Unicode C++
Unicode C++
Bind and Listen on an Available Port in a Range
See more Socket/SSL/TLS Examples
Demonstrates Socket.BindAndListenPortRange, which searches an inclusive port range for an available TCP port, binds it, and begins listening. It returns the selected port, or -1 on failure.
Background. This is useful when any of several ports is acceptable and the application needs to discover which one was bound.
Chilkat Unicode C++ Downloads
#include <CkSocketW.h>
void ChilkatSample(void)
{
CkSocketW socket;
// Search the inclusive port range for an available TCP port, bind it, and begin listening. The
// method returns the selected port, or -1 when no port can be bound.
int boundPort = socket.BindAndListenPortRange(5000,5100,25);
if (boundPort < 0) {
wprintf(L"%s\n",socket.lastErrorText());
return;
}
wprintf(L"Listening on port %d\n",boundPort);
}