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Update miniz_zip.c

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Mengwei Liu 2024-11-06 22:50:21 -08:00 committed by GitHub
parent bcb9e9bb21
commit 8ba317b180
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GPG Key ID: B5690EEEBB952194
1 changed files with 21 additions and 6 deletions
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miniz_zip.c
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@ -854,8 +854,7 @@ static int mz_stat64(const char *path, struct __stat64 *buffer)
filename_size = MZ_READ_LE16(p + MZ_ZIP_CDH_FILENAME_LEN_OFS);
ext_data_size = MZ_READ_LE16(p + MZ_ZIP_CDH_EXTRA_LEN_OFS);
if ((!pZip->m_pState->m_zip64_has_extended_info_fields) &&
(ext_data_size) &&
if ((ext_data_size) &&
(MZ_MAX(MZ_MAX(comp_size, decomp_size), local_header_ofs) == MZ_UINT32_MAX))
{
/* Attempt to find zip64 extended information field in the entry's extra data */
@ -916,9 +915,25 @@ static int mz_stat64(const char *path, struct __stat64 *buffer)
pExtra_data += sizeof(mz_uint16) * 2 + field_data_size;
extra_size_remaining = extra_size_remaining - sizeof(mz_uint16) * 2 - field_data_size;
} while (extra_size_remaining);
// Read zip64 extended information field into comp_size and decomp_size
comp_size = MZ_READ_LE64(pExtra_data + sizeof(mz_uint16) * 2);
decomp_size = MZ_READ_LE64(pExtra_data + sizeof(mz_uint16) * 2 + sizeof(mz_uint64));
// Read zip64 extended information field into comp_size, decomp_size, local_header_ofs
// Header ID: 0x0001, field size: 2 bytes
extra_size_remaining -= sizeof(mz_uint16) * 2;
pExtra_data += sizeof(mz_uint16) * 2;
if (decomp_size == MZ_UINT32_MAX && extra_size_remaining >= sizeof(mz_uint64)) {
decomp_size = MZ_READ_LE64(pExtra_data);
extra_size_remaining -= sizeof(mz_uint64);
pExtra_data += sizeof(mz_uint64);
}
if (comp_size == MZ_UINT32_MAX && extra_size_remaining >= sizeof(mz_uint64)) {
comp_size = MZ_READ_LE64(pExtra_data);
extra_size_remaining -= sizeof(mz_uint64);
pExtra_data += sizeof(mz_uint64);
}
if (local_header_ofs == MZ_UINT32_MAX && extra_size_remaining >= sizeof(mz_uint64)) {
local_header_ofs = MZ_READ_LE64(pExtra_data);
extra_size_remaining -= sizeof(mz_uint64);
pExtra_data += sizeof(mz_uint64);
}
MZ_FREE(buf);
}
}
@ -936,7 +951,7 @@ static int mz_stat64(const char *path, struct __stat64 *buffer)
if (comp_size != MZ_UINT32_MAX)
{
if (((mz_uint64)MZ_READ_LE32(p + MZ_ZIP_CDH_LOCAL_HEADER_OFS) + MZ_ZIP_LOCAL_DIR_HEADER_SIZE + comp_size) > pZip->m_archive_size)
if ((local_header_ofs + MZ_ZIP_LOCAL_DIR_HEADER_SIZE + comp_size) > pZip->m_archive_size)
return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
}