detect.cpp

Go to the documentation of this file.

/*
 * detect.cpp
 *
 * Basic host detection
 */

// includes --------------------------------------------------------------------
#include <iostream>

#include "common/wave_ex.h"
#include "netlib/wavesock.h"
#include "perf/perf.h"



////////////////////////////////////////////////////////////////////////////////
//
//      static helper methods
//
////////////////////////////////////////////////////////////////////////////////

static void
throwError
(
IN const char * msg
)
{
        ASSERT(msg, "null");

        const int bufsize = 1024;
        char buffer[bufsize];

        netlib::wsGetErrorMessage(buffer, bufsize);

        WAVE_EX(wex);
        wex << msg << "\n";
        wex << buffer;
}



static void
doDetect
(
void
)
{
        const int bufSize = 1023;
        char buffer[bufSize + 1];

        if (gethostname(buffer, bufSize)) {
                throwError("failed to get host name");
        }

        DPRINTF("Host name: %s", buffer);

        netlib::map_ip_addr_t ips;
        getLocalInterfaces(ips);
        DPRINTF("Found %d local interfaces", (int) ips.size());
        for (netlib::map_ip_addr_t::const_iterator i = ips.begin();
             i != ips.end(); ++i) {
                const char * name = i->first.c_str();
                const netlib::ip_addr_t& ip = i->second;
                ip.dump(name);
        }
}



////////////////////////////////////////////////////////////////////////////////
//
//      entry point
//
////////////////////////////////////////////////////////////////////////////////

int
main
(
IN int argc,
IN const char * argv[]
)
{
        // ASSERT(1 == argc, "Usage: netlib-detect");
        int retval = 0;
        try {
                perf::Timer timer("overall timer");
                doDetect();
        } catch (std::exception& e) {
                DPRINTF("EXCEPTION: %s", e.what());
                retval = 1;
        }

        perf::dumpTimingSummary(std::cerr);
        return 0;
}