void ext2fs_free_generic_bitmap(ext2fs_inode_bitmap bitmap)
{
if (!bitmap || (bitmap->magic != EXT2_ET_MAGIC_GENERIC_BITMAP))
return;
bitmap->magic = 0;
if (bitmap->description) {
ext2fs_free_mem(&bitmap->description);
bitmap->description = 0;
}
if (bitmap->bitmap) {
ext2fs_free_mem(&bitmap->bitmap);
bitmap->bitmap = 0;
}
ext2fs_free_mem(&bitmap);
}
/*
* When caller uses this function to retrieve the inline data, it must
* allocate a buffer which has the size of inline data. The size of
* inline data can be know by ext2fs_inline_data_get_size().
*/
errcode_t ext2fs_inline_data_get(ext2_filsys fs, ext2_ino_t ino,
struct ext2_inode *inode,
void *buf, size_t *size)
{
struct ext2_inode inode_buf;
struct ext2_inline_data data;
errcode_t retval;
if (!inode) {
retval = ext2fs_read_inode(fs, ino, &inode_buf);
if (retval)
return retval;
inode = &inode_buf;
}
data.fs = fs;
data.ino = ino;
retval = ext2fs_inline_data_ea_get(&data);
if (retval)
return retval;
memcpy(buf, (void *)inode->i_block, EXT4_MIN_INLINE_DATA_SIZE);
if (data.ea_size > 0)
memcpy(buf + EXT4_MIN_INLINE_DATA_SIZE,
data.ea_data, data.ea_size);
if (size)
*size = EXT4_MIN_INLINE_DATA_SIZE + data.ea_size;
ext2fs_free_mem(&data.ea_data);
return 0;
}
/*
* Create an extent table
*/
errcode_t ext2fs_create_extent_table(ext2_extent *ret_extent, __u64 size)
{
ext2_extent extent;
errcode_t retval;
retval = ext2fs_get_mem(sizeof(struct _ext2_extent), &extent);
if (retval)
return retval;
memset(extent, 0, sizeof(struct _ext2_extent));
extent->size = size ? size : 50;
extent->cursor = 0;
extent->num = 0;
extent->sorted = 1;
retval = ext2fs_get_array(sizeof(struct ext2_extent_entry),
extent->size, &extent->list);
if (retval) {
ext2fs_free_mem(&extent);
return retval;
}
memset(extent->list, 0,
sizeof(struct ext2_extent_entry) * extent->size);
*ret_extent = extent;
return 0;
}
/*
* Helper function for making a badblocks list
*/
static errcode_t make_u32_list(int size, int num, u32 *list,
ext2_u32_list *ret)
{
ext2_u32_list bb;
errcode_t retval;
retval = ext2fs_get_mem(sizeof(struct ext2_struct_u32_list), &bb);
if (retval)
return retval;
memset(bb, 0, sizeof(struct ext2_struct_u32_list));
bb->magic = EXT2_ET_MAGIC_BADBLOCKS_LIST;
bb->size = size ? size : 10;
bb->num = num;
retval = ext2fs_get_mem(bb->size * sizeof(blk_t), &bb->list);
if (!bb->list) {
ext2fs_free_mem(&bb);
return retval;
}
if (list)
memcpy(bb->list, list, bb->size * sizeof(blk_t));
else
memset(bb->list, 0, bb->size * sizeof(blk_t));
*ret = bb;
return 0;
}
errcode_t ext2fs_extent_free_path(ext2_extent_path_t path)
{
EXT2_CHECK_MAGIC(path, EXT2_ET_MAGIC_EXTENT_PATH);
ext2fs_free_mem(&path);
return 0;
}
void ext2fs_free_generic_bitmap(ext2fs_inode_bitmap bitmap)
{
if (check_magic(bitmap))
return;
bitmap->magic = 0;
if (bitmap->description) {
ext2fs_free_mem(&bitmap->description);
