1 /* Release any resource associated with given conversion descriptor.
2    Copyright (C) 1997-2022 Free Software Foundation, Inc.
3    This file is part of the GNU C Library.
4 
5    The GNU C Library is free software; you can redistribute it and/or
6    modify it under the terms of the GNU Lesser General Public
7    License as published by the Free Software Foundation; either
8    version 2.1 of the License, or (at your option) any later version.
9 
10    The GNU C Library is distributed in the hope that it will be useful,
11    but WITHOUT ANY WARRANTY; without even the implied warranty of
12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13    Lesser General Public License for more details.
14 
15    You should have received a copy of the GNU Lesser General Public
16    License along with the GNU C Library; if not, see
17    <https://www.gnu.org/licenses/>.  */
18 
19 #include <stdlib.h>
20 
21 #include <gconv_int.h>
22 
23 
24 int
__gconv_close(__gconv_t cd)25 __gconv_close (__gconv_t cd)
26 {
27   struct __gconv_step *srunp;
28   struct __gconv_step_data *drunp;
29   size_t nsteps;
30 
31   /* Free all resources by calling destructor functions and release
32      the implementations.  */
33   srunp = cd->__steps;
34   nsteps = cd->__nsteps;
35   drunp = cd->__data;
36   do
37     {
38       if (!(drunp->__flags & __GCONV_IS_LAST) && drunp->__outbuf != NULL)
39 	free (drunp->__outbuf);
40     }
41   while (!((drunp++)->__flags & __GCONV_IS_LAST));
42 
43   /* Free the data allocated for the descriptor.  */
44   free (cd);
45 
46   /* Close the participating modules.  */
47   return __gconv_close_transform (srunp, nsteps);
48 }
49