Blame io/fcntl.c

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/* Copyright (C) 1991-2018 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 <fcntl.h>
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/* Perform file control operations on FD.  */
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int
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__fcntl (int fd, int cmd, ...)
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{
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  if (fd < 0)
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    {
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      __set_errno (EBADF);
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      return -1;
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    }
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  __set_errno (ENOSYS);
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  return -1;
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}
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libc_hidden_def (__fcntl)
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stub_warning (fcntl)
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weak_alias (__fcntl, fcntl)