lib/libspl/include/sys/stat.h

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License, Version 1.0 only
   6  * (the "License").  You may not use this file except in compliance
   7  * with the License.
   8  *
   9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10  * or http://www.opensolaris.org/os/licensing.
  11  * See the License for the specific language governing permissions
  12  * and limitations under the License.
  13  *
  14  * When distributing Covered Code, include this CDDL HEADER in each
  15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16  * If applicable, add the following below this CDDL HEADER, with the
  17  * fields enclosed by brackets "[]" replaced with your own identifying
  18  * information: Portions Copyright [yyyy] [name of copyright owner]
  19  *
  20  * CDDL HEADER END
  21  */
  22 /*
  23  * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
  24  */
  25
  26 #ifndef _LIBSPL_SYS_STAT_H
  27 #define _LIBSPL_SYS_STAT_H
  28
  29 #include_next <sys/stat.h>
  30
  31 #include <sys/mount.h> /* for BLKGETSIZE64 */
  32
  33 /*
  34  * Emulate Solaris' behavior of returning the block device size in fstat64().
  35  */
  36 static inline int
  37 fstat64_blk(int fd, struct stat64 *st)
  38 {
  39         if (fstat64(fd, st) == -1)
  40                 return (-1);
  41
  42         /* In Linux we need to use an ioctl to get the size of a block device */
  43         if (S_ISBLK(st->st_mode)) {
  44                 if (ioctl(fd, BLKGETSIZE64, &st->st_size) != 0)
  45                         return (-1);
  46         }
  47
  48         return (0);
  49 }
  50 #endif /* _LIBSPL_SYS_STAT_H */