Subversion Repositories 1g_ethernet_dpi

#include "ethlc.hpp"

/**

 * @brief   private: Execute Generic Shell Command

 *

 * @param[in]   command Command to execute.

 * @param[out]  output  Shell output.

 * @param[in]   mode read/write access

 *

 * @return 0 for success, 1 otherwise.

 *

*/

bool ethlc::exec_shell_cmd( const std::string&  command,

                            std::string&        output,

                            const std::string&  mode = "r")

{

    // Create the stringstream

    std::stringstream sout;

    // Run Popen

    FILE *in;

    char buff[512];

    // Test output

    if(!(in = popen(command.c_str(), mode.c_str()))){

        return 1;

    }

    // Parse output

    while(fgets(buff, sizeof(buff), in)!=NULL){

        sout << buff;

    }

    // Close

    int exit_code = pclose(in);

    // set output

    output = sout.str();

    // Return exit code

    return exit_code;

}

/**

 * @brief   public: Open-dev / class-constr /

 *

 * @param[in] address   dev IPv4-addr

 *

 * @return 0 for success, 1 otherwise.

 *

*/

ethlc::ethlc(const std::string& addr)

{

    // dec vars

    int code_sim, code_hw;

    std::string command;

    std::string details_sim, details_hw;

    // record addr

    address = addr;

    // ARPING it / sim

    command = "arping -c 1 " + address + " -I tap0"+ " 2>&1"; // !!!redirecting stderr to stdout

    code_sim = exec_shell_cmd(command, details_sim);

    // ARPING it / hw

    command = "arping -c 1 " + address + " -I eth0"+ " 2>&1"; // ..

    code_hw = exec_shell_cmd(command, details_hw);

    // final deal

    if ((code_hw != 0) && (code_sim != 0)) { // no device found

        std::cout << "no device found - 'ethlc::ethlc'" << std::endl;

        throw 7;

    } else {

        // if we are here - OK

        if (code_hw == -1) {

            details = details_sim;

        } else {

            details = details_hw;

        }

    }

}

/**

 * @brief   public: Close-dev / class-destr /

 *

 * @return 0 for success, 1 otherwise.

 *

*/

ethlc::~ethlc()

{

    // placeholder

}

/**

 * @brief   public: Work with dev

 *

 * @return 0 for success, 1 otherwise.

 *

*/

bool ethlc::ethlc_proc(void)

{

    // just PING it / ;)

    std::string command = "ping -c 1 " + address + " 2>&1"; // !!!redirecting stderr to stdout

    int code = exec_shell_cmd(command, details);

    return (code == 0);

}

/**

 * @brief   public: Out2usr detailes of shell output

 *

 * @param[out]  output  Shell output.

 *

*/

void ethlc::ethlc_gdet(std::string& pdetails)

{

    pdetails = details;

}