gethostname.cpp

#include <iostream>
#include <unistd.h>

int main()
{
    {
        char name [1024] = "";
        const int result = gethostname( name, sizeof name );
        std::cout << "result [" << result << "] name[" << name << "]" << std::endl;
    }
    
    {
        const long result = gethostid();
        std::cout << "result [" << result << "]" << std::endl;
    }
}