| 518 | } |
| 519 | |
| 520 | static void *unpack_raw_entry(struct object_entry *obj, |
| 521 | off_t *ofs_offset, |
| 522 | struct object_id *ref_oid, |
| 523 | struct object_id *oid) |
| 524 | { |
| 525 | unsigned char *p; |
| 526 | size_t size, c; |
| 527 | off_t base_offset; |
| 528 | unsigned shift; |
| 529 | void *data; |
| 530 | |
| 531 | obj->idx.offset = consumed_bytes; |
| 532 | input_crc32 = crc32(0, NULL, 0); |
| 533 | |
| 534 | p = fill(1); |
| 535 | c = *p; |
| 536 | use(1); |
| 537 | obj->type = (c >> 4) & 7; |
| 538 | size = (c & 15); |
| 539 | shift = 4; |
| 540 | while (c & 0x80) { |
| 541 | if ((bitsizeof(size_t) - 7) < shift) |
| 542 | die(_("object size too large for this platform")); |
| 543 | p = fill(1); |
| 544 | c = *p; |
| 545 | use(1); |
| 546 | size += (c & 0x7f) << shift; |
| 547 | shift += 7; |
| 548 | } |
| 549 | obj->size = size; |
| 550 | |
| 551 | switch (obj->type) { |
| 552 | case OBJ_REF_DELTA: |
| 553 | oidread(ref_oid, fill(the_hash_algo->rawsz), |
| 554 | the_repository->hash_algo); |
| 555 | use(the_hash_algo->rawsz); |
| 556 | break; |
| 557 | case OBJ_OFS_DELTA: |
| 558 | p = fill(1); |
| 559 | c = *p; |
| 560 | use(1); |
| 561 | base_offset = c & 127; |
| 562 | while (c & 128) { |
| 563 | base_offset += 1; |
| 564 | if (!base_offset || MSB(base_offset, 7)) |
| 565 | bad_object(obj->idx.offset, _("offset value overflow for delta base object")); |
| 566 | p = fill(1); |
| 567 | c = *p; |
| 568 | use(1); |
| 569 | base_offset = (base_offset << 7) + (c & 127); |
| 570 | } |
| 571 | *ofs_offset = obj->idx.offset - base_offset; |
| 572 | if (*ofs_offset <= 0 || *ofs_offset >= obj->idx.offset) |
| 573 | bad_object(obj->idx.offset, _("delta base offset is out of bound")); |
| 574 | break; |
| 575 | case OBJ_COMMIT: |
| 576 | case OBJ_TREE: |
| 577 | case OBJ_BLOB: |
no test coverage detected