Blame misc/tst-mntent-blank-corrupt.c

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/* Make sure blank lines does not cause memory corruption BZ #18887.
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   Copyright (C) 2009-2018 Free Software Foundation, Inc.
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   This file is part of the GNU C Library.
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   The GNU C Library is free software; you can redistribute it and/or
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   modify it under the terms of the GNU Lesser General Public
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   License as published by the Free Software Foundation; either
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   version 2.1 of the License, or (at your option) any later version.
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   The GNU C Library is distributed in the hope that it will be useful,
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   but WITHOUT ANY WARRANTY; without even the implied warranty of
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   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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   Lesser General Public License for more details.
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   You should have received a copy of the GNU Lesser General Public
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   License along with the GNU C Library; if not, see
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   <http://www.gnu.org/licenses/>.  */
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#include <mntent.h>
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#include <stdio.h>
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#include <string.h>
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/* Make sure blank lines don't trigger memory corruption.  This doesn't happen
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   for all targets though, so it's a best effort test BZ #18887.  */
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static int
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do_test (void)
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{
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  FILE *fp;
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  fp = tmpfile ();
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  fputs ("\n \n/foo\\040dir /bar\\040dir auto bind \t \n", fp);
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  rewind (fp);
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  /* The corruption happens here ...  */
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  getmntent (fp);
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  /* ... but trigers here.  */
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  endmntent (fp);
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  /* If the test failed, we would crash, and not hit this point.  */
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  return 0;
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}
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#define TEST_FUNCTION do_test ()
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#include "../test-skeleton.c"