1  /* Generic version of pwritev2.
       2     Copyright (C) 2017-2023 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 <errno.h>
      20  #include <unistd.h>
      21  #include <sys/uio.h>
      22  
      23  #ifndef __OFF_T_MATCHES_OFF64_T
      24  
      25  /* Since we define no flags for pwritev2 just route to pwritev.  */
      26  ssize_t
      27  pwritev2 (int fd, const struct iovec *vector, int count, off_t offset,
      28  	  int flags)
      29  {
      30    if (flags != 0)
      31      {
      32        __set_errno (ENOTSUP);
      33        return -1;
      34      }
      35  
      36    if (offset == -1)
      37      return __writev (fd, vector, count);
      38    else
      39      return pwritev (fd, vector, count, offset);
      40  }
      41  
      42  #endif