bitmap->description = 0;
}
if (bitmap->bitmap) {
ext2fs_free_mem(&bitmap->bitmap);
bitmap->bitmap = 0;
}
ext2fs_free_mem(&bitmap);
}
/*
* Begin functions to handle an inode's extent information
*/
extern void ext2fs_extent_free(ext2_extent_handle_t handle)
{
int i;
if (!handle)
return;
if (handle->path) {
for (i=1; i <= handle->max_depth; i++) {
if (handle->path[i].buf)
ext2fs_free_mem(&handle->path[i].buf);
}
ext2fs_free_mem(&handle->path);
}
ext2fs_free_mem(&handle);
}
static errcode_t follow_link(ext2_filsys fs, ext2_ino_t root, ext2_ino_t dir,
ext2_ino_t inode, int link_count,
char *buf, ext2_ino_t *res_inode)
{
char *pathname;
char *buffer = 0;
errcode_t retval;
struct ext2_inode ei;
blk64_t blk;
#ifdef NAMEI_DEBUG
printf("follow_link: root=%lu, dir=%lu, inode=%lu, lc=%d\n",
root, dir, inode, link_count);
#endif
retval = ext2fs_read_inode (fs, inode, &ei);
if (retval) return retval;
if (!LINUX_S_ISLNK (ei.i_mode)) {
*res_inode = inode;
return 0;
}
if (link_count++ >= EXT2FS_MAX_NESTED_LINKS)
return EXT2_ET_SYMLINK_LOOP;
if (ext2fs_inode_data_blocks(fs,&ei)) {
retval = ext2fs_bmap2(fs, inode, &ei, NULL, 0, 0, NULL, &blk);
if (retval)
return retval;
retval = ext2fs_get_mem(fs->blocksize, &buffer);
if (retval)
return retval;
retval = io_channel_read_blk64(fs->io, blk, 1, buffer);
if (retval) {
ext2fs_free_mem(&buffer);
return retval;
}
pathname = buffer;
} else
pathname = (char *)&(ei.i_block[0]);
retval = open_namei(fs, root, dir, pathname, ei.i_size, 1,
link_count, buf, res_inode);
if (buffer)
ext2fs_free_mem(&buffer);
return retval;
}
void ext2fs_u32_list_iterate_end(ext2_u32_iterate iter)
{
if (!iter || (iter->magic != EXT2_ET_MAGIC_BADBLOCKS_ITERATE))
return;
iter->bb = 0;
ext2fs_free_mem(&iter);
}
/* Free the cache buffers */
static void free_cache(struct unix_private_data *data)
{
struct unix_cache *cache;
int i;
data->access_time = 0;
for (i=0, cache = data->cache; i < CACHE_SIZE; i++, cache++) {
cache->block = 0;
cache->access_time = 0;
cache->dirty = 0;
cache->in_use = 0;
if (cache->buf)
ext2fs_free_mem(&cache->buf);
}
if (data->bounce)
ext2fs_free_mem(&data->bounce);
}
void brelse(struct buffer_head *bh)
{
if (bh->b_dirty)
ll_rw_block(WRITE, 1, &bh);
jfs_debug(3, "freeing block %lu/%p (total %d)\n",
(unsigned long) bh->b_blocknr, (void *) bh, --bh_count);
ext2fs_free_mem(&bh);
}
errcode_t quota_write_inode(quota_ctx_t qctx, int qtype)
{
int retval = 0, i;
dict_t *dict;
ext2_filsys fs;
struct quota_handle *h = NULL;
int fmt = QFMT_VFS_V1;
if (!qctx)
return 0;
fs = qctx->fs;
retval = ext2fs_get_mem(sizeof(struct quota_handle), &h);
if (retval) {
log_err("Unable to allocate quota handle", "");
goto out;
}
ext2fs_read_bitmaps(fs);
for (i = 0; i < MAXQUOTAS; i++) {
if ((qtype != -1) && (i != qtype))
continue;
dict = qctx->quota_dict[i];
if (!dict)
continue;
retval = quota_file_create(h, fs, i, fmt);
