support/xcopy_file_range.c

   1 /* copy_file_range with error checking.
   2    Copyright (C) 2018-2020 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    <https://www.gnu.org/licenses/>.  */
  18
  19 #include <support/support.h>
  20 #include <support/xunistd.h>
  21 #include <support/check.h>
  22
  23 ssize_t
  24 xcopy_file_range (int infd, off64_t *pinoff, int outfd, off64_t *poutoff,
  25                   size_t length, unsigned int flags)
  26 {
  27   ssize_t status = support_copy_file_range (infd, pinoff, outfd,
  28                                             poutoff, length, flags);
  29   if (status == -1)
  30     FAIL_EXIT1 ("cannot copy file: %m\n");
  31   return status;
  32 }