libbtrfsutil/errors.c

   1 /*
   2  * Copyright (C) 2018 Facebook
   3  *
   4  * This file is part of libbtrfsutil.
   5  *
   6  * libbtrfsutil is free software: you can redistribute it and/or modify
   7  * it under the terms of the GNU Lesser General Public License as published by
   8  * the Free Software Foundation, either version 3 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * libbtrfsutil is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public License
  17  * along with libbtrfsutil.  If not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #include <stddef.h>
  21
  22 #include "btrfsutil_internal.h"
  23
  24 static const char * const error_messages[] = {
  25         [BTRFS_UTIL_OK] = "Success",
  26         [BTRFS_UTIL_ERROR_STOP_ITERATION] = "Stop iteration",
  27         [BTRFS_UTIL_ERROR_NO_MEMORY] = "Cannot allocate memory",
  28         [BTRFS_UTIL_ERROR_INVALID_ARGUMENT] = "Invalid argument",
  29         [BTRFS_UTIL_ERROR_NOT_BTRFS] = "Not a Btrfs filesystem",
  30         [BTRFS_UTIL_ERROR_NOT_SUBVOLUME] = "Not a Btrfs subvolume",
  31         [BTRFS_UTIL_ERROR_SUBVOLUME_NOT_FOUND] = "Subvolume not found",
  32         [BTRFS_UTIL_ERROR_OPEN_FAILED] = "Could not open",
  33         [BTRFS_UTIL_ERROR_RMDIR_FAILED] = "Could not rmdir",
  34         [BTRFS_UTIL_ERROR_UNLINK_FAILED] = "Could not unlink",
  35         [BTRFS_UTIL_ERROR_STAT_FAILED] = "Could not stat",
  36         [BTRFS_UTIL_ERROR_STATFS_FAILED] = "Could not statfs",
  37         [BTRFS_UTIL_ERROR_SEARCH_FAILED] = "Could not search B-tree",
  38         [BTRFS_UTIL_ERROR_INO_LOOKUP_FAILED] = "Could not lookup inode",
  39         [BTRFS_UTIL_ERROR_SUBVOL_GETFLAGS_FAILED] = "Could not get subvolume flags",
  40         [BTRFS_UTIL_ERROR_SUBVOL_SETFLAGS_FAILED] = "Could not set subvolume flags",
  41         [BTRFS_UTIL_ERROR_SUBVOL_CREATE_FAILED] = "Could not create subvolume",
  42         [BTRFS_UTIL_ERROR_SNAP_CREATE_FAILED] = "Could not create snapshot",
  43         [BTRFS_UTIL_ERROR_SNAP_DESTROY_FAILED] = "Could not destroy subvolume/snapshot",
  44         [BTRFS_UTIL_ERROR_DEFAULT_SUBVOL_FAILED] = "Could not set default subvolume",
  45         [BTRFS_UTIL_ERROR_SYNC_FAILED] = "Could not sync filesystem",
  46         [BTRFS_UTIL_ERROR_START_SYNC_FAILED] = "Could not start filesystem sync",
  47         [BTRFS_UTIL_ERROR_WAIT_SYNC_FAILED] = "Could not wait for filesystem sync",
  48 };
  49
  50 PUBLIC const char *btrfs_util_strerror(enum btrfs_util_error err)
  51 {
  52         if (err < 0 || err >= sizeof(error_messages) / sizeof(error_messages[0]))
  53                 return NULL;
  54         return error_messages[err];
  55 }