1  /* lxstat using old-style Unix stat system call.
       2     Copyright (C) 1991-2023 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 <sys/stat.h>
      20  #include <fcntl.h>
      21  #include <kernel_stat.h>
      22  #include <sysdep.h>
      23  #include <shlib-compat.h>
      24  
      25  #if !XSTAT_IS_XSTAT64
      26  # include <xstatconv.h>
      27  # include <xstatover.h>
      28  
      29  # if LIB_COMPAT(libc, GLIBC_2_0, GLIBC_2_33)
      30  
      31  /* Get information about the file NAME in BUF.  */
      32  int
      33  __lxstat (int vers, const char *name, struct stat *buf)
      34  {
      35    switch (vers)
      36      {
      37      case _STAT_VER_KERNEL:
      38        {
      39  # if STAT_IS_KERNEL_STAT
      40  	/* New kABIs which uses generic pre 64-bit time Linux ABI,
      41  	   e.g. csky, nios2  */
      42  	int r = INLINE_SYSCALL_CALL (fstatat64, AT_FDCWD, name, buf,
      43  				     AT_SYMLINK_NOFOLLOW);
      44  	return r ?: stat_overflow (buf);
      45  # else
      46  	/* Old kABIs with old non-LFS support, e.g. arm, i386, hppa, m68k,
      47  	   microblaze, s390, sh, powerpc, and sparc.  */
      48  	return INLINE_SYSCALL_CALL (lstat, name, buf);
      49  # endif
      50        }
      51  
      52      default:
      53        {
      54  # if STAT_IS_KERNEL_STAT
      55  	return INLINE_SYSCALL_ERROR_RETURN_VALUE (EINVAL);
      56  # else
      57  	struct stat64 buf64;
      58  	int r = INLINE_SYSCALL_CALL (lstat64, name, &buf64);
      59  	return r ?: __xstat32_conv (vers, &buf64, buf);
      60  #endif
      61        }
      62      }
      63  }
      64  
      65  # endif /* SHLIB_COMPAT  */
      66  
      67  #endif /* XSTAT_IS_XSTAT64  */