static int verify_length_and_hash(emu_file *file, const char *name, UINT32 explength, const util::hash_collection &hashes)
{
int retVal = 0;
if (file==nullptr) return 0;
// verify length
UINT32 actlength = file->size();
if (explength != actlength)
{
osd_printf_error("%s WRONG LENGTH (expected: %d found: %d)\n", name, explength, actlength);
retVal++;
}
// If there is no good dump known, write it
util::hash_collection &acthashes = file->hashes(hashes.hash_types().c_str());
if (hashes.flag(util::hash_collection::FLAG_NO_DUMP))
{
osd_printf_error("%s NO GOOD DUMP KNOWN\n", name);
}
// verify checksums
else if (hashes != acthashes)
{
// otherwise, it's just bad
osd_printf_error("%s WRONG CHECKSUMS:\n", name);
dump_wrong_and_correct_checksums(hashes, acthashes);
retVal++;
}
// If it matches, but it is actually a bad dump, write it
else if (hashes.flag(util::hash_collection::FLAG_BAD_DUMP))
{
osd_printf_error("%s NEEDS REDUMP\n",name);
}
return retVal;
}
void a78_partialhash(util::hash_collection &dest, const unsigned char *data,
unsigned long length, const char *functions)
{
if (length <= 128)
return;
dest.compute(&data[128], length - 128, functions);
}
void device_image_interface::device_compute_hash(util::hash_collection &hashes, const void *data, size_t length, const char *types) const
{
/* retrieve the partial hash func */
device_image_partialhash_func partialhash = get_partial_hash();
/* compute the hash */
if (partialhash)
partialhash(hashes, (const unsigned char*)data, length, types);
else
hashes.compute(reinterpret_cast<const UINT8 *>(data), length, types);
}
static bool read_hash_config(const char *hash_path, const util::hash_collection &hashes, const char *sysname, std::string &result)
{
/* open a file */
emu_file file(hash_path, OPEN_FLAG_READ);
if (file.open(sysname, ".hsi") != osd_file::error::NONE)
{
return false;
}
pugi::xml_document doc;
pugi::xml_parse_result res = doc.load_file(file.fullpath());
if (res)
{
// Do search by CRC32 and SHA1
std::string query = "/hashfile/hash[";
auto crc = hashes.internal_string().substr(1,8);
auto sha1 = hashes.internal_string().substr(10, 40);
query += "@crc32='" + crc + "' and @sha1='" + sha1 + "']/extrainfo";
pugi::xpath_node_set tools = doc.select_nodes(query.c_str());
for (pugi::xpath_node_set::const_iterator it = tools.begin(); it != tools.end(); ++it)
{
result = it->node().first_child().value();
return true;
}
// Try search by CRC32 only
query = "/hashfile/hash[";
query += "@crc32='" + crc + "']/extrainfo";
tools = doc.select_nodes(query.c_str());
for (pugi::xpath_node_set::const_iterator it = tools.begin(); it != tools.end(); ++it)
{
result = it->node().first_child().value();
return true;
}
}
return false;
}
void device_image_interface::run_hash(void (*partialhash)(util::hash_collection &, const unsigned char *, unsigned long, const char *),
util::hash_collection &hashes, const char *types)
{
UINT32 size;
dynamic_buffer buf;
hashes.reset();
size = (UINT32) length();
buf.resize(size);
memset(&buf[0], 0, size);
// read the file
fseek(0, SEEK_SET);
fread(&buf[0], size);
if (partialhash)
partialhash(hashes, &buf[0], size, types);
else
hashes.compute(&buf[0], size, types);
// cleanup
fseek(0, SEEK_SET);
}
void media_identifier::file_info::match(
device_t const &device,
romload::file const &rom,
util::hash_collection const &hashes)
{
if (hashes == m_hashes)
{
m_matches.emplace_back(
device.shortname(),
device.name(),
rom.get_name(),
hashes.flag(util::hash_collection::FLAG_BAD_DUMP),
device.owner());
}
}
void rom_load_manager::verify_length_and_hash(const char *name, UINT32 explength, const util::hash_collection &hashes)
{
/* we've already complained if there is no file */
if (m_file == nullptr)
return;
/* verify length */
UINT32 actlength = m_file->size();
