misc/preadv.c

   1 /* Copyright (C) 2009 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, see
  16    <http://www.gnu.org/licenses/>.  */
  17
  18 #include <errno.h>
  19 #include <unistd.h>
  20 #include <sys/uio.h>
  21
  22 /* Read data from file descriptor FD at the given position OFFSET
  23    without change the file pointer, and put the result in the buffers
  24    described by VECTOR, which is a vector of COUNT 'struct iovec's.
  25    The buffers are filled in the order specified.  Operates just like
  26    'pread' (see <unistd.h>) except that data are put in VECTOR instead
  27    of a contiguous buffer.  */
  28 ssize_t
  29 preadv (fd, vector, count, offset)
  30      int fd;
  31      const struct iovec *vector;
  32      int count;
  33      off_t offset;
  34 {
  35   __set_errno (ENOSYS);
  36   return -1;
  37 }
  38
  39 stub_warning (preadv)
  40 #include <stub-tag.h>