audit_record *media_auditor::audit_one_disk(const rom_entry *rom)
{
// allocate and append a new record
audit_record &record = m_record_list.append(*global_alloc(audit_record(*rom, audit_record::MEDIA_DISK)));
// open the disk
emu_file *source_file;
chd_file *source;
chd_error err = open_disk_image(m_enumerator.options(), &m_enumerator.driver(), rom, &source_file, &source, NULL);
// if we succeeded, get the hashes
if (err == CHDERR_NONE)
{
static const UINT8 nullhash[20] = { 0 };
chd_header header = *chd_get_header(source);
hash_collection hashes;
// if there's an MD5 or SHA1 hash, add them to the output hash
if (memcmp(nullhash, header.md5, sizeof(header.md5)) != 0)
hashes.add_from_buffer(hash_collection::HASH_MD5, header.md5, sizeof(header.md5));
if (memcmp(nullhash, header.sha1, sizeof(header.sha1)) != 0)
hashes.add_from_buffer(hash_collection::HASH_SHA1, header.sha1, sizeof(header.sha1));
// update the actual values
record.set_actual(hashes);
// close the file and release the source
chd_close(source);
global_free(source_file);
}
// compute the final status
compute_status(record, rom, err == CHDERR_NONE);
return &record;
}
audit_record *media_auditor::audit_one_disk(const rom_entry *rom, const char *locationtag)
{
// allocate and append a new record
audit_record &record = m_record_list.append(*global_alloc(audit_record(*rom, audit_record::MEDIA_DISK)));
// open the disk
chd_file source;
chd_error err = chd_error(open_disk_image(m_enumerator.options(), &m_enumerator.driver(), rom, source, locationtag));
// if we succeeded, get the hashes
if (err == CHDERR_NONE)
{
hash_collection hashes;
// if there's a SHA1 hash, add them to the output hash
if (source.sha1() != sha1_t::null)
hashes.add_sha1(source.sha1());
// update the actual values
record.set_actual(hashes);
}
// compute the final status
compute_status(record, rom, err == CHDERR_NONE);
return &record;
}
static int
hw_disk_ioctl(device *me,
cpu *processor,
unsigned_word cia,
device_ioctl_request request,
va_list ap)
{
switch (request) {
case device_ioctl_change_media:
{
hw_disk_device *disk = device_data(me);
const char *name = va_arg(ap, const char *);
if (name != NULL) {
disk->name_index = -1;
}
else {
disk->name_index = (disk->name_index + 1) % disk->nr_names;
if (!device_find_string_array_property(me, "file",
disk->name_index, &name))
device_error(me, "invalid file property");
}
open_disk_image(me, disk, name);
}
break;
default:
device_error(me, "insupported ioctl request");
break;
}
return 0;
}
static void
hw_disk_init_address(device *me)
{
hw_disk_device *disk = device_data(me);
unsigned_word address;
int space;
const char *name;
/* attach to the parent. Since the bus is logical, attach using just
the unit-address (size must be zero) */
device_address_to_attach_address(device_parent(me), device_unit_address(me),
&space, &address, me);
device_attach_address(device_parent(me), attach_callback,
space, address, 0/*size*/, access_read_write_exec,
me);
/* Tell the world we are a disk. */
device_add_string_property(me, "device_type", "block");
/* get the name of the file specifying the disk image */
disk->name_index = 0;
disk->nr_names = device_find_string_array_property(me, "file",
disk->name_index, &name);
if (!disk->nr_names)
device_error(me, "invalid file property");
/* is it a RO device? */
disk->read_only =
(strcmp(device_name(me), "disk") != 0
&& strcmp(device_name(me), "floppy") != 0
&& device_find_property(me, "read-only") == NULL);
/* now open it */
open_disk_image(me, disk, name);
}
static void process_disk_entries(romload_private *romdata, const char *regiontag, const rom_entry *parent_region, const rom_entry *romp, const char *locationtag)
{
/* loop until we hit the end of this region */
for ( ; !ROMENTRY_ISREGIONEND(romp); romp++)
{
/* handle files */
if (ROMENTRY_ISFILE(romp))
{
open_chd *chd = global_alloc(open_chd(regiontag));
hash_collection hashes(ROM_GETHASHDATA(romp));
chd_error err;
/* make the filename of the source */
astring filename(ROM_GETNAME(romp), ".chd");
/* first open the source drive */
