mirror of https://github.com/vitalif/e2fsprogs
184 lines
4.5 KiB
C
184 lines
4.5 KiB
C
/*
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* bitmaps.c --- routines to read, write, and manipulate the inode and
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* block bitmaps.
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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 <stdio.h>
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#include <string.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 <fcntl.h>
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#include <time.h>
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#if HAVE_SYS_STAT_H
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#include <sys/stat.h>
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#endif
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#if HAVE_SYS_TYPES_H
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#include <sys/types.h>
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#endif
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#include "ext2_fs.h"
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#include "ext2fs.h"
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void ext2fs_free_inode_bitmap(ext2fs_inode_bitmap bitmap)
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{
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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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ext2fs_free_generic_bitmap(bitmap);
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}
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errcode_t ext2fs_copy_bitmap(ext2fs_generic_bitmap src,
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ext2fs_generic_bitmap *dest)
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{
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return (ext2fs_copy_generic_bitmap(src, dest));
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}
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void ext2fs_set_bitmap_padding(ext2fs_generic_bitmap map)
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{
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ext2fs_set_generic_bitmap_padding(map);
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}
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errcode_t ext2fs_allocate_inode_bitmap(ext2_filsys fs,
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const char *descr,
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ext2fs_inode_bitmap *ret)
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{
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__u32 start, end, real_end;
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EXT2_CHECK_MAGIC(fs, EXT2_ET_MAGIC_EXT2FS_FILSYS);
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fs->write_bitmaps = ext2fs_write_bitmaps;
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start = 1;
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end = fs->super->s_inodes_count;
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real_end = (EXT2_INODES_PER_GROUP(fs->super) * fs->group_desc_count);
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return (ext2fs_make_generic_bitmap(EXT2_ET_MAGIC_INODE_BITMAP, fs,
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start, end, real_end,
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descr, 0, ret));
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}
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errcode_t ext2fs_allocate_block_bitmap(ext2_filsys fs,
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const char *descr,
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ext2fs_block_bitmap *ret)
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{
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__u32 start, end, real_end;
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EXT2_CHECK_MAGIC(fs, EXT2_ET_MAGIC_EXT2FS_FILSYS);
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fs->write_bitmaps = ext2fs_write_bitmaps;
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start = fs->super->s_first_data_block;
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end = fs->super->s_blocks_count-1;
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real_end = (EXT2_BLOCKS_PER_GROUP(fs->super)
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* fs->group_desc_count)-1 + start;
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return (ext2fs_make_generic_bitmap(EXT2_ET_MAGIC_BLOCK_BITMAP, fs,
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start, end, real_end,
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descr, 0, ret));
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}
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errcode_t ext2fs_fudge_inode_bitmap_end(ext2fs_inode_bitmap bitmap,
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ext2_ino_t end, ext2_ino_t *oend)
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{
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return (ext2fs_fudge_generic_bitmap_end(bitmap,
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EXT2_ET_MAGIC_INODE_BITMAP,
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EXT2_ET_FUDGE_INODE_BITMAP_END,
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end, oend));
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}
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errcode_t ext2fs_fudge_block_bitmap_end(ext2fs_block_bitmap bitmap,
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blk_t end, blk_t *oend)
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{
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return (ext2fs_fudge_generic_bitmap_end(bitmap,
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EXT2_ET_MAGIC_BLOCK_BITMAP,
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EXT2_ET_FUDGE_BLOCK_BITMAP_END,
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end, oend));
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}
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void ext2fs_clear_inode_bitmap(ext2fs_inode_bitmap bitmap)
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{
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ext2fs_clear_generic_bitmap(bitmap);
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}
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void ext2fs_clear_block_bitmap(ext2fs_block_bitmap bitmap)
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{
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ext2fs_clear_generic_bitmap(bitmap);
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}
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errcode_t ext2fs_resize_inode_bitmap(__u32 new_end, __u32 new_real_end,
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ext2fs_inode_bitmap bmap)
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{
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return (ext2fs_resize_generic_bitmap(EXT2_ET_MAGIC_INODE_BITMAP,
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new_end, new_real_end, bmap));
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}
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errcode_t ext2fs_resize_block_bitmap(__u32 new_end, __u32 new_real_end,
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ext2fs_block_bitmap bmap)
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{
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return (ext2fs_resize_generic_bitmap(EXT2_ET_MAGIC_BLOCK_BITMAP,
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new_end, new_real_end, bmap));
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}
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errcode_t ext2fs_compare_block_bitmap(ext2fs_block_bitmap bm1,
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ext2fs_block_bitmap bm2)
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{
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return (ext2fs_compare_generic_bitmap(EXT2_ET_MAGIC_BLOCK_BITMAP,
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EXT2_ET_NEQ_BLOCK_BITMAP,
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bm1, bm2));
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}
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errcode_t ext2fs_compare_inode_bitmap(ext2fs_inode_bitmap bm1,
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ext2fs_inode_bitmap bm2)
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{
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return (ext2fs_compare_generic_bitmap(EXT2_ET_MAGIC_INODE_BITMAP,
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EXT2_ET_NEQ_INODE_BITMAP,
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bm1, bm2));
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}
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errcode_t ext2fs_set_inode_bitmap_range(ext2fs_inode_bitmap bmap,
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ext2_ino_t start, unsigned int num,
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void *in)
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{
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return (ext2fs_set_generic_bitmap_range(bmap,
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EXT2_ET_MAGIC_INODE_BITMAP,
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start, num, in));
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}
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errcode_t ext2fs_get_inode_bitmap_range(ext2fs_inode_bitmap bmap,
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ext2_ino_t start, unsigned int num,
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void *out)
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{
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return (ext2fs_get_generic_bitmap_range(bmap,
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EXT2_ET_MAGIC_INODE_BITMAP,
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start, num, out));
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}
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errcode_t ext2fs_set_block_bitmap_range(ext2fs_block_bitmap bmap,
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blk_t start, unsigned int num,
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void *in)
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{
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return (ext2fs_set_generic_bitmap_range(bmap,
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EXT2_ET_MAGIC_BLOCK_BITMAP,
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start, num, in));
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}
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errcode_t ext2fs_get_block_bitmap_range(ext2fs_block_bitmap bmap,
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blk_t start, unsigned int num,
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void *out)
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{
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return (ext2fs_get_generic_bitmap_range(bmap,
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EXT2_ET_MAGIC_BLOCK_BITMAP,
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start, num, out));
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}
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