static void verify_length_and_hash(struct rom_load_data *romdata, const char *name, UINT32 explength, const char* hash)
{
UINT32 actlength;
const char* acthash;
/* we've already complained if there is no file */
if (!romdata->file)
return;
/* get the length and CRC from the file */
actlength = mame_fsize(romdata->file);
acthash = mame_fhash(romdata->file);
/* verify length */
if (explength != actlength)
{
sprintf(&romdata->errorbuf[strlen(romdata->errorbuf)], "%-12s WRONG LENGTH (expected: %08x found: %08x)\n", name, explength, actlength);
romdata->warnings++;
}
/* If there is no good dump known, write it */
if (hash_data_has_info(hash, HASH_INFO_NO_DUMP))
{
sprintf(&romdata->errorbuf[strlen(romdata->errorbuf)], "%-12s NO GOOD DUMP KNOWN\n", name);
romdata->warnings++;
}
/* verify checksums */
else if (!hash_data_is_equal(hash, acthash, 0))
{
/* otherwise, it's just bad */
sprintf(&romdata->errorbuf[strlen(romdata->errorbuf)], "%-12s WRONG CHECKSUMS:\n", name);
dump_wrong_and_correct_checksums(romdata, hash, acthash);
romdata->warnings++;
}
/* If it matches, but it is actually a bad dump, write it */
else if (hash_data_has_info(hash, HASH_INFO_BAD_DUMP))
{
sprintf(&romdata->errorbuf[strlen(romdata->errorbuf)], "%-12s ROM NEEDS REDUMP\n",name);
romdata->warnings++;
}
}
static void audit_one_rom(core_options *options, const rom_entry *rom, const char *regiontag, const game_driver *gamedrv, UINT32 validation, audit_record *record)
{
const game_driver *drv;
UINT32 crc = 0;
UINT8 crcs[4];
int has_crc;
/* fill in the record basics */
record->type = AUDIT_FILE_ROM;
record->name = ROM_GETNAME(rom);
record->exphash = ROM_GETHASHDATA(rom);
record->length = 0;
record->explength = rom_file_size(rom);
/* see if we have a CRC and extract it if so */
has_crc = hash_data_extract_binary_checksum(record->exphash, HASH_CRC, crcs);
if (has_crc)
crc = (crcs[0] << 24) | (crcs[1] << 16) | (crcs[2] << 8) | crcs[3];
/* find the file and checksum it, getting the file length along the way */
for (drv = gamedrv; drv != NULL; drv = driver_get_clone(drv))
{
file_error filerr;
mame_file *file;
/* open the file if we can */
astring fname(drv->name, PATH_SEPARATOR, ROM_GETNAME(rom));
if (has_crc)
filerr = mame_fopen_crc_options(options, libretro_content_directory, fname, crc, OPEN_FLAG_READ | OPEN_FLAG_NO_PRELOAD, &file);
else
filerr = mame_fopen_options(options, libretro_content_directory, fname, OPEN_FLAG_READ | OPEN_FLAG_NO_PRELOAD, &file);
/* if we got it, extract the hash and length */
if (filerr == FILERR_NONE)
{
hash_data_copy(record->hash, mame_fhash(file, validation));
record->length = (UINT32)mame_fsize(file);
mame_fclose(file);
break;
}
}
/* if not found, check the region as a backup */
if (record->length == 0 && regiontag != NULL)
{
file_error filerr;
mame_file *file;
/* open the file if we can */
astring fname(regiontag, PATH_SEPARATOR, ROM_GETNAME(rom));
if (has_crc)
filerr = mame_fopen_crc_options(options, libretro_content_directory, fname, crc, OPEN_FLAG_READ | OPEN_FLAG_NO_PRELOAD, &file);
else
filerr = mame_fopen_options(options, libretro_content_directory, fname, OPEN_FLAG_READ | OPEN_FLAG_NO_PRELOAD, &file);
/* if we got it, extract the hash and length */
if (filerr == FILERR_NONE)
{
hash_data_copy(record->hash, mame_fhash(file, validation));
record->length = (UINT32)mame_fsize(file);
mame_fclose(file);
}
}
/* if we failed to find the file, set the appropriate status */
if (record->length == 0)
{
const game_driver *parent;
/* no good dump */
if (hash_data_has_info(record->exphash, HASH_INFO_NO_DUMP))
set_status(record, AUDIT_STATUS_NOT_FOUND, SUBSTATUS_NOT_FOUND_NODUMP);
/* optional ROM */
else if (ROM_ISOPTIONAL(rom))
set_status(record, AUDIT_STATUS_NOT_FOUND, SUBSTATUS_NOT_FOUND_OPTIONAL);
/* not found and used by parent */
else if (rom_used_by_parent(gamedrv, rom, &parent))
set_status(record, AUDIT_STATUS_NOT_FOUND, (parent->flags & GAME_IS_BIOS_ROOT) ? SUBSTATUS_NOT_FOUND_BIOS : SUBSTATUS_NOT_FOUND_PARENT);