LOG(("Opening disk image: %s\n", filename.cstr()));
err = chd_error(open_disk_image(romdata->machine().options(), &romdata->machine().system(), romp, chd->orig_chd(), locationtag));
if (err != CHDERR_NONE)
{
handle_missing_file(romdata, romp, astring(), err);
global_free(chd);
continue;
}
/* get the header and extract the SHA1 */
hash_collection acthashes;
acthashes.add_sha1(chd->orig_chd().sha1());
/* verify the hash */
if (hashes != acthashes)
{
romdata->errorstring.catprintf("%s WRONG CHECKSUMS:\n", filename.cstr());
dump_wrong_and_correct_checksums(romdata, hashes, acthashes);
romdata->warnings++;
}
else if (hashes.flag(hash_collection::FLAG_BAD_DUMP))
{
romdata->errorstring.catprintf("%s CHD NEEDS REDUMP\n", filename.cstr());
romdata->knownbad++;
}
/* if not read-only, make the diff file */
if (!DISK_ISREADONLY(romp))
{
/* try to open or create the diff */
err = open_disk_diff(romdata->machine().options(), romp, chd->orig_chd(), chd->diff_chd());
if (err != CHDERR_NONE)
{
romdata->errorstring.catprintf("%s DIFF CHD ERROR: %s\n", filename.cstr(), chd_file::error_string(err));
romdata->errors++;
global_free(chd);
continue;
}
}
/* we're okay, add to the list of disks */
LOG(("Assigning to handle %d\n", DISK_GETINDEX(romp)));
romdata->machine().romload_data->chd_list.append(*chd);
}
}
}
void rom_load_manager::process_disk_entries(const char *regiontag, const rom_entry *parent_region, const rom_entry *romp, const char *locationtag)
{
/* loop until we hit the end of this region */
for ( ; !ROMENTRY_ISREGIONEND(romp); romp++)
{
/* handle files */
if (ROMENTRY_ISFILE(romp))
{
auto chd = std::make_unique<open_chd>(regiontag);
hash_collection hashes(ROM_GETHASHDATA(romp));
chd_error err;
/* make the filename of the source */
std::string filename = std::string(ROM_GETNAME(romp)).append(".chd");
/* first open the source drive */
LOG(("Opening disk image: %s\n", filename.c_str()));
err = chd_error(open_disk_image(machine().options(), &machine().system(), romp, chd->orig_chd(), locationtag));
if (err != CHDERR_NONE)
{
handle_missing_file(romp, std::string(), err);
chd = nullptr;
continue;
}
/* get the header and extract the SHA1 */
hash_collection acthashes;
acthashes.add_sha1(chd->orig_chd().sha1());
/* verify the hash */
if (hashes != acthashes)
{
strcatprintf(m_errorstring, "%s WRONG CHECKSUMS:\n", filename.c_str());
dump_wrong_and_correct_checksums(hashes, acthashes);
m_warnings++;
}
else if (hashes.flag(hash_collection::FLAG_BAD_DUMP))
{
strcatprintf(m_errorstring, "%s CHD NEEDS REDUMP\n", filename.c_str());
m_knownbad++;
}
/* if not read-only, make the diff file */
if (!DISK_ISREADONLY(romp))
{
/* try to open or create the diff */
err = open_disk_diff(machine().options(), romp, chd->orig_chd(), chd->diff_chd());
if (err != CHDERR_NONE)
{
strcatprintf(m_errorstring, "%s DIFF CHD ERROR: %s\n", filename.c_str(), chd_file::error_string(err));
m_errors++;
chd = nullptr;
continue;
}
}
/* we're okay, add to the list of disks */
LOG(("Assigning to handle %d\n", DISK_GETINDEX(romp)));
m_chd_list.push_back(std::move(chd));
}
}
}
static void process_disk_entries(rom_load_data *romdata, const rom_entry *romp)
{
/* loop until we hit the end of this region */
while (!ROMENTRY_ISREGIONEND(romp))
{
/* handle files */
if (ROMENTRY_ISFILE(romp))
{
chd_file *source, *diff = NULL;
chd_header header;
char filename[1024];
char acthash[HASH_BUF_SIZE];
chd_error err;
/* make the filename of the source */
sprintf(filename, "%s.chd", ROM_GETNAME(romp));
/* first open the source drive */
debugload("Opening disk image: %s\n", filename);
err = open_disk_image(Machine->gamedrv, romp, &source);
if (err != CHDERR_NONE)
{
if (err == CHDERR_UNSUPPORTED_VERSION)
sprintf(&romdata->errorbuf[strlen(romdata->errorbuf)], "%s UNSUPPORTED CHD VERSION\n", filename);
else
sprintf(&romdata->errorbuf[strlen(romdata->errorbuf)], "%s NOT FOUND\n", filename);
/* if this is NO_DUMP, keep going, though the system may not be able to handle it */
if (hash_data_has_info(ROM_GETHASHDATA(romp), HASH_INFO_NO_DUMP))
