sysdeps/unix/sysv/linux/fxstat.c

   1 /* fxstat using old-style Unix fstat system call.
   2    Copyright (C) 1991, 1995, 1996, 1997 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 Library General Public License as
   7    published by the Free Software Foundation; either version 2 of the
   8    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    Library General Public License for more details.
  14
  15    You should have received a copy of the GNU Library General Public
  16    License along with the GNU C Library; see the file COPYING.LIB.  If not,
  17    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  18    Boston, MA 02111-1307, USA.  */
  19
  20 /* Ho hum, if xstat == xstat64 we must get rid of the prototype or gcc
  21    will complain since they don't strictly match.  */
  22 #define __fxstat64 __fxstat64_disable
  23
  24 #include <errno.h>
  25 #include <stddef.h>
  26 #include <sys/stat.h>
  27 #include <kernel_stat.h>
  28
  29 #include <xstatconv.c>
  30
  31 extern int __syscall_fstat (int, struct kernel_stat *);
  32
  33 /* Get information about the file FD in BUF.  */
  34 int
  35 __fxstat (int vers, int fd, struct stat *buf)
  36 {
  37   struct kernel_stat kbuf;
  38   int result;
  39
  40   if (vers == _STAT_VER_KERNEL)
  41     return __syscall_fstat (fd, (struct kernel_stat *) buf);
  42
  43   result =  __syscall_fstat (fd, &kbuf);
  44   if (result == 0)
  45     result = xstat_conv (vers, &kbuf, buf);
  46
  47   return result;
  48 }
  49
  50 weak_alias (__fxstat, _fxstat);
  51 #ifdef XSTAT_IS_XSTAT64
  52 #undef __fxstat64
  53 strong_alias (__fxstat, __fxstat64);
  54 #endif