[Dev-C++] problem with getserv getservbyname

[Marcelo T. G. <mar...@gm...>]

Hello, I'm new to the list. I'm trying to use the function getservbyname, with the following code

#include <cstdlib>
#include <iostream>
#include <string>
#include <winsock2.h>
struct servent *ptr;
using namespace std;
int main(int argc, char *argv[])
{
    char *cadena[4]={"ftp","http","smtp","pop3"};
    for(int i=0;i<4;i++)
          {
            ptr=getservbyname(cadena[i],"tcp");
            printf("%s",ptr->s_name);cout<<endl;
            };
    system("PAUSE");
    return EXIT_SUCCESS;
}


I have no problem compiling, but enforcement can not print anything with it, then get a window, where he says he has encountered a problem and therefore must be closed.The code runs with dev c ++ 4.9.9.2 under win xp sp3. I appreciate if someone can help me. Thanks in advance for reading

Regards

Marcelo