romdata->warnings++;
else
romdata->errors++;
romp++;
continue;
}
/* get the header and extract the MD5/SHA1 */
header = *chd_get_header(source);
hash_data_clear(acthash);
hash_data_insert_binary_checksum(acthash, HASH_MD5, header.md5);
hash_data_insert_binary_checksum(acthash, HASH_SHA1, header.sha1);
/* verify the MD5 */
if (!hash_data_is_equal(ROM_GETHASHDATA(romp), acthash, 0))
{
sprintf(&romdata->errorbuf[strlen(romdata->errorbuf)], "%s WRONG CHECKSUMS:\n", filename);
dump_wrong_and_correct_checksums(romdata, ROM_GETHASHDATA(romp), acthash);
romdata->warnings++;
}
else if (hash_data_has_info(ROM_GETHASHDATA(romp), HASH_INFO_BAD_DUMP))
{
sprintf(&romdata->errorbuf[strlen(romdata->errorbuf)], "%s CHD NEEDS REDUMP\n", filename);
romdata->warnings++;
}
/* if not read-only, make the diff file */
if (!DISK_ISREADONLY(romp))
{
/* make the filename of the diff */
sprintf(filename, "%s.dif", ROM_GETNAME(romp));
/* try to open the diff */
debugload("Opening differencing image: %s\n", filename);
err = chd_open(filename, CHD_OPEN_READWRITE, source, &diff);
if (err != CHDERR_NONE)
{
/* didn't work; try creating it instead */
debugload("Creating differencing image: %s\n", filename);
err = chd_create(filename, 0, 0, CHDCOMPRESSION_NONE, source);
if (err != CHDERR_NONE)
{
if (err == CHDERR_UNSUPPORTED_VERSION)
sprintf(&romdata->errorbuf[strlen(romdata->errorbuf)], "%s UNSUPPORTED CHD VERSION\n", filename);
else
sprintf(&romdata->errorbuf[strlen(romdata->errorbuf)], "%s: CAN'T CREATE DIFF FILE\n", filename);
romdata->errors++;
romp++;
continue;
}
/* open the newly-created diff file */
debugload("Opening differencing image: %s\n", filename);
err = chd_open(filename, CHD_OPEN_READWRITE, source, &diff);
if (err != CHDERR_NONE)
{
if (err == CHDERR_UNSUPPORTED_VERSION)
sprintf(&romdata->errorbuf[strlen(romdata->errorbuf)], "%s UNSUPPORTED CHD VERSION\n", filename);
else
sprintf(&romdata->errorbuf[strlen(romdata->errorbuf)], "%s: CAN'T OPEN DIFF FILE\n", filename);
romdata->errors++;
romp++;
continue;
}
}
}
/* we're okay, set the handle */
debugload("Assigning to handle %d\n", DISK_GETINDEX(romp));
disk_handle[DISK_GETINDEX(romp)] = DISK_ISREADONLY(romp) ? source : diff;
romp++;
}
}
}
static int audit_one_disk(const rom_entry *rom, const game_driver *gamedrv, UINT32 validation, audit_record *record)
{
chd_file *source;
chd_error err;
/* fill in the record basics */
record->type = AUDIT_FILE_DISK;
record->name = ROM_GETNAME(rom);
record->exphash = ROM_GETHASHDATA(rom);
/* open the disk */
chd_gamedrv = gamedrv;
chd_set_interface(&audit_chd_interface);
err = open_disk_image(gamedrv, rom, &source);
/* if we failed, report the error */
if (err != CHDERR_NONE)
{
/* out of memory */
if (err == CHDERR_OUT_OF_MEMORY)
set_status(record, AUDIT_STATUS_ERROR, SUBSTATUS_ERROR);
/* not found but it's not good anyway */
else if (hash_data_has_info(record->exphash, HASH_INFO_NO_DUMP))
set_status(record, AUDIT_STATUS_NOT_FOUND, SUBSTATUS_NOT_FOUND_NODUMP);
/* not found at all */
else
set_status(record, AUDIT_STATUS_NOT_FOUND, SUBSTATUS_NOT_FOUND);
}
/* if we succeeded, validate it */
else
{
static const UINT8 nullhash[HASH_BUF_SIZE] = { 0 };
chd_header header = *chd_get_header(source);
/* if there's an MD5 or SHA1 hash, add them to the output hash */
if (memcmp(nullhash, header.md5, sizeof(header.md5)) != 0)
hash_data_insert_binary_checksum(record->hash, HASH_MD5, header.md5);
if (memcmp(nullhash, header.sha1, sizeof(header.sha1)) != 0)
hash_data_insert_binary_checksum(record->hash, HASH_SHA1, header.sha1);
/* found but needs a dump */
if (hash_data_has_info(record->exphash, HASH_INFO_NO_DUMP))
set_status(record, AUDIT_STATUS_GOOD, SUBSTATUS_GOOD_NEEDS_REDUMP);
/* incorrect hash */
else if (!hash_data_is_equal(record->exphash, record->hash, 0))
set_status(record, AUDIT_STATUS_FOUND_INVALID, SUBSTATUS_FOUND_BAD_CHECKSUM);
/* just plain good */
else
set_status(record, AUDIT_STATUS_GOOD, SUBSTATUS_GOOD);
chd_close(source);
}
/* return TRUE if we found anything at all */
return (source != NULL);
}