#include <stdio.h>

/*!
  @brief    Returns one component of the OS version
  @param    component  1=major, 2=minor, 3=bugfix
 */
int GetOSVersionComponent(int component) {
    char cmd[64] ;
    sprintf(
            cmd,
            "sw_vers -productVersion | awk -F '.' '{print $%d}'",
            component
    ) ;
    FILE* stdoutFile = popen(cmd, "r") ;

    int answer = 0 ;
    if (stdoutFile) {
        char buff[16] ;
        char *stdout = fgets(buff, sizeof(buff), stdoutFile) ;
        pclose(stdoutFile) ;
        sscanf(stdout, "%d", &answer) ;
    }

    return answer ;
}


QString GetOSVersion()
{
    QString qsVersion = QString::number(GetOSVersionComponent(1)) + "."\
            + QString::number(GetOSVersionComponent(2)) + "."\
            + QString::number(GetOSVersionComponent(3));
    return qsVersion;
}