sysdeps/mach/hurd/pwrite.c

   1 /* Write block at given position in file without changing file pointer.
   2    Hurd version.
   3    Copyright (C) 1999-2019 Free Software Foundation, Inc.
   4    This file is part of the GNU C Library.
   5
   6    The GNU C Library is free software; you can redistribute it and/or
   7    modify it under the terms of the GNU Lesser General Public
   8    License as published by the Free Software Foundation; either
   9    version 2.1 of the License, or (at your option) any later version.
  10
  11    The GNU C Library is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14    Lesser General Public License for more details.
  15
  16    You should have received a copy of the GNU Lesser General Public
  17    License along with the GNU C Library; if not, see
  18    <http://www.gnu.org/licenses/>.  */
  19
  20 #include <errno.h>
  21 #include <unistd.h>
  22
  23 /* Write NBYTES of BUF to FD at given position OFFSET without changing
  24    the file position.  Return the number written, or -1.  */
  25 ssize_t
  26 __libc_pwrite (int fd, const void *buf, size_t nbytes, off_t offset)
  27 {
  28   return __libc_pwrite64 (fd, buf, nbytes, (off64_t) offset);
  29 }
  30
  31 #ifndef __libc_pwrite
  32 strong_alias (__libc_pwrite, __pwrite)
  33 weak_alias (__libc_pwrite, pwrite)
  34 #endif