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#include "cdabstract.h"
#include "Input.h"
#include "cdreader.h"
#ifdef __linux__
#include <unistd.h>
#include <sys/ioctl.h>
#include <fcntl.h>
#include <linux/cdrom.h>
#endif
#if defined (_MSC_VER) || defined (__MINGW32__)
#include <windowsx.h>
#endif
Handle * cdabstract::open_cd(const String & nom) {
if (nom.extract(0, 2).toupper() == "CD:") {
return new cdreader(nom.extract(3));
} else {
return new Input(nom);
}
}
bool cdabstract::canprobe() {
#ifdef __linux__
return true;
#endif
#ifdef _WIN32
OSVERSIONINFO ov;
memset(&ov, 0, sizeof(OSVERSIONINFO));
ov.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
GetVersionEx(&ov);
return ((ov.dwPlatformId == VER_PLATFORM_WIN32_NT) && (ov.dwMajorVersion > 4));
#endif
return false;
}
std::vector<String> cdabstract::probe() throw (GeneralException) {
int i;
std::vector<String> r;
String probed;
if (!canprobe())
throw GeneralException("Can't probe CD devices on this platform.");
#ifdef __linux__
if (subprobe(probed = "/dev/cdrom"))
r.push_back(probed);
for (i = 0; i < 63; i++) {
probed.set("/dev/cdroms/cdrom%i", i);
if (subprobe(probed))
r.push_back(probed);
}
for (i = 'a'; i <= 'z'; i++) {
probed.set("/dev/hd%c", i);
if (subprobe(probed))
r.push_back(probed);
}
#endif
#ifdef _WIN32
for (i = 'A'; i <= 'Z'; i++) {
probed.set("%c:\\", i);
if (subprobe(probed))
r.push_back(probed);
}
#endif
return r;
}
#ifdef _WIN32
HANDLE cdabstract::OpenIOCTLFile(char cLetter) {
HANDLE hF;
char szFName[16];
OSVERSIONINFO ov;
DWORD dwFlags;
DWORD dwIOCTLAttr = 0;
memset(&ov, 0, sizeof(OSVERSIONINFO));
ov.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
GetVersionEx(&ov);
if((ov.dwPlatformId == VER_PLATFORM_WIN32_NT) && (ov.dwMajorVersion > 4))
dwFlags = GENERIC_READ | GENERIC_WRITE; // add gen write on W2k/XP
else dwFlags = GENERIC_READ;
sprintf(szFName, "\\\\.\\%c:", cLetter);
hF = CreateFile(szFName, dwFlags, FILE_SHARE_READ, // open drive
NULL, OPEN_EXISTING, dwIOCTLAttr, NULL);
if (hF == INVALID_HANDLE_VALUE) { // mmm... no success?
dwFlags ^= GENERIC_WRITE; // -> try write toggle
hF = CreateFile(szFName, dwFlags, FILE_SHARE_READ, // -> open drive again
NULL, OPEN_EXISTING, dwIOCTLAttr, NULL);
if (hF == INVALID_HANDLE_VALUE)
return NULL;
}
return hF;
}
typedef struct {
ULONG Length;
UCHAR PortNumber;
UCHAR PathId;
UCHAR TargetId;
UCHAR Lun;
} SCSI_ADDRESS, *PSCSI_ADDRESS;
void cdabstract::GetIOCTLAdapter(HANDLE hF, int * iDA, int * iDT, int * iDL) {
char szBuf[1024];
PSCSI_ADDRESS pSA;
DWORD dwRet;
*iDA = *iDT = *iDL = -1;
if (hF == NULL)
return;
memset(szBuf,0,1024);
pSA = (PSCSI_ADDRESS)szBuf;
pSA->Length = sizeof(SCSI_ADDRESS);
if (!DeviceIoControl(hF, IOCTL_SCSI_GET_ADDRESS, NULL, 0, pSA,
sizeof(SCSI_ADDRESS), &dwRet, NULL))
return;
*iDA = pSA->PortNumber;
*iDT = pSA->TargetId;
*iDL = pSA->Lun;
}
#endif
bool cdabstract::subprobe(String & probed) {
#ifdef __linux__
int h, caps;
h = open(probed.to_charp(), O_RDONLY | O_NONBLOCK);
if (ioctl(h, CDROM_GET_CAPABILITY, &caps) < 0) {
close(h);
return false;
} else {
close(h);
return true;
}
#endif
#ifdef _WIN32
int iDA, iDT, iDL;
char letter[4];
HANDLE h;
if (GetDriveType(probed.to_charp()) == DRIVE_CDROM) {
h = OpenIOCTLFile(probed[0]);
GetIOCTLAdapter(h, &iDA, &iDT, &iDL);
CloseHandle(h);
if ((iDA != -1) && (iDT != -1) && (iDL != -1)) {
probed += String().set(" [%i:%i:%i]", iDA, iDT, iDL);
return true;
}
}
#endif
return false;
}
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