if (retval < 0) {
log_err("Cannot initialize io on quotafile", "");
continue;
}
write_dquots(dict, h);
retval = quota_file_close(h);
if (retval < 0) {
log_err("Cannot finish IO on new quotafile: %s",
strerror(errno));
if (h->qh_qf.e2_file)
ext2fs_file_close(h->qh_qf.e2_file);
quota_inode_truncate(fs, h->qh_qf.ino);
continue;
}
/* Set quota inode numbers in superblock. */
quota_set_sb_inum(fs, h->qh_qf.ino, i);
ext2fs_mark_super_dirty(fs);
ext2fs_mark_bb_dirty(fs);
fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
}
ext2fs_write_bitmaps(fs);
out:
if (h)
ext2fs_free_mem(&h);
return retval;
}
static void check_block_bitmap_checksum(e2fsck_t ctx)
{
struct problem_context pctx;
char *buf;
dgrp_t i;
int nbytes;
blk64_t blk_itr;
errcode_t retval;
if (!EXT2_HAS_RO_COMPAT_FEATURE(ctx->fs->super,
EXT4_FEATURE_RO_COMPAT_METADATA_CSUM))
return;
/* If bitmap is dirty from being fixed, checksum will be corrected */
if (ext2fs_test_bb_dirty(ctx->fs))
return;
nbytes = (size_t)(EXT2_CLUSTERS_PER_GROUP(ctx->fs->super) / 8);
retval = ext2fs_get_memalign(ctx->fs->blocksize, ctx->fs->blocksize,
&buf);
if (retval) {
com_err(ctx->program_name, 0,
_("check_block_bitmap_checksum: Memory allocation error"));
fatal_error(ctx, 0);
}
clear_problem_context(&pctx);
for (i = 0; i < ctx->fs->group_desc_count; i++) {
if (ext2fs_bg_flags_test(ctx->fs, i, EXT2_BG_BLOCK_UNINIT))
continue;
blk_itr = EXT2FS_B2C(ctx->fs,
ctx->fs->super->s_first_data_block) +
(i * (nbytes << 3));
retval = ext2fs_get_block_bitmap_range2(ctx->fs->block_map,
blk_itr, nbytes << 3,
buf);
if (retval)
break;
if (ext2fs_block_bitmap_csum_verify(ctx->fs, i, buf, nbytes))
continue;
pctx.group = i;
if (!fix_problem(ctx, PR_5_BLOCK_BITMAP_CSUM_INVALID, &pctx))
continue;
/*
* Fixing one checksum will rewrite all of them. The bitmap
* will be checked against the one we made during pass1 for
* discrepancies, and fixed if need be.
*/
ext2fs_mark_bb_dirty(ctx->fs);
break;
}
ext2fs_free_mem(&buf);
}
/*
* Free the dir_info structure when it isn't needed any more.
*/
void e2fsck_free_dir_info(e2fsck_t ctx)
{
if (ctx->dir_info) {
if (ctx->dir_info->tdb)
tdb_close(ctx->dir_info->tdb);
if (ctx->dir_info->tdb_fn) {
unlink(ctx->dir_info->tdb_fn);
free(ctx->dir_info->tdb_fn);
}
if (ctx->dir_info->array)
ext2fs_free_mem(&ctx->dir_info->array);
ctx->dir_info->array = 0;
ctx->dir_info->size = 0;
ctx->dir_info->count = 0;
ext2fs_free_mem(&ctx->dir_info);
ctx->dir_info = 0;
}
}
static errcode_t ext3u_write_inode(ext2_filsys fs, ext2_ino_t undel_ino, int flags)
{
char *buf;
errcode_t retval;
struct ext2_inode inode;
struct mk_ext3u_struct es;
__u32 num_blocks = ext3u_fifo_reserved + ext3u_skip_reserved + ext3u_index_reserved + 1;
if ((retval = ext3u_create_superblock(fs, flags, &buf)))
return retval;
if ((retval = ext2fs_read_bitmaps(fs)))
return retval;
