Function nth_midxed_offset

midx.c:561–582

}

off_t nth_midxed_offset(struct multi_pack_index *m, uint32_t pos)
{
	const unsigned char *offset_data;
	uint32_t offset32;

	pos = midx_for_object(&m, pos);

	offset_data = m->chunk_object_offsets + (off_t)pos * MIDX_CHUNK_OFFSET_WIDTH;
	offset32 = get_be32(offset_data + sizeof(uint32_t));

	if (m->chunk_large_offsets && offset32 & MIDX_LARGE_OFFSET_NEEDED) {
		if (sizeof(off_t) < sizeof(uint64_t))
			die(_("multi-pack-index stores a 64-bit offset, but off_t is too small"));

		offset32 ^= MIDX_LARGE_OFFSET_NEEDED;
		if (offset32 >= m->chunk_large_offsets_len / sizeof(uint64_t))
			die(_("multi-pack-index large offset out of bounds"));
		return get_be64(m->chunk_large_offsets + sizeof(uint64_t) * offset32);
	}

	return offset32;
}

uint32_t nth_midxed_pack_int_id(struct multi_pack_index *m, uint32_t pos)
{