From 5dced3d1b3deca80e01415a2e35dc7972dcbfae7 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Fri, 19 Apr 2024 11:25:10 +0200 Subject: Adding upstream version 1.47.0. Signed-off-by: Daniel Baumann --- lib/ext2fs/freefs.c | 108 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 108 insertions(+) create mode 100644 lib/ext2fs/freefs.c (limited to 'lib/ext2fs/freefs.c') diff --git a/lib/ext2fs/freefs.c b/lib/ext2fs/freefs.c new file mode 100644 index 0000000..68b8e9a --- /dev/null +++ b/lib/ext2fs/freefs.c @@ -0,0 +1,108 @@ +/* + * freefs.c --- free an ext2 filesystem + * + * Copyright (C) 1993, 1994, 1995, 1996 Theodore Ts'o. + * + * %Begin-Header% + * This file may be redistributed under the terms of the GNU Library + * General Public License, version 2. + * %End-Header% + */ + +#include "config.h" +#include +#if HAVE_UNISTD_H +#include +#endif + +#include "ext2_fs.h" +#include "ext2fsP.h" +#include "hashmap.h" + +void ext2fs_free(ext2_filsys fs) +{ + if (!fs || (fs->magic != EXT2_ET_MAGIC_EXT2FS_FILSYS)) + return; + if (fs->image_io != fs->io) { + if (fs->image_io) + io_channel_close(fs->image_io); + } + if (fs->io) { + io_channel_close(fs->io); + } + if (fs->device_name) + ext2fs_free_mem(&fs->device_name); + if (fs->super) + ext2fs_free_mem(&fs->super); + if (fs->orig_super) + ext2fs_free_mem(&fs->orig_super); + if (fs->group_desc) + ext2fs_free_mem(&fs->group_desc); + if (fs->block_map) + ext2fs_free_block_bitmap(fs->block_map); + if (fs->inode_map) + ext2fs_free_inode_bitmap(fs->inode_map); + if (fs->image_header) + ext2fs_free_mem(&fs->image_header); + + if (fs->badblocks) + ext2fs_badblocks_list_free(fs->badblocks); + fs->badblocks = 0; + + if (fs->dblist) + ext2fs_free_dblist(fs->dblist); + + if (fs->icache) + ext2fs_free_inode_cache(fs->icache); + + if (fs->mmp_buf) + ext2fs_free_mem(&fs->mmp_buf); + if (fs->mmp_cmp) + ext2fs_free_mem(&fs->mmp_cmp); + + if (fs->block_sha_map) + ext2fs_hashmap_free(fs->block_sha_map); + + fs->magic = 0; + + ext2fs_zero_blocks2(NULL, 0, 0, NULL, NULL); + ext2fs_free_mem(&fs); +} + +/* + * This procedure frees a badblocks list. + */ +void ext2fs_u32_list_free(ext2_u32_list bb) +{ + if (bb->magic != EXT2_ET_MAGIC_BADBLOCKS_LIST) + return; + + if (bb->list) + ext2fs_free_mem(&bb->list); + bb->list = 0; + ext2fs_free_mem(&bb); +} + +void ext2fs_badblocks_list_free(ext2_badblocks_list bb) +{ + ext2fs_u32_list_free((ext2_u32_list) bb); +} + + +/* + * Free a directory block list + */ +void ext2fs_free_dblist(ext2_dblist dblist) +{ + if (!dblist || (dblist->magic != EXT2_ET_MAGIC_DBLIST)) + return; + + if (dblist->list) + ext2fs_free_mem(&dblist->list); + dblist->list = 0; + if (dblist->fs && dblist->fs->dblist == dblist) + dblist->fs->dblist = 0; + dblist->magic = 0; + ext2fs_free_mem(&dblist); +} + -- cgit v1.2.3