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, write to the Free
  17    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  18    02111-1307 USA.  */
  19
  20 #define __fxstat64 __fxstat64_disable
  21
  22 #include <errno.h>
  23 #include <stddef.h>
  24 #include <sys/stat.h>
  25 #include <kernel_stat.h>
  26 #include <sysdep.h>
  27 #include <sys/syscall.h>
  28 #include <xstatconv.h>
  29
  30 #undef __fxstat64
  31
  32
  33 /* Get information about the file NAME in BUF.  */
  34 int
  35 __fxstat (int vers, int fd, struct stat *buf)
  36 {
  37   INTERNAL_SYSCALL_DECL (err);
  38   int result;
  39   struct kernel_stat kbuf;
  40
  41 #if __ASSUME_STAT64_SYSCALL > 0
  42   if (vers == _STAT_VER_KERNEL64)
  43     {
  44       result = INTERNAL_SYSCALL (fstat64, err, 2, fd, buf);
  45       if (__builtin_expect (!INTERNAL_SYSCALL_ERROR_P (result, err), 1))
  46         return result;
  47       __set_errno (INTERNAL_SYSCALL_ERRNO (result, err));
  48       return -1;
  49     }
  50 #elif defined __NR_fstat64
  51   if (vers == _STAT_VER_KERNEL64 && !__libc_missing_axp_stat64)
  52     {
  53       int errno_out;
  54       result = INTERNAL_SYSCALL (fstat64, err, 2, fd, buf);
  55       if (__builtin_expect (!INTERNAL_SYSCALL_ERROR_P (result, err), 1))
  56         return result;
  57       errno_out = INTERNAL_SYSCALL_ERRNO (result, err);
  58       if (errno_out != ENOSYS)
  59         {
  60           __set_errno (errno_out);
  61           return -1;
  62         }
  63       __libc_missing_axp_stat64 = 1;
  64     }
  65 #endif
  66
  67   result = INTERNAL_SYSCALL (fstat, err, 2, fd, &kbuf);
  68   if (__builtin_expect (!INTERNAL_SYSCALL_ERROR_P (result, err), 1))
  69     return __xstat_conv (vers, &kbuf, buf);
  70   __set_errno (INTERNAL_SYSCALL_ERRNO (result, err));
  71   return -1;
  72 }
  73 hidden_def (__fxstat)
  74 weak_alias (__fxstat, _fxstat);
  75 strong_alias (__fxstat, __fxstat64);
  76 hidden_ver (__fxstat, __fxstat64)