diff options
Diffstat (limited to 'lib/sqfs/xattr_reader.c')
| -rw-r--r-- | lib/sqfs/xattr_reader.c | 45 |
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; |