if ((retval = ext2fs_read_inode(fs, undel_ino, &inode)))
return retval;
if (inode.i_blocks > 0)
return EEXIST;
es.goal = 0;
es.num_blocks = num_blocks;
es.newblocks = 0;
es.buf = buf;
es.err = 0;
es.zero_count = 0;
retval = ext2fs_block_iterate2(fs, undel_ino, BLOCK_FLAG_APPEND, 0, mk_ext3u_proc, &es);
if (es.err) {
retval = es.err;
goto errout;
}
if (es.zero_count) {
retval = ext2fs_zero_blocks(fs, es.blk_to_zero, es.zero_count, 0, 0);
if (retval)
goto errout;
}
if ((retval = ext2fs_read_inode(fs, undel_ino, &inode)))
goto errout;
inode.i_size += fs->blocksize * num_blocks;
ext2fs_iblk_add_blocks(fs, &inode, es.newblocks);
inode.i_mtime = inode.i_ctime = fs->now ? fs->now : time(0);
inode.i_links_count = 1;
inode.i_mode = LINUX_S_IFREG | 0600;
if ((retval = ext2fs_write_inode(fs, undel_ino, &inode)))
goto errout;
retval = 0;
errout:
ext2fs_free_mem(&buf);
return retval;
}
static errcode_t make_bitmap(__u32 start, __u32 end, __u32 real_end,
const char *descr, char *init_map,
ext2fs_generic_bitmap *ret)
{
ext2fs_generic_bitmap bitmap;
errcode_t retval;
size_t size;
retval = ext2fs_get_mem(sizeof(struct ext2fs_struct_generic_bitmap),
&bitmap);
if (retval)
return retval;
bitmap->magic = EXT2_ET_MAGIC_GENERIC_BITMAP;
bitmap->fs = NULL;
bitmap->start = start;
bitmap->end = end;
bitmap->real_end = real_end;
bitmap->base_error_code = EXT2_ET_BAD_GENERIC_MARK;
if (descr) {
retval = ext2fs_get_mem(strlen(descr)+1, &bitmap->description);
if (retval) {
ext2fs_free_mem(&bitmap);
return retval;
}
strcpy(bitmap->description, descr);
} else
bitmap->description = 0;
size = (size_t) (((bitmap->real_end - bitmap->start) / 8) + 1);
retval = ext2fs_get_mem(size, &bitmap->bitmap);
if (retval) {
ext2fs_free_mem(&bitmap->description);
ext2fs_free_mem(&bitmap);
return retval;
}
if (init_map)
memcpy(bitmap->bitmap, init_map, size);
else
memset(bitmap->bitmap, 0, size);
*ret = bitmap;
return 0;
}
/*
* Free the dx_dir_info structure when it isn't needed any more.
*/
void e2fsck_free_dx_dir_info(e2fsck_t ctx)
{
int i;
struct dx_dir_info *dir;
if (ctx->dx_dir_info) {
dir = ctx->dx_dir_info;
for (i=0; i < ctx->dx_dir_info_count; i++) {
if (dir->dx_block) {
ext2fs_free_mem((void **) &dir->dx_block);
dir->dx_block = 0;
}
}
ext2fs_free_mem((void **) &ctx->dx_dir_info);
ctx->dx_dir_info = 0;
}
ctx->dx_dir_info_size = 0;
ctx->dx_dir_info_count = 0;
}
static errcode_t follow_link(ext2_filsys fs, ext2_ino_t root, ext2_ino_t dir,
ext2_ino_t inode, int link_count,
char *buf, ext2_ino_t *res_inode)
{
char *pathname;
char *buffer = 0;
errcode_t retval;
struct ext2_inode ei;
#ifdef NAMEI_DEBUG
printf("follow_link: root=%lu, dir=%lu, inode=%lu, lc=%d\n",
root, dir, inode, link_count);
#endif
retval = ext2fs_read_inode (fs, inode, &ei);
if (retval) return retval;
if (!LINUX_S_ISLNK (ei.i_mode)) {
*res_inode = inode;
return 0;
}
