Bluetooth socket not receiving data sent from client

[Vijay Rajanna]

HI, I'm using windows 7 , 64 bit os, and had written bluetooth server program running on this pc. This server will accept connections from clients , and display the text sent by clients. My issue is , Bluetooth server running on PC, is not receiving data sent from clients, but connection establishment is successful. What I mean is, after executing "recv(s2,(char*)buffer, sizeof(buffer), 0);" function call, the server is blocked indefinitely. Please let me know how this issue could be resolved.

#include "stdafx.h"
#include #include #include #include #pragma comment(lib, "Ws2_32.lib")
#pragma comment(lib, "irprops.lib")

TCHAR *GetLastErrorMessage(DWORD last_error)
{
static TCHAR errmsg[512];

if (!FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM,
0,
last_error,
0,
errmsg,
511,
NULL))
{
/* if we fail, call ourself to find out why and return that error */
return (GetLastErrorMessage(GetLastError()));
}
return errmsg;
}

int _tmain(int argc, _TCHAR* argv[])
{
WORD wVersionRequested = 0x202;
WSADATA m_data;

if (0 == WSAStartup(wVersionRequested, &m\_data))
{
	SOCKET s = socket(AF\_BTH, SOCK\_STREAM, BTHPROTO\_RFCOMM);

	const DWORD lastError = ::GetLastError();

	if (s == INVALID\_SOCKET)
	{
		printf("Failed to get bluetooth socket! %s\\n", GetLastErrorMessage(lastError));
		exit(1);
	}

	WSAPROTOCOL\_INFO protocolInfo;

	int protocolInfoSize = sizeof(protocolInfo);

	if (0 != getsockopt(s, SOL\_SOCKET, SO\_PROTOCOL\_INFO, (char\*)&protocolInfo, &protocolInfoSize))
	{
		exit(1);
	}

	SOCKADDR\_BTH address;

	address.addressFamily = AF\_BTH;
	address.btAddr = 0;
	address.serviceClassId = GUID\_NULL;
	address.port = BT\_PORT\_ANY;

	sockaddr \*pAddr = (sockaddr\*)&address;

	if (0 != bind(s, pAddr, sizeof(SOCKADDR\_BTH)))
	{
		printf("%s\\n", GetLastErrorMessage(GetLastError()));
	}
	else
	{
		printf("\\nBinding Successful....\\n");
		int length = sizeof(SOCKADDR\_BTH) ;
		getsockname(s,(sockaddr\*)&address,&length);
		wprintf (L"Local Bluetooth device is %04x%08x \\nServer channel = %d\\n", GET\_NAP(address.btAddr), GET\_SAP(address.btAddr), address.port);
	}

	int size = sizeof(SOCKADDR\_BTH);

	if (0 != getsockname(s, pAddr, &size))
	{
	printf("%s\\n", GetLastErrorMessage(GetLastError()));
	}

	if (0 != listen(s, 10))
	{
	printf("%s\\n", GetLastErrorMessage(GetLastError()));

[_Superman_]

Use SerialPortServiceClass_UUID for the serviceClassId parameter.

«_Superman_»  _I love work. It gives me something to do between weekends.

_Microsoft MVP (Visual C++)

Polymorphism in C