iconv/iconv_close.c

   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 <errno.h>
  20 #include <iconv.h>
  21
  22 #include <gconv_int.h>
  23
  24
  25 int
  26 iconv_close (iconv_t cd)
  27 {
  28   if (__glibc_unlikely (cd == (iconv_t *) -1L))
  29     {
  30       __set_errno (EBADF);
  31       return -1;
  32     }
  33
  34   return __gconv_close ((__gconv_t) cd) ? -1 : 0;
  35 }