#define _GNU_SOURCE

#include <sys/socket.h>
#include <netdb.h>

int gethostbyname_r(const char* name,
                    struct hostent* h,
                    char* buf,
                    size_t buflen,
                    struct hostent** res,
                    int* err) {
  return gethostbyname2_r(name, AF_INET, h, buf, buflen, res, err);
}