1 files changed, 55 insertions, 0 deletions
diff --git a/libbtrfsutil/errors.c b/libbtrfsutil/errors.c
new file mode 100644
index 00000000..634edc65
--- /dev/null
+++ b/libbtrfsutil/errors.c
@@ -0,0 +1,55 @@
+/*
+ * 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];
+}