVALID_SOCKET;
> > sockaddr_in name;
> > try
> > {
> > if(0 != WSAStartup(0x0101,&WSAData))
> > throw(_T("WSAStartup(0x0101,&WSAData))"));
> > /*wchar_t x[51];
> > wsprintf(x,_T("%i"),WSAData.wVersion);
> > SetDlgItemText(IDC_STATIC1,x);*/
> >
> > hostent *h = gethostbyname("www.pilskills.de");
> > if(NULL == h)
> > throw(_T("could not resolve hostname"));
> >
> >
> >
> > s = socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
> > if(INVALID_SOCKET == s)
> > throw(_T("socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);"));
> >
> > name.sin_port = htons(80);
> > name.sin_family = AF_INET;
> > memcpy(&name.sin_addr.S_un.S_addr,h->h_addr_list[0],sizeof(4));
> >
> > if(0 != connect(s,(SOCKADDR*) &name, sizeof(name)))
> > throw(_T("connect(s,(SOCKADDR*) &name, sizeof(name))"));
> >
> > if(SOCKET_ERROR == send(s, "GET /index.html\r\n\r\n",sizeof("GET
> > /index.HTML\r\n\r\n"),0))
> > throw(_T("send(s, \"GET /index.HTML\r\n\r\n\",sizeof(\"GET
> > /index.HTML\r\n\r\n\")"));
> >
> > char recvBuf[1000];
> > int bytesRecv = -99;
> > bytesRecv = recv(s,recvBuf,sizeof(recvBuf),0);
> >
> > wchar_t z[101];
> > wsprintf(z,_T("bytesRecv %i"),bytesRecv);
> > SetDlgItemText(IDC_STATIC1,z);
> > WriteToLog(recvBuf);
> >
> >
> >
> > if(0 != shutdown(s,0))
> > throw(_T("shutdown(s,SD_BOTH))"));
> >
> > if(0 != closesocket(s))
> > throw(_T("closesocket()"));
> >
> >
> > if(0 != WSACleanup())
> > throw(_T("WSACleanup()"));
> > }
> > catch(wchar_t *except)
> > {
> >
> > SetDlgItemText(IDC_STATIC1,except);
> > }
> > catch(...)
> > {
> > SetDlgItemText(IDC_STATIC1,_T("unhandled exception"));
> > }
> >
> >
>
>