/* just plain old not found */
else
set_status(record, AUDIT_STATUS_NOT_FOUND, SUBSTATUS_NOT_FOUND);
}
/* if we did find the file, do additional verification */
else
{
/* length mismatch */
if (record->explength != record->length)
set_status(record, AUDIT_STATUS_FOUND_INVALID, SUBSTATUS_FOUND_WRONG_LENGTH);
/* found but needs a dump */
else if (hash_data_has_info(record->exphash, HASH_INFO_NO_DUMP))
set_status(record, AUDIT_STATUS_GOOD, SUBSTATUS_FOUND_NODUMP);
/* incorrect hash */
else if (!hash_data_is_equal(record->exphash, record->hash, 0))
set_status(record, AUDIT_STATUS_FOUND_INVALID, SUBSTATUS_FOUND_BAD_CHECKSUM);
/* correct hash but needs a redump */
else if (hash_data_has_info(record->exphash, HASH_INFO_BAD_DUMP))
set_status(record, AUDIT_STATUS_GOOD, SUBSTATUS_GOOD_NEEDS_REDUMP);
/* just plain old good */
else
set_status(record, AUDIT_STATUS_GOOD, SUBSTATUS_GOOD);
}
}
static int audit_one_rom(const rom_entry *rom, const game_driver *gamedrv, UINT32 validation, audit_record *record)
{
const game_driver *drv;
const rom_entry *chunk;
UINT32 crc = 0;
UINT8 crcs[4];
int has_crc;
/* fill in the record basics */
record->type = AUDIT_FILE_ROM;
record->name = ROM_GETNAME(rom);
record->exphash = ROM_GETHASHDATA(rom);
/* compute the expected length by summing the chunks */
for (chunk = rom_first_chunk(rom); chunk; chunk = rom_next_chunk(chunk))
record->explength += ROM_GETLENGTH(chunk);
/* see if we have a CRC and extract it if so */
has_crc = hash_data_extract_binary_checksum(record->exphash, HASH_CRC, crcs);
if (has_crc)
crc = (crcs[0] << 24) | (crcs[1] << 16) | (crcs[2] << 8) | crcs[3];
/* find the file and checksum it, getting the file length along the way */
for (drv = gamedrv; drv != NULL; drv = driver_get_clone(drv))
{
mame_file_error filerr;
mame_file *file;
char *fname;
/* open the file if we can */
fname = assemble_3_strings(drv->name, PATH_SEPARATOR, ROM_GETNAME(rom));
if (has_crc)
filerr = mame_fopen_crc(SEARCHPATH_ROM, fname, crc, OPEN_FLAG_READ, &file);
else
filerr = mame_fopen(SEARCHPATH_ROM, fname, OPEN_FLAG_READ, &file);
free(fname);
/* if we got it, extract the hash and length */
if (filerr == FILERR_NONE)
{
hash_data_copy(record->hash, mame_fhash(file, validation));
record->length = (UINT32)mame_fsize(file);
mame_fclose(file);
break;
}
}
/* if we failed to find the file, set the appropriate status */
if (drv == NULL)
{
const game_driver *parent;
/* no good dump */
if (hash_data_has_info(record->exphash, HASH_INFO_NO_DUMP))
set_status(record, AUDIT_STATUS_NOT_FOUND, SUBSTATUS_NOT_FOUND_NODUMP);
/* optional ROM */
else if (ROM_ISOPTIONAL(rom))
set_status(record, AUDIT_STATUS_NOT_FOUND, SUBSTATUS_NOT_FOUND_OPTIONAL);
/* not found and used by parent */
else if (rom_used_by_parent(gamedrv, rom, &parent))
set_status(record, AUDIT_STATUS_NOT_FOUND, (parent->flags & NOT_A_DRIVER) ? SUBSTATUS_NOT_FOUND_BIOS : SUBSTATUS_NOT_FOUND_PARENT);
/* just plain old not found */
else
set_status(record, AUDIT_STATUS_NOT_FOUND, SUBSTATUS_NOT_FOUND);
}
/* if we did find the file, do additional verification */
else
{
/* length mismatch */
if (record->explength != record->length)
set_status(record, AUDIT_STATUS_FOUND_INVALID, SUBSTATUS_FOUND_WRONG_LENGTH);
/* found but needs a dump */
else if (hash_data_has_info(record->exphash, HASH_INFO_NO_DUMP))
set_status(record, AUDIT_STATUS_GOOD, SUBSTATUS_FOUND_NODUMP);
/* incorrect hash */
else if (!hash_data_is_equal(record->exphash, record->hash, 0))
set_status(record, AUDIT_STATUS_FOUND_INVALID, SUBSTATUS_FOUND_BAD_CHECKSUM);
/* correct hash but needs a redump */
else if (hash_data_has_info(record->exphash, HASH_INFO_BAD_DUMP))
set_status(record, AUDIT_STATUS_GOOD, SUBSTATUS_GOOD_NEEDS_REDUMP);
/* just plain old good */
else
set_status(record, AUDIT_STATUS_GOOD, SUBSTATUS_GOOD);
}
/* return TRUE if we found anything at all */
return (drv != NULL);
}