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Fix unaligned pointer access

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Martin
2021-11-28 18:37:55 +01:00
parent 12b78b6d5a
commit 72e7267054
1 changed files with 4 additions and 4 deletions
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8
miniz_zip.c
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@@ -4191,10 +4191,10 @@ mz_bool mz_zip_writer_add_from_zip_reader(mz_zip_archive *pZip, mz_zip_archive *
if (pZip->m_pState->m_zip64) if (pZip->m_pState->m_zip64)
{ {
/* dest is zip64, so upgrade the data descriptor */ /* dest is zip64, so upgrade the data descriptor */
const mz_uint32 *pSrc_descriptor = (const mz_uint32 *)((const mz_uint8 *)pBuf + (has_id ? sizeof(mz_uint32) : 0)); const mz_uint8 *pSrc_descriptor = (const mz_uint8 *)pBuf + (has_id ? sizeof(mz_uint32) : 0);
const mz_uint32 src_crc32 = pSrc_descriptor[0]; const mz_uint32 src_crc32 = MZ_READ_LE32(pSrc_descriptor);
const mz_uint64 src_comp_size = pSrc_descriptor[1]; const mz_uint64 src_comp_size = MZ_READ_LE32(pSrc_descriptor + sizeof(mz_uint32));
const mz_uint64 src_uncomp_size = pSrc_descriptor[2]; const mz_uint64 src_uncomp_size = MZ_READ_LE32(pSrc_descriptor + 2*sizeof(mz_uint32));
mz_write_le32((mz_uint8 *)pBuf, MZ_ZIP_DATA_DESCRIPTOR_ID); mz_write_le32((mz_uint8 *)pBuf, MZ_ZIP_DATA_DESCRIPTOR_ID);
mz_write_le32((mz_uint8 *)pBuf + sizeof(mz_uint32) * 1, src_crc32); mz_write_le32((mz_uint8 *)pBuf + sizeof(mz_uint32) * 1, src_crc32);