if (link_count++ > 5) {
return EXT2_ET_SYMLINK_LOOP;
}
/* FIXME-64: Actually, this is FIXME EXTENTS */
if (ext2fs_inode_data_blocks(fs,&ei)) {
retval = ext2fs_get_mem(fs->blocksize, &buffer);
if (retval)
return retval;
retval = io_channel_read_blk(fs->io, ei.i_block[0], 1, buffer);
if (retval) {
ext2fs_free_mem(&buffer);
return retval;
}
pathname = buffer;
} else
pathname = (char *)&(ei.i_block[0]);
retval = open_namei(fs, root, dir, pathname, ei.i_size, 1,
link_count, buf, res_inode);
if (buffer)
ext2fs_free_mem(&buffer);
return retval;
}
void e2fsck_free_context(e2fsck_t ctx)
{
if (!ctx)
return;
e2fsck_reset_context(ctx);
if (ctx->blkid)
blkid_put_cache(ctx->blkid);
if (ctx->profile)
profile_release(ctx->profile);
if (ctx->filesystem_name)
ext2fs_free_mem(&ctx->filesystem_name);
if (ctx->device_name)
ext2fs_free_mem(&ctx->device_name);
ext2fs_free_mem(&ctx);
}
void e2fsck_free_context(e2fsck_t ctx)
{
if (!ctx)
return;
e2fsck_reset_context(ctx);
if (ctx->blkid)
blkid_put_cache(ctx->blkid);
ext2fs_free_mem(&ctx);
}
void do_set_mmp_value(int argc, char *argv[])
{
const char *usage = "<field> <value>\n"
"\t\"set_mmp_value -l\" will list the names of "
"MMP fields\n\twhich can be set.";
static struct field_set_info *smmp;
struct mmp_struct *mmp_s;
errcode_t retval;
if (argc == 2 && strcmp(argv[1], "-l") == 0) {
print_possible_fields(mmp_fields);
return;
}
if (current_fs->super->s_mmp_block == 0) {
com_err(argv[0], 0, "no MMP block allocated\n");
return;
}
if (common_args_process(argc, argv, 2, 3, "set_mmp_value",
usage, CHECK_FS_RW))
return;
mmp_s = current_fs->mmp_buf;
if (mmp_s == NULL) {
retval = ext2fs_get_mem(current_fs->blocksize, &mmp_s);
if (retval) {
com_err(argv[0], retval, "allocating MMP buffer\n");
return;
}
retval = ext2fs_mmp_read(current_fs,
current_fs->super->s_mmp_block, mmp_s);
if (retval) {
com_err(argv[0], retval, "reading MMP block %llu.\n",
(long long)current_fs->super->s_mmp_block);
ext2fs_free_mem(mmp_s);
return;
}
current_fs->mmp_buf = mmp_s;
}
smmp = find_field(mmp_fields, argv[1]);
if (smmp == 0) {
com_err(argv[0], 0, "invalid field specifier: %s", argv[1]);
return;
}
set_mmp = *mmp_s;
if (smmp->func(smmp, argv[1], argv[2]) == 0) {
ext2fs_mmp_write(current_fs, current_fs->super->s_mmp_block,
&set_mmp);
*mmp_s = set_mmp;
}
}
static errcode_t inode_close(io_channel channel)
{
struct inode_private_data *data;
errcode_t retval = 0;
EXT2_CHECK_MAGIC(channel, EXT2_ET_MAGIC_IO_CHANNEL);
data = (struct inode_private_data *) channel->private_data;
EXT2_CHECK_MAGIC(data, EXT2_ET_MAGIC_INODE_IO_CHANNEL);
if (--channel->refcount > 0)
return 0;
retval = ext2fs_file_close(data->file);
ext2fs_free_mem(&channel->private_data);
if (channel->name)
ext2fs_free_mem(&channel->name);
ext2fs_free_mem(&channel);
return retval;
}
/*
* This function creates a journal using direct I/O routines.
