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Crypto: read sfo in memory instead of tmp file

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This commit is contained in:
Megamouse 2020-04-25 13:38:20 +02:00
parent 773448a8f6
commit b923eb058a
1 changed files with 6 additions and 15 deletions
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21
rpcs3/Crypto/unpkg.cpp
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@ -509,9 +509,7 @@ package_error package_reader::check_target_app_version()
}
// Read the package's PARAM.SFO
const std::string tmp_path = Emu.GetCacheDir() + "tmp.SFO";
if (fs::file tmp{ tmp_path, fs::rewrite })
if (fs::file tmp = fs::make_stream<std::vector<uchar>>())
{
for (u64 pos = 0; pos < entry.file_size; pos += BUF_SIZE)
{
@ -519,27 +517,20 @@ package_error package_reader::check_target_app_version()
if (decrypt(entry.file_offset + pos, block_size, is_psp ? PKG_AES_KEY2 : dec_key.data()) != block_size)
{
pkg_log.error("Failed to extract file %s", tmp_path);
pkg_log.error("Failed to decrypt PARAM.SFO file");
return package_error::other;
}
if (tmp.write(buf.get(), block_size) != block_size)
{
pkg_log.error("Failed to write file %s", tmp_path);
pkg_log.error("Failed to write to temporary PARAM.SFO file");
return package_error::other;
}
}
tmp.close();
tmp.seek(0);
const fs::file sfo_file(tmp_path);
if (!sfo_file)
{
pkg_log.error("Failed to read file %s", tmp_path);
return package_error::other;
}
const auto psf = psf::load_object(sfo_file);
const auto psf = psf::load_object(tmp);
const auto category = psf::get_string(psf, "CATEGORY", "");
const auto title_id = psf::get_string(psf, "TITLE_ID", "");
@ -646,7 +637,7 @@ package_error package_reader::check_target_app_version()
return package_error::app_version;
}
pkg_log.error("Failed to create file %s", tmp_path);
pkg_log.error("Failed to create temporary PARAM.SFO file");
return package_error::other;
}