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2008-01-24 Bean <bean123ch@gmail.com>

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* fs/ufs.c (GRUB_UFS_VOLNAME_LEN): New macro.
        (grub_ufs_sblock): New member volume name.
        (grub_ufs_find_file): Fix string copy bug.
        (grub_ufs_label): Implement this function properly.

        * fs/hfs.c (grub_hfs_cnid_type): New enum.
        (grub_hfs_iterate_records): Use the correct file number for extents
        and catalog file. Fix problem in next index calculation.
        (grub_hfs_find_node): Replace recursive function call with loop.
        (grub_hfs_iterate_dir): Replace recursive function call with loop.
This commit is contained in:
bean 2008-01-23 20:21:18 +00:00
parent 15c80c098c
commit bac332a11a
3 changed files with 87 additions and 30 deletions
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65
fs/hfs.c
View file

@ -43,6 +43,16 @@ enum
GRUB_HFS_FILETYPE_FILE = 2
};
/* Catalog node ID (CNID). */
enum grub_hfs_cnid_type
{
GRUB_HFS_CNID_ROOT_PARENT = 1,
GRUB_HFS_CNID_ROOT = 2,
GRUB_HFS_CNID_EXT = 3,
GRUB_HFS_CNID_CAT = 4,
GRUB_HFS_CNID_BAD = 5
};
/* A node descriptor. This is the header of every node. */
struct grub_hfs_node
{
@ -447,7 +457,8 @@ grub_hfs_iterate_records (struct grub_hfs_data *data, int type, int idx,
/* Read the node into memory. */
blk = grub_hfs_block (data, dat,
0, idx / (data->blksz / nodesize), 0);
(type == 0) ? GRUB_HFS_CNID_CAT : GRUB_HFS_CNID_EXT,
idx / (data->blksz / nodesize), 0);
blk += (idx % (data->blksz / nodesize));
if (grub_errno)
return grub_errno;
@ -481,10 +492,7 @@ grub_hfs_iterate_records (struct grub_hfs_data *data, int type, int idx,
return 0;
}
if (idx % (data->blksz / nodesize) == 0)
idx = grub_be_to_cpu32 (node.node.next);
else
idx++;
idx = grub_be_to_cpu32 (node.node.next);
} while (idx && this);
return 0;
@ -501,6 +509,7 @@ grub_hfs_find_node (struct grub_hfs_data *data, char *key,
{
int found = -1;
int isleaf = 0;
int done = 0;
auto int node_found (struct grub_hfs_node *, struct grub_hfs_record *);
@ -532,6 +541,8 @@ grub_hfs_find_node (struct grub_hfs_data *data, char *key,
/* Found it!!!! */
if (cmp == 0)
{
done = 1;
grub_memcpy (datar, rec->data,
rec->datalen < datalen ? rec->datalen : datalen);
return 1;
@ -541,16 +552,20 @@ grub_hfs_find_node (struct grub_hfs_data *data, char *key,
return 0;
}
if (grub_hfs_iterate_records (data, type, idx, 0, node_found))
return 0;
if (found == -1)
return 0;
do
{
found = -1;
if (isleaf)
return 1;
if (grub_hfs_iterate_records (data, type, idx, 0, node_found))
return 0;
return grub_hfs_find_node (data, key, found, type, datar, datalen);
if (found == -1)
return 0;
idx = found;
} while (! isleaf);
return done;
}
@ -607,21 +622,23 @@ grub_hfs_iterate_dir (struct grub_hfs_data *data, grub_uint32_t root_idx,
return hook (rec);
}
if (grub_hfs_iterate_records (data, 0, root_idx, 0, node_found))
return grub_errno;
do
{
found = -1;
if (grub_hfs_iterate_records (data, 0, root_idx, 0, node_found))
return grub_errno;
if (found == -1)
return 0;
if (found == -1)
return 0;
root_idx = found;
} while (! isleaf);
/* If there was a matching record in this leaf node, continue the
iteration until the last record was found. */
if (isleaf)
{
grub_hfs_iterate_records (data, 0, next, 1, it_dir);
return grub_errno;
}
return grub_hfs_iterate_dir (data, found, dir, hook);
grub_hfs_iterate_records (data, 0, next, 1, it_dir);
return grub_errno;
}