mirror of https://github.com/vitalif/e2fsprogs
85 lines
1.6 KiB
C
85 lines
1.6 KiB
C
/*
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* freefs.c --- free an ext2 filesystem
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*
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* Copyright (C) 1993, 1994, 1995, 1996 Theodore Ts'o.
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*
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* %Begin-Header%
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* This file may be redistributed under the terms of the GNU Public
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* License.
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* %End-Header%
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*/
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#include <stdio.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <linux/ext2_fs.h>
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#include "ext2fs.h"
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void ext2fs_free(ext2_filsys fs)
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{
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if (!fs || (fs->magic != EXT2_ET_MAGIC_EXT2FS_FILSYS))
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return;
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if (fs->io) {
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io_channel_close(fs->io);
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}
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if (fs->device_name)
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free(fs->device_name);
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if (fs->super)
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free(fs->super);
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if (fs->group_desc)
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free(fs->group_desc);
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if (fs->block_map)
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ext2fs_free_block_bitmap(fs->block_map);
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if (fs->inode_map)
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ext2fs_free_inode_bitmap(fs->inode_map);
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if (fs->badblocks)
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badblocks_list_free(fs->badblocks);
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fs->badblocks = 0;
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if (fs->dblist)
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ext2fs_free_dblist(fs->dblist);
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fs->magic = 0;
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free(fs);
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}
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void ext2fs_free_generic_bitmap(ext2fs_inode_bitmap bitmap)
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{
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if (!bitmap || (bitmap->magic != EXT2_ET_MAGIC_GENERIC_BITMAP))
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return;
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bitmap->magic = 0;
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if (bitmap->description) {
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free(bitmap->description);
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bitmap->description = 0;
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}
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if (bitmap->bitmap) {
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free(bitmap->bitmap);
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bitmap->bitmap = 0;
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}
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free(bitmap);
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}
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void ext2fs_free_inode_bitmap(ext2fs_inode_bitmap bitmap)
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{
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if (!bitmap || (bitmap->magic != EXT2_ET_MAGIC_INODE_BITMAP))
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return;
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bitmap->magic = EXT2_ET_MAGIC_GENERIC_BITMAP;
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ext2fs_free_generic_bitmap(bitmap);
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}
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void ext2fs_free_block_bitmap(ext2fs_block_bitmap bitmap)
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{
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if (!bitmap || (bitmap->magic != EXT2_ET_MAGIC_BLOCK_BITMAP))
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return;
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bitmap->magic = EXT2_ET_MAGIC_GENERIC_BITMAP;
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ext2fs_free_generic_bitmap(bitmap);
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}
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