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[thirdparty/glibc.git] / sysdeps / unix / sysv / linux / copy_file_range.c

/* Linux implementation of copy_file_range.
   Copyright (C) 2017-2020 Free Software Foundation, Inc.
   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, see
   <https://www.gnu.org/licenses/>.  */

#include <errno.h>
#include <sysdep-cancel.h>
#include <unistd.h>

ssize_t
copy_file_range (int infd, __off64_t *pinoff,
                 int outfd, __off64_t *poutoff,
                 size_t length, unsigned int flags)
{
#ifdef __NR_copy_file_range
  return SYSCALL_CANCEL (copy_file_range, infd, pinoff, outfd, poutoff,
                         length, flags);
#else
  __set_errno (ENOSYS);
  return -1;
#endif
}