src/network/res_send.c

   1 #include <resolv.h>
   2 #include <string.h>
   3
   4 int __res_send(const unsigned char *msg, int msglen, unsigned char *answer, int anslen)
   5 {
   6         int r;
   7         if (anslen < 512) {
   8                 unsigned char buf[512];
   9                 r = __res_send(msg, msglen, buf, sizeof buf);
  10                 if (r >= 0) memcpy(answer, buf, r < anslen ? r : anslen);
  11                 return r;
  12         }
  13         r = __res_msend(1, &msg, &msglen, &answer, &anslen, anslen);
  14         return r<0 || !anslen ? -1 : anslen;
  15 }
  16
  17 weak_alias(__res_send, res_send);