iconv/iconv_close.c

   1 /* Release any resource associated with given conversion descriptor.
   2    Copyright (C) 1997-2021 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
   5
   6    The GNU C Library is free software; you can redistribute it and/or
   7    modify it under the terms of the GNU Lesser General Public
   8    License as published by the Free Software Foundation; either
   9    version 2.1 of the License, or (at your option) any later version.
  10
  11    The GNU C Library is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14    Lesser General Public License for more details.
  15
  16    You should have received a copy of the GNU Lesser General Public
  17    License along with the GNU C Library; if not, see
  18    <https://www.gnu.org/licenses/>.  */
  19
  20 #include <errno.h>
  21 #include <iconv.h>
  22
  23 #include <gconv_int.h>
  24
  25
  26 int
  27 iconv_close (iconv_t cd)
  28 {
  29   if (__glibc_unlikely (cd == (iconv_t *) -1L))
  30     {
  31       __set_errno (EBADF);
  32       return -1;
  33     }
  34
  35   return __gconv_close ((__gconv_t) cd) ? -1 : 0;
  36 }