109 lines
2.1 KiB
C
109 lines
2.1 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 Library
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* General Public License, version 2.
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* %End-Header%
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*/
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#include "config.h"
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#include <stdio.h>
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#if HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#include "ext2_fs.h"
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#include "ext2fsP.h"
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#include "hashmap.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->image_io != fs->io) {
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if (fs->image_io)
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io_channel_close(fs->image_io);
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}
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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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ext2fs_free_mem(&fs->device_name);
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if (fs->super)
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ext2fs_free_mem(&fs->super);
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if (fs->orig_super)
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ext2fs_free_mem(&fs->orig_super);
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if (fs->group_desc)
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ext2fs_free_mem(&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->image_header)
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ext2fs_free_mem(&fs->image_header);
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if (fs->badblocks)
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ext2fs_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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if (fs->icache)
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ext2fs_free_inode_cache(fs->icache);
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if (fs->mmp_buf)
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ext2fs_free_mem(&fs->mmp_buf);
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if (fs->mmp_cmp)
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ext2fs_free_mem(&fs->mmp_cmp);
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if (fs->block_sha_map)
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ext2fs_hashmap_free(fs->block_sha_map);
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fs->magic = 0;
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ext2fs_zero_blocks2(NULL, 0, 0, NULL, NULL);
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ext2fs_free_mem(&fs);
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}
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/*
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* This procedure frees a badblocks list.
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*/
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void ext2fs_u32_list_free(ext2_u32_list bb)
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{
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if (bb->magic != EXT2_ET_MAGIC_BADBLOCKS_LIST)
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return;
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if (bb->list)
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ext2fs_free_mem(&bb->list);
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bb->list = 0;
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ext2fs_free_mem(&bb);
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}
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void ext2fs_badblocks_list_free(ext2_badblocks_list bb)
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{
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ext2fs_u32_list_free((ext2_u32_list) bb);
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}
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/*
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* Free a directory block list
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*/
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void ext2fs_free_dblist(ext2_dblist dblist)
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{
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if (!dblist || (dblist->magic != EXT2_ET_MAGIC_DBLIST))
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return;
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if (dblist->list)
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ext2fs_free_mem(&dblist->list);
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dblist->list = 0;
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if (dblist->fs && dblist->fs->dblist == dblist)
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dblist->fs->dblist = 0;
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dblist->magic = 0;
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ext2fs_free_mem(&dblist);
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}
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