A C library for asynchronous DNS requests (grpc依赖)
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/* Copyright 1998 by the Massachusetts Institute of Technology.
*
* Permission to use, copy, modify, and distribute this
* software and its documentation for any purpose and without
* fee is hereby granted, provided that the above copyright
* notice appear in all copies and that both that copyright
* notice and this permission notice appear in supporting
* documentation, and that the name of M.I.T. not be used in
* advertising or publicity pertaining to distribution of the
* software without specific, written prior permission.
* M.I.T. makes no representations about the suitability of
* this software for any purpose. It is provided "as is"
* without express or implied warranty.
*/
#include "ares_setup.h"
#include <stdlib.h>
#ifdef HAVE_NETDB_H
#include <netdb.h>
#endif
#include "ares.h"
#include "ares_private.h" /* for memdebug */
void ares_free_hostent(struct hostent *host)
{
char **p;
if (!host)
return;
free((char *)(host->h_name));
for (p = host->h_aliases; *p; p++)
free(*p);
free(host->h_aliases);
free(host->h_addr_list[0]); /* no matter if there is one or many entries,
there is only one malloc for all of them */
free(host->h_addr_list);
free(host);
}