1  /* Convert between `struct stat' format, and `struct stat64' format.
       2     Copyright (C) 2000-2023 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 <errno.h>
      20  #include <sys/stat.h>
      21  #include <hurd.h>
      22  
      23  static inline int
      24  stat64_conv (struct stat *buf, const struct stat64 *buf64)
      25  {
      26    if (sizeof *buf == sizeof *buf64
      27        && sizeof buf->st_ino == sizeof buf64->st_ino
      28        && sizeof buf->st_size == sizeof buf64->st_size
      29        && sizeof buf->st_blocks == sizeof buf64->st_blocks)
      30      {
      31        *buf = *(struct stat *) buf64;
      32        return 0;
      33      }
      34  
      35    buf->st_fstype = buf64->st_fstype;
      36    buf->st_fsid = buf64->st_fsid;
      37    buf->st_ino = buf64->st_ino;
      38    buf->st_gen = buf64->st_gen;
      39    buf->st_rdev = buf64->st_rdev;
      40    buf->st_mode = buf64->st_mode;
      41    buf->st_nlink = buf64->st_nlink;
      42    buf->st_uid = buf64->st_uid;
      43    buf->st_gid = buf64->st_gid;
      44    buf->st_size = buf64->st_size;
      45    buf->st_atim = buf64->st_atim;
      46    buf->st_mtim = buf64->st_mtim;
      47    buf->st_ctim = buf64->st_ctim;
      48    buf->st_blksize = buf64->st_blksize;
      49    buf->st_blocks = buf64->st_blocks;
      50    buf->st_author = buf64->st_author;
      51    buf->st_flags = buf64->st_flags;
      52  
      53    if ((sizeof buf->st_ino != sizeof buf64->st_ino
      54         && buf->st_ino != buf64->st_ino)
      55        || (sizeof buf->st_size != sizeof buf64->st_size
      56  	  && buf->st_size != buf64->st_size)
      57        || (sizeof buf->st_blocks != sizeof buf64->st_blocks
      58  	  && buf->st_blocks != buf64->st_blocks))
      59      return __hurd_fail (EOVERFLOW);
      60  
      61    return 0;
      62  }