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

   1 /* xstat 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 __xstat64 __xstat64_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 __xstat64
  31
  32
  33 /* Get information about the file NAME in BUF.  */
  34 int
  35 __xstat (int vers, const char *name, struct stat *buf)
  36 {
  37   INTERNAL_SYSCALL_DECL (err);
  38   int result, errno_out;
  39   struct kernel_stat kbuf;
  40
  41   if (vers == _STAT_VER_KERNEL64 && !__libc_missing_axp_stat64)
  42     {
  43       result = INTERNAL_SYSCALL (stat64, err, 2, name, buf);
  44       if (__builtin_expect (!INTERNAL_SYSCALL_ERROR_P (result, err), 1))
  45         return result;
  46       errno_out = INTERNAL_SYSCALL_ERRNO (result, err);
  47       if (errno_out != ENOSYS)
  48         goto fail;
  49       __libc_missing_axp_stat64 = 1;
  50     }
  51
  52   result = INTERNAL_SYSCALL (stat, err, 2, name, &kbuf);
  53   if (__builtin_expect (!INTERNAL_SYSCALL_ERROR_P (result, err), 1))
  54     return __xstat_conv (vers, &kbuf, buf);
  55   errno_out = INTERNAL_SYSCALL_ERRNO (result, err);
  56
  57  fail:
  58   __set_errno (errno_out);
  59   return -1;
  60 }
  61 hidden_def (__xstat)
  62 weak_alias (__xstat, _xstat);
  63 strong_alias (__xstat, __xstat64);
  64 hidden_ver (__xstat, __xstat64)