/* Build and send a packet from a command.
* The CRC and Status fields do not need to be filled */
Ret_t COMM_SendCommand(S_COMMAND* cmd)
{
if (cmd->payload > CFG_COMM_MAX_CMD_DATA)
return RET_ERROR;
_ComputeCRC(cmd, CRC_WRITE);
_SendCommand(cmd);
return RET_OK;
}
status_t
CDDBServer::Query(uint32 cddbID, const scsi_toc_toc* toc,
QueryResponseList& queryResponses)
{
if (_OpenConnection() != B_OK)
return B_ERROR;
// Convert CDDB id to hexadecimal format.
char hexCddbId[9];
sprintf(hexCddbId, "%08" B_PRIx32, cddbID);
// Assemble the Query command.
int32 numTracks = toc->last_track + 1 - toc->first_track;
BString cddbCommand("cddb query ");
cddbCommand << hexCddbId << " " << numTracks << " ";
// Add track offsets in frames.
for (int32 i = 0; i < numTracks; ++i) {
const scsi_cd_msf& start = toc->tracks[i].start.time;
uint32 startFrameOffset = start.minute * kFramesPerMinute +
start.second * kFramesPerSecond + start.frame;
cddbCommand << startFrameOffset << " ";
}
// Add total disc time in seconds. Last track is lead-out.
const scsi_cd_msf& lastTrack = toc->tracks[numTracks].start.time;
uint32 totalTimeInSeconds = lastTrack.minute * 60 + lastTrack.second;
cddbCommand << totalTimeInSeconds;
BString output;
status_t result = _SendCommand(cddbCommand, output);
if (result == B_OK) {
// Remove the header from the reply.
output.Remove(0, output.FindFirst("\r\n\r\n") + 4);
// Check status code.
BString statusCode;
output.MoveInto(statusCode, 0, 3);
if (statusCode == "210" || statusCode == "211") {
// TODO(bga): We can get around with returning the first result
// in case of multiple matches, but we most definitely need a
// better handling of inexact matches.
if (statusCode == "211")
printf("Warning : Inexact match found.\n");
// Multiple results, remove the first line and parse the others.
output.Remove(0, output.FindFirst("\r\n") + 2);
} else if (statusCode == "200") {
// Remove the first char which is a left over space.
output.Remove(0, 1);
} else if (statusCode == "202") {
// No match found.
printf("Error : CDDB entry for id %s not found.\n", hexCddbId);
return B_ENTRY_NOT_FOUND;
} else {
// Something bad happened.
if (statusCode.Trim() != "") {
printf("Error : CDDB server status code is %s.\n",
statusCode.String());
} else {
printf("Error : Could not find any status code.\n");
}
return B_ERROR;
}
// Process all entries.
bool done = false;
while (!done) {
QueryResponseData* responseData = new QueryResponseData;
output.MoveInto(responseData->category, 0, output.FindFirst(" "));
output.Remove(0, 1);
output.MoveInto(responseData->cddbID, 0, output.FindFirst(" "));
output.Remove(0, 1);
output.MoveInto(responseData->artist, 0, output.FindFirst(" / "));
output.Remove(0, 3);
output.MoveInto(responseData->title, 0, output.FindFirst("\r\n"));
output.Remove(0, 2);
queryResponses.AddItem(responseData);
if (output == "" || output == ".\r\n") {
// All returned data was processed exit the loop.
done = true;
}
}
} else {
printf("Error sending CDDB command : \"%s\".\n", cddbCommand.String());
}
_CloseConnection();
return result;
}
status_t
CDDBServer::Read(const BString& category, const BString& cddbID,
const BString& artist, ReadResponseData& readResponse, bool verbose)
{
if (_OpenConnection() != B_OK)
return B_ERROR;
// Assemble the Read command.
BString cddbCommand("cddb read ");
cddbCommand << category << " " << cddbID;
BString output;
status_t result = _SendCommand(cddbCommand, output);
if (result == B_OK) {
if (verbose)
puts(output);
// Remove the header from the reply.
output.Remove(0, output.FindFirst("\r\n\r\n") + 4);
// Check status code.
BString statusCode;
output.MoveInto(statusCode, 0, 3);
if (statusCode == "210") {
// Remove first line and parse the others.
output.Remove(0, output.FindFirst("\r\n") + 2);
} else {
// Something bad happened.
return B_ERROR;
}
// Process all entries.
bool done = false;
while (!done) {
if (output[0] == '#') {
// Comment. Remove it.
output.Remove(0, output.FindFirst("\r\n") + 2);
continue;
}
// Extract one line to reduce the scope of processing to it.
BString line;
output.MoveInto(line, 0, output.FindFirst("\r\n"));
output.Remove(0, 2);
// Obtain prefix.
BString prefix;
line.MoveInto(prefix, 0, line.FindFirst("="));
line.Remove(0, 1);
if (prefix == "DTITLE") {
// Disk title.
BString artist;
line.MoveInto(artist, 0, line.FindFirst(" / "));
line.Remove(0, 3);
readResponse.title = line;
readResponse.artist = artist;
} else if (prefix == "DYEAR") {
// Disk year.
char* firstInvalid;
errno = 0;
uint32 year = strtoul(line.String(), &firstInvalid, 10);
if ((errno == ERANGE &&
(year == (uint32)LONG_MAX || year == (uint32)LONG_MIN))
|| (errno != 0 && year == 0)) {
// Year out of range.
printf("Year out of range: %s\n", line.String());
year = 0;
}
if (firstInvalid == line.String()) {
printf("Invalid year: %s\n", line.String());
year = 0;
}
readResponse.year = year;
} else if (prefix == "DGENRE") {
// Disk genre.
readResponse.genre = line;
} else if (prefix.FindFirst("TTITLE") == 0) {
// Track title.
BString index;
prefix.MoveInto(index, 6, prefix.Length() - 6);
char* firstInvalid;
errno = 0;
uint32 track = strtoul(index.String(), &firstInvalid, 10);
if (errno != 0 || track > 99) {
// Track out of range.
printf("Track out of range: %s\n", index.String());
return B_ERROR;
}
if (firstInvalid == index.String()) {
printf("Invalid track: %s\n", index.String());
return B_ERROR;
}
BString trackArtist;
int32 pos = line.FindFirst(" / ");
if (pos >= 0 && artist.ICompare("Various") == 0) {
// Disk is set to have a compilation artist and
// we have track specific artist information.
line.MoveInto(trackArtist, 0, pos);
// Move artist information from line to artist.
line.Remove(0, 3);
// Remove " / " from line.
} else {
trackArtist = artist;
}
TrackData* trackData = _Track(readResponse, track);
trackData->artist += trackArtist;
trackData->title += line;
}
if (output == "" || output == ".\r\n") {
// All returned data was processed exit the loop.
done = true;
}
}
} else {
printf("Error sending CDDB command : \"%s\".\n", cddbCommand.String());
}
_CloseConnection();
return B_OK;
}