granicus.if.org Git - strace/blob - hdio.c

   1 /*
   2  * Copyright (c) 2009, 2010 Jeff Mahoney <jeffm@suse.com>
   3  * Copyright (c) 2011-2016 Dmitry V. Levin <ldv@altlinux.org>
   4  * Copyright (c) 2016-2018 The strace developers.
   5  * All rights reserved.
   6  *
   7  * SPDX-License-Identifier: LGPL-2.1-or-later
   8  */
   9
  10 #include "defs.h"
  11
  12 #include DEF_MPERS_TYPE(struct_hd_geometry)
  13
  14 #include <linux/hdreg.h>
  15
  16 typedef struct hd_geometry struct_hd_geometry;
  17
  18 #include MPERS_DEFS
  19
  20 MPERS_PRINTER_DECL(int, hdio_ioctl, struct tcb *const tcp,
  21                    const unsigned int code, const kernel_ulong_t arg)
  22 {
  23         switch (code) {
  24         case HDIO_GETGEO:
  25                 if (entering(tcp))
  26                         return 0;
  27                 else {
  28                         struct_hd_geometry geo;
  29
  30                         tprints(", ");
  31                         if (!umove_or_printaddr(tcp, arg, &geo))
  32                                 tprintf("{heads=%u, sectors=%u, "
  33                                         "cylinders=%hu, start=%lu}",
  34                                         (unsigned) geo.heads,
  35                                         (unsigned) geo.sectors,
  36                                         geo.cylinders,
  37                                         (unsigned long) geo.start);
  38                 }
  39                 break;
  40         default:
  41                 return RVAL_DECODED;
  42         }
  43
  44         return RVAL_IOCTL_DECODED;
  45 }