sysdeps/posix/preadv2.c

   1 /* Generic version of preadv2.
   2    Copyright (C) 2017 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    <http://www.gnu.org/licenses/>.  */
  18
  19 #include <unistd.h>
  20 #include <sys/uio.h>
  21
  22 #ifndef __OFF_T_MATCHES_OFF64_T
  23
  24 /* Since we define no flags for preadv2 just route to preadv.  */
  25 ssize_t
  26 preadv2 (int fd, const struct iovec *vector, int count, off_t offset,
  27          int flags)
  28 {
  29   if (flags != 0)
  30     {
  31       __set_errno (ENOTSUP);
  32       return -1;
  33     }
  34
  35   return preadv (fd, vector, count, offset);
  36 }
  37
  38 #endif