io/imap.c

   1 /*
   2  * Copyright (c) 2001-2003,2005 Silicon Graphics, Inc.
   3  * All Rights Reserved.
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU General Public License as
   7  * published by the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope that it would be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write the Free Software Foundation,
  16  * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  17  */
  18
  19 #include <xfs/libxfs.h>
  20 #include <xfs/command.h>
  21 #include <xfs/input.h>
  22 #include "init.h"
  23 #include "io.h"
  24
  25 #if defined(__sgi__)
  26 # define ino64p         ino64_t *
  27 #else
  28 # define ino64p         __u64 *
  29 #endif
  30
  31 static cmdinfo_t imap_cmd;
  32
  33 int
  34 imap_f(int argc, char **argv)
  35 {
  36         int             count;
  37         int             nent;
  38         int             i;
  39         __s64           last = 0;
  40         xfs_inogrp_t    *t;
  41         xfs_fsop_bulkreq_t bulkreq;
  42
  43         if (argc != 2)
  44                 nent = 1;
  45         else
  46                 nent = atoi(argv[1]);
  47
  48         t = malloc(nent * sizeof(*t));
  49
  50         bulkreq.lastip  = (ino64p)&last;
  51         bulkreq.icount  = nent;
  52         bulkreq.ubuffer = (void *)t;
  53         bulkreq.ocount  = &count;
  54
  55         while (xfsctl(file->name, file->fd, XFS_IOC_FSINUMBERS, &bulkreq) == 0) {
  56                 if (count == 0)
  57                         return 0;
  58                 for (i = 0; i < count; i++) {
  59                         printf(_("ino %10llu count %2d mask %016llx\n"),
  60                                 (unsigned long long)t[i].xi_startino,
  61                                 t[i].xi_alloccount,
  62                                 (unsigned long long)t[i].xi_allocmask);
  63                 }
  64         }
  65         perror("xfsctl(XFS_IOC_FSINUMBERS)");
  66         exitcode = 1;
  67         return 0;
  68 }
  69
  70 void
  71 imap_init(void)
  72 {
  73         imap_cmd.name = _("imap");
  74         imap_cmd.cfunc = imap_f;
  75         imap_cmd.argmin = 0;
  76         imap_cmd.argmax = 0;
  77         imap_cmd.args = _("[nentries]");
  78         imap_cmd.flags = CMD_NOMAP_OK;
  79         imap_cmd.oneline = _("inode map for filesystem of current file");
  80
  81         if (expert)
  82                 add_command(&imap_cmd);
  83 }