if (explength != actlength)
{
m_errorstring.append(string_format("%s WRONG LENGTH (expected: %08x found: %08x)\n", name, explength, actlength));
m_warnings++;
}
/* If there is no good dump known, write it */
util::hash_collection &acthashes = m_file->hashes(hashes.hash_types().c_str());
if (hashes.flag(util::hash_collection::FLAG_NO_DUMP))
{
m_errorstring.append(string_format("%s NO GOOD DUMP KNOWN\n", name));
m_knownbad++;
}
/* verify checksums */
else if (hashes != acthashes)
{
/* otherwise, it's just bad */
m_errorstring.append(string_format("%s WRONG CHECKSUMS:\n", name));
dump_wrong_and_correct_checksums(hashes, acthashes);
m_warnings++;
}
/* If it matches, but it is actually a bad dump, write it */
else if (hashes.flag(util::hash_collection::FLAG_BAD_DUMP))
{
m_errorstring.append(string_format("%s ROM NEEDS REDUMP\n", name));
m_knownbad++;
}
}
void media_identifier::file_info::match(
std::string const &list,
software_info const &software,
rom_entry const &rom,
util::hash_collection const &hashes)
{
if (hashes == m_hashes)
{
m_matches.emplace_back(
util::string_format("%s:%s", list, software.shortname()),
std::string(software.longname()),
ROM_GETNAME(&rom),
hashes.flag(util::hash_collection::FLAG_BAD_DUMP),
false);
}
}
static void dump_wrong_and_correct_checksums(const util::hash_collection &hashes, const util::hash_collection &acthashes)
{
osd_printf_error(" EXPECTED: %s\n", hashes.macro_string().c_str());
osd_printf_error(" FOUND: %s\n", acthashes.macro_string().c_str());
}
void media_identifier::match_hashes(std::vector<file_info> &info)
{
std::unordered_set<std::string> listnames;
// iterate over drivers
m_drivlist.reset();
while (m_drivlist.next())
{
// iterate over regions and files within the region
device_t &device = m_drivlist.config()->root_device();
for (romload::region const ®ion : romload::entries(device.rom_region()).get_regions())
{
for (romload::file const &rom : region.get_files())
{
util::hash_collection const romhashes(rom.get_hashdata());
if (!romhashes.flag(util::hash_collection::FLAG_NO_DUMP))
{
for (file_info &file : info)
file.match(device, rom, romhashes);
}
}
}
// next iterate over softlists
for (software_list_device &swlistdev : software_list_device_iterator(device))
{
if (listnames.insert(swlistdev.list_name()).second)
{
for (software_info const &swinfo : swlistdev.get_info())
{
for (software_part const &part : swinfo.parts())
{
for (rom_entry const *region = part.romdata().data(); region; region = rom_next_region(region))
{
for (rom_entry const *rom = rom_first_file(region); rom; rom = rom_next_file(rom))
{
util::hash_collection romhashes(ROM_GETHASHDATA(rom));
if (!romhashes.flag(util::hash_collection::FLAG_NO_DUMP))
{
for (file_info &file : info)
file.match(swlistdev.list_name(), swinfo, *rom, romhashes);
}
}
}
}
}
}
}
}
// iterator over devices
machine_config config(GAME_NAME(___empty), m_drivlist.options());
for (device_type type : registered_device_types)
{
// iterate over regions and files within the region
device_t *const device = config.device_add(&config.root_device(), "_tmp", type, 0);
for (romload::region const ®ion : romload::entries(device->rom_region()).get_regions())
{
for (romload::file const &rom : region.get_files())
{
util::hash_collection const romhashes(rom.get_hashdata());
if (!romhashes.flag(util::hash_collection::FLAG_NO_DUMP))
{
for (file_info &file : info)
file.match(*device, rom, romhashes);
}
}
}
config.device_remove(&config.root_device(), "_tmp");
}
}
void rom_load_manager::dump_wrong_and_correct_checksums(const util::hash_collection &hashes, const util::hash_collection &acthashes)
{
m_errorstring.append(string_format(" EXPECTED: %s\n", hashes.macro_string().c_str()));
m_errorstring.append(string_format(" FOUND: %s\n", acthashes.macro_string().c_str()));
}