1  /* Copyright (C) 2011-2023 Free Software Foundation, Inc.
       2     This file is part of the GNU C Library.
       3  
       4     The GNU C Library is free software; you can redistribute it and/or
       5     modify it under the terms of the GNU Lesser General Public
       6     License as published by the Free Software Foundation; either
       7     version 2.1 of the License, or (at your option) any later version.
       8  
       9     The GNU C Library is distributed in the hope that it will be useful,
      10     but WITHOUT ANY WARRANTY; without even the implied warranty of
      11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      12     Lesser General Public License for more details.
      13  
      14     You should have received a copy of the GNU Lesser General Public
      15     License along with the GNU C Library.  If not, see
      16     <https://www.gnu.org/licenses/>.  */
      17  
      18  #include <sys/statfs.h>
      19  #include <time.h>
      20  #include <sysdep.h>
      21  #include <kernel_stat.h>
      22  
      23  #if !STATFS_IS_STATFS64
      24  
      25  /* Return information about the filesystem on which FILE resides.  */
      26  int
      27  __statfs (const char *file, struct statfs *buf)
      28  {
      29    struct statfs64 buf64;
      30    int rc = INLINE_SYSCALL_CALL (statfs64, file, sizeof (buf64), &buf64);
      31    if (rc == 0)
      32      {
      33        buf->f_type = buf64.f_type;
      34        buf->f_bsize = buf64.f_bsize;
      35        buf->f_blocks = buf64.f_blocks;
      36        buf->f_bfree = buf64.f_bfree;
      37        buf->f_bavail = buf64.f_bavail;
      38        buf->f_files = buf64.f_files;
      39        buf->f_ffree = buf64.f_ffree;
      40        buf->f_fsid = buf64.f_fsid;
      41        buf->f_namelen = buf64.f_namelen;
      42        buf->f_frsize = buf64.f_frsize;
      43        buf->f_flags = buf64.f_flags;
      44        memcpy (buf->f_spare, buf64.f_spare, sizeof (buf64.f_spare));
      45  
      46        if ((fsblkcnt_t) buf64.f_blocks != buf64.f_blocks
      47  	  || (fsblkcnt_t) buf64.f_bfree != buf64.f_bfree
      48  	  || (fsblkcnt_t) buf64.f_bavail != buf64.f_bavail
      49  	  || (fsblkcnt_t) buf64.f_files != buf64.f_files
      50  	  || (fsblkcnt_t) buf64.f_ffree != buf64.f_ffree)
      51  	{
      52  	  __set_errno (EOVERFLOW);
      53  	  return -1;
      54  	}
      55      }
      56    return rc;
      57  }
      58  libc_hidden_def (__statfs)
      59  weak_alias (__statfs, statfs)
      60  #endif