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Diffstat (limited to 'lib/sqfs/read_inode.c')
-rw-r--r--lib/sqfs/read_inode.c23
1 files changed, 19 insertions, 4 deletions
diff --git a/lib/sqfs/read_inode.c b/lib/sqfs/read_inode.c
index 565cb5a..8230138 100644
--- a/lib/sqfs/read_inode.c
+++ b/lib/sqfs/read_inode.c
@@ -50,13 +50,26 @@ static int set_mode(sqfs_inode_t *inode)
return 0;
}
+static uint64_t get_block_count(uint64_t size, uint64_t block_size,
+ uint32_t frag_index, uint32_t frag_offset)
+{
+ uint64_t count = size / block_size;
+
+ if ((size % block_size) != 0 &&
+ (frag_index == 0xFFFFFFFF || frag_offset == 0xFFFFFFFF)) {
+ ++count;
+ }
+
+ return count;
+}
+
static sqfs_inode_generic_t *read_inode_file(meta_reader_t *ir,
sqfs_inode_t *base,
size_t block_size)
{
sqfs_inode_generic_t *out;
sqfs_inode_file_t file;
- size_t i, count;
+ uint64_t i, count;
if (meta_reader_read(ir, &file, sizeof(file)))
return NULL;
@@ -66,7 +79,8 @@ static sqfs_inode_generic_t *read_inode_file(meta_reader_t *ir,
SWAB32(file.fragment_offset);
SWAB32(file.file_size);
- count = file.file_size / block_size;
+ count = get_block_count(file.file_size, block_size,
+ file.fragment_index, file.fragment_offset);
out = calloc(1, sizeof(*out) + count * sizeof(uint32_t));
if (out == NULL) {
@@ -95,7 +109,7 @@ static sqfs_inode_generic_t *read_inode_file_ext(meta_reader_t *ir,
{
sqfs_inode_file_ext_t file;
sqfs_inode_generic_t *out;
- size_t i, count;
+ uint64_t i, count;
if (meta_reader_read(ir, &file, sizeof(file)))
return NULL;
@@ -108,7 +122,8 @@ static sqfs_inode_generic_t *read_inode_file_ext(meta_reader_t *ir,
SWAB32(file.fragment_offset);
SWAB32(file.xattr_idx);
- count = file.file_size / block_size;
+ count = get_block_count(file.file_size, block_size,
+ file.fragment_idx, file.fragment_offset);
out = calloc(1, sizeof(*out) + count * sizeof(uint32_t));
if (out == NULL) {