int __res_send(const unsigned char *msg, int msglen, unsigned char *answer, int anslen)
{
int r = __res_msend(1, &msg, &msglen, &answer, &anslen, anslen);
- return r<0 ? r : anslen;
+ return r<0 || !anslen ? -1 : anslen;
}
weak_alias(__res_send, res_send);