Suggestion: include functions to free a result

Iñaki Baz Castillo ibc at aliax.net
Mon Feb 7 09:42:02 MSK 2011


2011/2/7 Iñaki Baz Castillo <ibc at aliax.net>:
> Wouldn't be great if udns provides functions to free  result? i.e:
> dns_free_rr_a4(struct dns_rr_a4 *). Just wondering.

However I'm very confused now. In my callback routine I try to free
the result and get a fatal error:

  static void dns_res_A_cb(struct dns_ctx *dns_context, struct
dns_rr_a4 *rr, void *data)
  {
      [...]
      free(rr->dnsa4_qname);
  }

It produces:

  *** glibc detected *** munmap_chunk(): invalid pointer: 0x0000000001b4e7d8 ***
  ======= Backtrace: =========
  /lib/libc.so.6(+0x774b6)[0x7fa9330314b6]


So I'm a bit lost here, why cannot I free the result? In fact my
application leaks, and IMHO it occurs because, for now, I don't free
the result.

Thanks a lot. Regards.


-- 
Iñaki Baz Castillo
<ibc at aliax.net>


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