mirror of
https://github.com/kdave/btrfs-progs
synced 2024-12-09 16:07:03 +00:00
502e2a3510
Currently, users wishing to manage Btrfs filesystems programatically have to shell out to btrfs-progs and parse the output. This isn't ideal. The goal of libbtrfsutil is to provide a library version of as many of the operations of btrfs-progs as possible and to migrate btrfs-progs to use it. Rather than simply refactoring the existing btrfs-progs code, the code has to be written from scratch for a couple of reasons: * A lot of the btrfs-progs code was not designed with a nice library API in mind in terms of reusability, naming, and error reporting. * libbtrfsutil is licensed under the LGPL, whereas btrfs-progs is under the GPL, which makes it dubious to directly copy or move the code. Eventually, most of the low-level btrfs-progs code should either live in libbtrfsutil or the shared kernel/userspace filesystem code, and btrfs-progs will just be the CLI wrapper. This first commit just includes the build system changes, license, README, and error reporting helper. Signed-off-by: Omar Sandoval <osandov@fb.com> Reviewed-by: Liu Bo <bo.li.liu@oracle.com> Signed-off-by: David Sterba <dsterba@suse.com>
56 lines
2.4 KiB
C
56 lines
2.4 KiB
C
/*
|
|
* Copyright (C) 2018 Facebook
|
|
*
|
|
* This file is part of libbtrfsutil.
|
|
*
|
|
* libbtrfsutil is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU Lesser General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* libbtrfsutil is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public License
|
|
* along with libbtrfsutil. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include <stddef.h>
|
|
|
|
#include "btrfsutil_internal.h"
|
|
|
|
static const char * const error_messages[] = {
|
|
[BTRFS_UTIL_OK] = "Success",
|
|
[BTRFS_UTIL_ERROR_STOP_ITERATION] = "Stop iteration",
|
|
[BTRFS_UTIL_ERROR_NO_MEMORY] = "Cannot allocate memory",
|
|
[BTRFS_UTIL_ERROR_INVALID_ARGUMENT] = "Invalid argument",
|
|
[BTRFS_UTIL_ERROR_NOT_BTRFS] = "Not a Btrfs filesystem",
|
|
[BTRFS_UTIL_ERROR_NOT_SUBVOLUME] = "Not a Btrfs subvolume",
|
|
[BTRFS_UTIL_ERROR_SUBVOLUME_NOT_FOUND] = "Subvolume not found",
|
|
[BTRFS_UTIL_ERROR_OPEN_FAILED] = "Could not open",
|
|
[BTRFS_UTIL_ERROR_RMDIR_FAILED] = "Could not rmdir",
|
|
[BTRFS_UTIL_ERROR_UNLINK_FAILED] = "Could not unlink",
|
|
[BTRFS_UTIL_ERROR_STAT_FAILED] = "Could not stat",
|
|
[BTRFS_UTIL_ERROR_STATFS_FAILED] = "Could not statfs",
|
|
[BTRFS_UTIL_ERROR_SEARCH_FAILED] = "Could not search B-tree",
|
|
[BTRFS_UTIL_ERROR_INO_LOOKUP_FAILED] = "Could not lookup inode",
|
|
[BTRFS_UTIL_ERROR_SUBVOL_GETFLAGS_FAILED] = "Could not get subvolume flags",
|
|
[BTRFS_UTIL_ERROR_SUBVOL_SETFLAGS_FAILED] = "Could not set subvolume flags",
|
|
[BTRFS_UTIL_ERROR_SUBVOL_CREATE_FAILED] = "Could not create subvolume",
|
|
[BTRFS_UTIL_ERROR_SNAP_CREATE_FAILED] = "Could not create snapshot",
|
|
[BTRFS_UTIL_ERROR_SNAP_DESTROY_FAILED] = "Could not destroy subvolume/snapshot",
|
|
[BTRFS_UTIL_ERROR_DEFAULT_SUBVOL_FAILED] = "Could not set default subvolume",
|
|
[BTRFS_UTIL_ERROR_SYNC_FAILED] = "Could not sync filesystem",
|
|
[BTRFS_UTIL_ERROR_START_SYNC_FAILED] = "Could not start filesystem sync",
|
|
[BTRFS_UTIL_ERROR_WAIT_SYNC_FAILED] = "Could not wait for filesystem sync",
|
|
};
|
|
|
|
PUBLIC const char *btrfs_util_strerror(enum btrfs_util_error err)
|
|
{
|
|
if (err < 0 || err >= sizeof(error_messages) / sizeof(error_messages[0]))
|
|
return NULL;
|
|
return error_messages[err];
|
|
}
|