db/info.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Copyright (C) 2018 Oracle.  All Rights Reserved.
   4  * Author: Darrick J. Wong <darrick.wong@oracle.com>
   5  */
   6 #include "libxfs.h"
   7 #include "command.h"
   8 #include "init.h"
   9 #include "output.h"
  10 #include "fsgeom.h"
  11
  12 static void
  13 info_help(void)
  14 {
  15         dbprintf(_(
  16 "\n"
  17 " Pretty-prints the filesystem geometry as derived from the superblock.\n"
  18 " The output has the same format as mkfs.xfs, xfs_info, and other utilities.\n"
  19 "\n"
  20 ));
  21
  22 }
  23
  24 static int
  25 info_f(
  26         int                     argc,
  27         char                    **argv)
  28 {
  29         struct xfs_fsop_geom    geo;
  30         int                     error;
  31
  32         error = -libxfs_fs_geometry(&mp->m_sb, &geo,
  33                         XFS_FS_GEOM_MAX_STRUCT_VER);
  34         if (error) {
  35                 dbprintf(_("could not obtain geometry\n"));
  36                 exitcode = 1;
  37                 return 0;
  38         }
  39
  40         xfs_report_geom(&geo, fsdevice, x.logname, x.rtname);
  41         return 0;
  42 }
  43
  44 static const struct cmdinfo info_cmd = {
  45         .name =         "info",
  46         .altname =      "i",
  47         .cfunc =        info_f,
  48         .argmin =       0,
  49         .argmax =       0,
  50         .canpush =      0,
  51         .args =         NULL,
  52         .oneline =      N_("pretty-print superblock info"),
  53         .help =         info_help,
  54 };
  55
  56 void
  57 info_init(void)
  58 {
  59         add_command(&info_cmd);
  60 }