compat/freeaddrinfo.c

   1 /*****************************************************************************
   2  * freeaddrinfo.c: freeaddrinfo() replacement functions
   3  *****************************************************************************
   4  * Copyright (C) 2005 the VideoLAN team
   5  * Copyright (C) 2002-2007 Rémi Denis-Courmont
   6  * Copyright (C) 2011-2014 KO Myung-Hun
   7  *
   8  * Authors: KO Myung-Hun <komh@chollian.net>
   9  *          Rémi Denis-Courmont <rem # videolan.org>
  10  *
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU Lesser General Public License as published by
  13  * the Free Software Foundation; either version 2.1 of the License, or
  14  * (at your option) any later version.
  15  *
  16  * This program is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  * GNU Lesser General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU Lesser General Public License
  22  * along with this program; if not, write to the Free Software
  23  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  24  *****************************************************************************/
  25
  26 #ifdef HAVE_CONFIG_H
  27 # include "config.h"
  28 #endif
  29
  30 #include <stdlib.h>
  31
  32 /*
  33  * This function must be used to free the memory allocated by getaddrinfo().
  34  */
  35 void freeaddrinfo (struct addrinfo *res)
  36 {
  37     while (res != NULL)
  38     {
  39         struct addrinfo *next = res->ai_next;
  40
  41         free (res->ai_canonname);
  42         free (res->ai_addr);
  43         free (res);
  44         res = next;
  45     }
  46 }