*/
static errcode_t write_journal_inode(ext2_filsys fs, ext2_ino_t journal_ino,
blk_t size, int flags)
{
char *buf;
errcode_t retval;
struct ext2_inode inode;
struct mkjournal_struct es;
if ((retval = ext2fs_create_journal_superblock(fs, size, flags, &buf)))
return retval;
if ((retval = ext2fs_read_bitmaps(fs)))
return retval;
if ((retval = ext2fs_read_inode(fs, journal_ino, &inode)))
return retval;
if (inode.i_blocks > 0)
return EEXIST;
es.num_blocks = size;
es.newblocks = 0;
es.buf = buf;
es.err = 0;
retval = ext2fs_block_iterate2(fs, journal_ino, BLOCK_FLAG_APPEND,
0, mkjournal_proc, &es);
if (es.err) {
retval = es.err;
goto errout;
}
if ((retval = ext2fs_read_inode(fs, journal_ino, &inode)))
goto errout;
inode.i_size += fs->blocksize * size;
inode.i_blocks += (fs->blocksize / 512) * es.newblocks;
inode.i_mtime = inode.i_ctime = time(0);
inode.i_links_count = 1;
inode.i_mode = LINUX_S_IFREG | 0600;
if ((retval = ext2fs_write_inode(fs, journal_ino, &inode)))
goto errout;
retval = 0;
memcpy(fs->super->s_jnl_blocks, inode.i_block, EXT2_N_BLOCKS*4);
fs->super->s_jnl_blocks[16] = inode.i_size;
fs->super->s_jnl_backup_type = EXT3_JNL_BACKUP_BLOCKS;
ext2fs_mark_super_dirty(fs);
errout:
ext2fs_free_mem(&buf);
return retval;
}
void ext2fs_free_icount(ext2_icount_t icount)
{
if (!icount)
return;
icount->magic = 0;
if (icount->list)
ext2fs_free_mem(&icount->list);
if (icount->single)
ext2fs_free_inode_bitmap(icount->single);
if (icount->multiple)
ext2fs_free_inode_bitmap(icount->multiple);
if (icount->tdb)
tdb_close(icount->tdb);
if (icount->tdb_fn) {
unlink(icount->tdb_fn);
free(icount->tdb_fn);
}
ext2fs_free_mem(&icount);
}
static errcode_t test_close(io_channel channel)
{
struct test_private_data *data;
errcode_t retval = 0;
EXT2_CHECK_MAGIC(channel, EXT2_ET_MAGIC_IO_CHANNEL);
data = (struct test_private_data *) channel->private_data;
EXT2_CHECK_MAGIC(data, EXT2_ET_MAGIC_TEST_IO_CHANNEL);
if (--channel->refcount > 0)
return 0;
if (data->real)
retval = io_channel_close(data->real);
ext2fs_free_mem((void **) &channel->private_data);
if (channel->name)
ext2fs_free_mem((void **) &channel->name);
ext2fs_free_mem((void **) &channel);
return retval;
}
static int expand_dir_proc(ext2_filsys fs,
blk_t *blocknr,
e2_blkcnt_t blockcnt,
blk_t ref_block EXT2FS_ATTR((unused)),
int ref_offset EXT2FS_ATTR((unused)),
void *priv_data)
{
struct expand_dir_struct *es = (struct expand_dir_struct *) priv_data;
blk_t new_blk;
static blk_t last_blk = 0;
char *block;
errcode_t retval;
if (*blocknr) {
last_blk = *blocknr;
return 0;
}
retval = ext2fs_new_block(fs, last_blk, 0, &new_blk);
if (retval) {
es->err = retval;
return BLOCK_ABORT;
}
if (blockcnt > 0) {
retval = ext2fs_new_dir_block(fs, 0, 0, &block);
if (retval) {
es->err = retval;
return BLOCK_ABORT;
}
es->done = 1;
retval = ext2fs_write_dir_block(fs, new_blk, block);
} else {
retval = ext2fs_get_mem(fs->blocksize, &block);
if (retval) {
es->err = retval;
return BLOCK_ABORT;
}
memset(block, 0, fs->blocksize);
retval = io_channel_write_blk(fs->io, new_blk, 1, block);
}
