I m having a significant problem using a standard BSD-style socket in a C++ program. In the code below, I connect to a local web server, send a request, and simply create a loop waiting for data to return. I actually do receive the data, but then I get an endless stream of 0-length data as if it was a non-blocking socket. The web server presumably didn t kill the connection, because if so I would have received a length of -1.
Please ignore simple typos I make below, as I m writing the code from memory, not a direct copy/paste. The code produces the same result on OSX and Windows.
int sock = socket(AF_INET, SOCK_STREAM, 0);
//assume serv_addr has been created correctly
connect(sock, (sockaddr*)&serv_addr, sizeof(serv_addr)) < 0);
std::string header = "GET / HTTP/1.1
"
"Host: 127.0.0.1:80
"
"Keep-Alive: 300
"
"Connection: keep-alive
";
send(sock, header.c_str(), header.length()+1, 0);
for (;;) {
char buffer[1024];
int len = recv(sock, buffer, 1024, 0);
cout << len << endl;
//this outputs two numbers around 200 and 500,
//which are the header and html, and then it
//outputs and endless stream of 0 s
}