1  /* Get filesystem statistics (deprecated).  Linux version.
       2     Copyright (C) 1997-2023 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 <shlib-compat.h>
      20  
      21  /* This deprecated syscall is no longer used (replaced with {f}statfs).  */
      22  #if SHLIB_COMPAT(libc, GLIBC_2_0, GLIBC_2_28)
      23  
      24  # include <sysdep.h>
      25  # include <sys/types.h>
      26  
      27  # ifndef DEV_TO_KDEV
      28  #  define DEV_TO_KDEV(__dev)					\
      29    ({								\
      30      unsigned long long int k_dev;				\
      31      k_dev = dev & ((1ULL << 32) - 1);				\
      32      if (k_dev != dev)						\
      33       return INLINE_SYSCALL_ERROR_RETURN_VALUE (EINVAL);		\
      34      (unsigned int) k_dev;					\
      35    })
      36  # endif
      37  
      38  struct ustat
      39  {
      40    __daddr_t f_tfree;         /* Number of free blocks.  */
      41    __ino_t f_tinode;          /* Number of free inodes.  */
      42    char f_fname[6];
      43    char f_fpack[6];
      44  };
      45  
      46  int
      47  __old_ustat (dev_t dev, struct ustat *ubuf)
      48  {
      49  # ifdef __NR_ustat
      50    return INLINE_SYSCALL_CALL (ustat, DEV_TO_KDEV (dev), ubuf);
      51  # else
      52    return INLINE_SYSCALL_ERROR_RETURN_VALUE (ENOSYS);
      53  # endif
      54  }
      55  compat_symbol (libc, __old_ustat, ustat, GLIBC_2_0);
      56  #endif /* SHLIB_COMPAT(libc, GLIBC_2_0, GLIBC_2_28)  */