if (retval) {
es->err = retval;
return BLOCK_ABORT;
}
ext2fs_free_mem(&block);
*blocknr = new_blk;
ext2fs_block_alloc_stats(fs, new_blk, +1);
es->newblocks++;
if (es->done)
return (BLOCK_CHANGED | BLOCK_ABORT);
else
return BLOCK_CHANGED;
}
errcode_t ext2fs_write_dir_block3(ext2_filsys fs, blk64_t block,
void *inbuf, int flags EXT2FS_ATTR((unused)))
{
#ifdef WORDS_BIGENDIAN
errcode_t retval;
char *p, *end;
char *buf = 0;
unsigned int rec_len;
struct ext2_dir_entry *dirent;
retval = ext2fs_get_mem(fs->blocksize, &buf);
if (retval)
return retval;
memcpy(buf, inbuf, fs->blocksize);
p = buf;
end = buf + fs->blocksize;
while (p < end) {
dirent = (struct ext2_dir_entry *) p;
if ((retval = ext2fs_get_rec_len(fs, dirent, &rec_len)) != 0)
return retval;
if ((rec_len < 8) ||
(rec_len % 4)) {
ext2fs_free_mem(&buf);
return (EXT2_ET_DIR_CORRUPTED);
}
p += rec_len;
dirent->inode = ext2fs_swab32(dirent->inode);
dirent->rec_len = ext2fs_swab16(dirent->rec_len);
dirent->name_len = ext2fs_swab16(dirent->name_len);
if (flags & EXT2_DIRBLOCK_V2_STRUCT)
dirent->name_len = ext2fs_swab16(dirent->name_len);
}
retval = io_channel_write_blk64(fs->io, block, 1, buf);
ext2fs_free_mem(&buf);
return retval;
#else
return io_channel_write_blk(fs->io, block, 1, (char *) inbuf);
#endif
}
/*
* helper function for making a new directory block list (for
* initialize and copy).
*/
static errcode_t make_dblist(ext2_filsys fs, ext2_ino_t size,
ext2_ino_t count,
struct ext2_db_entry2 *list,
ext2_dblist *ret_dblist)
{
ext2_dblist dblist = NULL;
errcode_t retval;
ext2_ino_t num_dirs;
size_t len;
EXT2_CHECK_MAGIC(fs, EXT2_ET_MAGIC_EXT2FS_FILSYS);
if ((ret_dblist == 0) && fs->dblist &&
(fs->dblist->magic == EXT2_ET_MAGIC_DBLIST))
return 0;
retval = ext2fs_get_mem(sizeof(struct ext2_struct_dblist), &dblist);
if (retval)
goto cleanup;
memset(dblist, 0, sizeof(struct ext2_struct_dblist));
dblist->magic = EXT2_ET_MAGIC_DBLIST;
dblist->fs = fs;
if (size)
dblist->size = size;
else {
retval = ext2fs_get_num_dirs(fs, &num_dirs);
if (retval)
goto cleanup;
dblist->size = (num_dirs * 2) + 12;
}
len = (size_t) sizeof(struct ext2_db_entry2) * dblist->size;
dblist->count = count;
retval = ext2fs_get_array(dblist->size, sizeof(struct ext2_db_entry2),
&dblist->list);
if (retval)
goto cleanup;
if (list)
memcpy(dblist->list, list, len);
else
memset(dblist->list, 0, len);
if (ret_dblist)
*ret_dblist = dblist;
else
fs->dblist = dblist;
return 0;
cleanup:
if (dblist)
ext2fs_free_mem(&dblist);
return retval;
}
void ext2fs_free_generic_bmap(ext2fs_generic_bitmap bmap)
{
if (!bmap)
return;
if (EXT2FS_IS_32_BITMAP(bmap)) {
ext2fs_free_generic_bitmap(bmap);
return;
}
if (!EXT2FS_IS_64_BITMAP(bmap))
return;
bmap->bitmap_ops->free_bmap(bmap);
if (bmap->description) {
ext2fs_free_mem(&bmap->description);
bmap->description = 0;
}
bmap->magic = 0;
ext2fs_free_mem(&bmap);
}
static void handle_exit(void)
{
struct exit_data *ed;
for (ed = items + nr_items - 1; ed >= items; ed--) {
if (ed->func == NULL)
continue;
ed->func(ed->data);
}
ext2fs_free_mem(&items);
nr_items = 0;
}