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Diffstat (limited to 'lib/sqfs/xattr_reader.c')
-rw-r--r--lib/sqfs/xattr_reader.c45
1 files changed, 45 insertions, 0 deletions
diff --git a/lib/sqfs/xattr_reader.c b/lib/sqfs/xattr_reader.c
index 97cf821..1469a90 100644
--- a/lib/sqfs/xattr_reader.c
+++ b/lib/sqfs/xattr_reader.c
@@ -36,6 +36,50 @@ struct sqfs_xattr_reader_t {
sqfs_file_t *file;
};
+static sqfs_object_t *xattr_reader_copy(const sqfs_object_t *obj)
+{
+ const sqfs_xattr_reader_t *xr = (const sqfs_xattr_reader_t *)obj;
+ sqfs_xattr_reader_t *copy = malloc(sizeof(*copy));
+
+ if (copy == NULL)
+ return NULL;
+
+ memcpy(copy, xr, sizeof(*xr));
+
+ if (xr->kvrd != NULL) {
+ copy->kvrd = sqfs_copy(xr->kvrd);
+ if (copy->kvrd == NULL)
+ goto fail_kvrd;
+ }
+
+ if (xr->idrd != NULL) {
+ copy->idrd = sqfs_copy(xr->idrd);
+ if (copy->idrd == NULL)
+ goto fail_idrd;
+ }
+
+ if (xr->id_block_starts != NULL) {
+ copy->id_block_starts = alloc_array(sizeof(sqfs_u64),
+ xr->num_id_blocks);
+ if (copy->id_block_starts == NULL)
+ goto fail_idblk;
+
+ memcpy(copy->id_block_starts, xr->id_block_starts,
+ sizeof(sqfs_u64) * xr->num_id_blocks);
+ }
+
+ return (sqfs_object_t *)copy;
+fail_idblk:
+ if (copy->idrd != NULL)
+ sqfs_destroy(copy->idrd);
+fail_idrd:
+ if (copy->kvrd != NULL)
+ sqfs_destroy(copy->kvrd);
+fail_kvrd:
+ free(copy);
+ return NULL;
+}
+
static void xattr_reader_destroy(sqfs_object_t *obj)
{
sqfs_xattr_reader_t *xr = (sqfs_xattr_reader_t *)obj;
@@ -267,6 +311,7 @@ sqfs_xattr_reader_t *sqfs_xattr_reader_create(sqfs_file_t *file,
if (xr == NULL)
return NULL;
+ ((sqfs_object_t *)xr)->copy = xattr_reader_copy;
((sqfs_object_t *)xr)->destroy = xattr_reader_destroy;
xr->file = file;
xr->super = super;