sysdeps/unix/sysv/linux/alpha/fxstat.c

   1 /* fxstat using old-style Unix stat system call.
   2    Copyright (C) 2004 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 #define __fxstat64 __fxstat64_disable
  20
  21 #include <errno.h>
  22 #include <stddef.h>
  23 #include <sys/stat.h>
  24 #include <kernel_stat.h>
  25 #include <sysdep.h>
  26 #include <sys/syscall.h>
  27 #include <xstatconv.h>
  28
  29 #undef __fxstat64
  30
  31
  32 /* Get information about the file NAME in BUF.  */
  33 int
  34 __fxstat (int vers, int fd, struct stat *buf)
  35 {
  36   INTERNAL_SYSCALL_DECL (err);
  37   int result;
  38   struct kernel_stat kbuf;
  39
  40 #if __ASSUME_STAT64_SYSCALL > 0
  41   if (vers == _STAT_VER_KERNEL64)
  42     {
  43       result = INTERNAL_SYSCALL (fstat64, err, 2, fd, buf);
  44       if (__builtin_expect (!INTERNAL_SYSCALL_ERROR_P (result, err), 1))
  45         return result;
  46       __set_errno (INTERNAL_SYSCALL_ERRNO (result, err));
  47       return -1;
  48     }
  49 #elif defined __NR_fstat64
  50   if (vers == _STAT_VER_KERNEL64 && !__libc_missing_axp_stat64)
  51     {
  52       int errno_out;
  53       result = INTERNAL_SYSCALL (fstat64, err, 2, fd, buf);
  54       if (__builtin_expect (!INTERNAL_SYSCALL_ERROR_P (result, err), 1))
  55         return result;
  56       errno_out = INTERNAL_SYSCALL_ERRNO (result, err);
  57       if (errno_out != ENOSYS)
  58         {
  59           __set_errno (errno_out);
  60           return -1;
  61         }
  62       __libc_missing_axp_stat64 = 1;
  63     }
  64 #endif
  65
  66   result = INTERNAL_SYSCALL (fstat, err, 2, fd, &kbuf);
  67   if (__builtin_expect (!INTERNAL_SYSCALL_ERROR_P (result, err), 1))
  68     return __xstat_conv (vers, &kbuf, buf);
  69   __set_errno (INTERNAL_SYSCALL_ERRNO (result, err));
  70   return -1;
  71 }
  72 hidden_def (__fxstat)
  73 weak_alias (__fxstat, _fxstat);
  74 strong_alias (__fxstat, __fxstat64);
  75 hidden_ver (__fxstat, __fxstat64)