iconv/tst-iconv8.c

   1 /* Test iconv behavior on UCS4 conversions with //IGNORE.
   2    Copyright (C) 2020-2023 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    <http://www.gnu.org/licenses/>.  */
  18
  19 /* Derived from BZ #26923 */
  20 #include <errno.h>
  21 #include <iconv.h>
  22 #include <stdio.h>
  23 #include <support/check.h>
  24
  25 static int
  26 do_test (void)
  27 {
  28   iconv_t cd = iconv_open ("UTF-8//IGNORE", "ISO-10646/UCS4/");
  29   TEST_VERIFY_EXIT (cd != (iconv_t) -1);
  30
  31   /*
  32    * Convert sequence beginning with an irreversible character into buffer that
  33    * is too small.
  34    */
  35   char input[12] = "\xe1\x80\xa1" "AAAAAAAAA";
  36   char *inptr = input;
  37   size_t insize = sizeof (input);
  38   char output[6];
  39   char *outptr = output;
  40   size_t outsize = sizeof (output);
  41
  42   TEST_VERIFY (iconv (cd, &inptr, &insize, &outptr, &outsize) == -1);
  43   TEST_VERIFY (errno == E2BIG);
  44
  45   TEST_VERIFY_EXIT (iconv_close (cd) != -1);
  46
  47   return 0;
  48 }
  49
  50 #include <support/test-driver.c>