1  /* Release any resource associated with given conversion descriptor.
       2     Copyright (C) 1997-2023 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
      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  }