How to retrieve the result of netstat command

Question

I tried to get the list of opened ports in my PC in a c++ code.So, I want to use the DOS command netstat. I have written this line system("netstat -a") but I can't retrieve the result that it returns.

Answer 1

You can start with this code

int main() {
  char buf[10000];  
  FILE *p = _popen("netstat -a", "r");
  std::string s;
  for (size_t count; (count = fread(buf, 1, sizeof(buf), p));)
      s += string(buf, buf + count);
  cout<<s<<endl;    
  _pclose(p);  
}