diff options
Diffstat (limited to 'libblkid')
| -rw-r--r-- | libblkid/libblkid.3 | 2 | ||||
| -rw-r--r-- | libblkid/src/superblocks/befs.c | 7 |
2 files changed, 8 insertions, 1 deletions
diff --git a/libblkid/libblkid.3 b/libblkid/libblkid.3 index 4a5eaa973..a9291e2cc 100644 --- a/libblkid/libblkid.3 +++ b/libblkid/libblkid.3 @@ -5,7 +5,7 @@ .\" This file may be copied under the terms of the GNU Public License. .\" .\" Created Wed Sep 14 12:02:12 2001, Andreas Dilger -.TH LIBBLKID 3 "May 2009" "util-linux" +.TH LIBBLKID 3 "May 2009" "util-linux" "Programmer's Manual" .SH NAME libblkid \- block device identification library .SH SYNOPSIS diff --git a/libblkid/src/superblocks/befs.c b/libblkid/src/superblocks/befs.c index 62414ec61..930429a58 100644 --- a/libblkid/src/superblocks/befs.c +++ b/libblkid/src/superblocks/befs.c @@ -200,9 +200,16 @@ unsigned char *get_tree_node(blkid_probe pr, const struct befs_super_block *bs, int64_t di_br_size, br_per_di_br, di_index, i_index; start -= (int64_t) FS64_TO_CPU(ds->max_indirect_range, fs_le); + di_br_size = (int64_t) FS16_TO_CPU(ds->double_indirect.len, fs_le) << FS32_TO_CPU(bs->block_shift, fs_le); + if (di_br_size == 0) + return NULL; + br_per_di_br = di_br_size / sizeof(struct block_run); + if (br_per_di_br == 0) + return NULL; + di_index = start / (br_per_di_br * di_br_size); i_index = (start % (br_per_di_br * di_br_size)) / di_br_size; start = (start % (br_per_di_br * di_br_size)) % di_br_size; |