Blame debug/getgroups_chk.c

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/* Copyright (C) 2005-2018 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 <errno.h>
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#include <unistd.h>
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int
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__getgroups_chk (int size, __gid_t list[], size_t listlen)
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{
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  if (__glibc_unlikely (size < 0))
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    {
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      __set_errno (EINVAL);
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      return -1;
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    }
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  if (__glibc_unlikely (size * sizeof (__gid_t) > listlen))
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    __chk_fail ();
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  return __getgroups (size, list);
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}