Merge branch 'master' into stable

1 files changed, 228 insertions, 0 deletions

diff --git a/Source/Core/Common/CDUtils.cpp b/Source/Core/Common/CDUtils.cpp
new file mode 100644
index 0000000000..bb71c435b0
--- /dev/null
+++ b/Source/Core/Common/CDUtils.cpp
@@ -0,0 +1,228 @@
+// Copyright 2009 Dolphin Emulator Project
+// Licensed under GPLv2+
+// Refer to the license.txt file included.
+
+// Most of the code in this file was shamelessly ripped from libcdio With minor adjustments
+
+#include <algorithm>
+#include <cstdlib>
+#include <string>
+#include <vector>
+
+#include "Common/CDUtils.h"
+#include "Common/CommonTypes.h"
+#include "Common/StringUtil.h"
+
+#ifdef _WIN32
+#include <windows.h>
+#elif __APPLE__
+#include <CoreFoundation/CoreFoundation.h>
+#include <IOKit/IOBSD.h>
+#include <IOKit/IOKitLib.h>
+#include <IOKit/storage/IOCDMedia.h>
+#include <IOKit/storage/IOMedia.h>
+#include <paths.h>
+#else
+#include <fcntl.h>
+#include <sys/stat.h>
+#include <sys/ioctl.h>
+#include <unistd.h>
+#endif // WIN32
+
+#ifdef __linux__
+#include <linux/cdrom.h>
+#endif
+
+#ifdef _WIN32
+// takes a root drive path, returns true if it is a cdrom drive
+bool is_cdrom(const TCHAR* drive)
+{
+	return (DRIVE_CDROM == GetDriveType(drive));
+}
+
+// Returns a vector with the device names
+std::vector<std::string> cdio_get_devices()
+{
+	std::vector<std::string> drives;
+
+	const DWORD buffsize = GetLogicalDriveStrings(0, nullptr);
+	std::vector<TCHAR> buff(buffsize);
+	if (GetLogicalDriveStrings(buffsize, buff.data()) == buffsize - 1)
+	{
+		auto drive = buff.data();
+		while (*drive)
+		{
+			if (is_cdrom(drive))
+			{
+				std::string str(TStrToUTF8(drive));
+				str.pop_back(); // we don't want the final backslash
+				drives.push_back(std::move(str));
+			}
+
+			// advance to next drive
+			while (*drive++) {}
+		}
+	}
+	return drives;
+}
+#elif defined __APPLE__
+// Returns a pointer to an array of strings with the device names
+std::vector<std::string> cdio_get_devices()
+{
+	io_object_t   next_media;
+	mach_port_t   master_port;
+	kern_return_t kern_result;
+	io_iterator_t media_iterator;
+	CFMutableDictionaryRef classes_to_match;
+	std::vector<std::string> drives;
+
+	kern_result = IOMasterPort(MACH_PORT_NULL, &master_port);
+	if (kern_result != KERN_SUCCESS)
+		return drives;
+
+	classes_to_match = IOServiceMatching(kIOCDMediaClass);
+	if (classes_to_match == nullptr)
+		return drives;
+
+	CFDictionarySetValue(classes_to_match,
+		CFSTR(kIOMediaEjectableKey), kCFBooleanTrue);
+
+	kern_result = IOServiceGetMatchingServices(master_port,
+		classes_to_match, &media_iterator);
+	if (kern_result != KERN_SUCCESS)
+		return drives;
+
+	next_media = IOIteratorNext(media_iterator);
+	if (next_media != 0)
+	{
+		CFTypeRef str_bsd_path;
+
+		do
+		{
+			str_bsd_path =
+				IORegistryEntryCreateCFProperty(next_media,
+					CFSTR(kIOBSDNameKey), kCFAllocatorDefault,
+					0);
+			if (str_bsd_path == nullptr)
+			{
+				IOObjectRelease(next_media);
+				continue;
+			}
+
+			if (CFGetTypeID(str_bsd_path) == CFStringGetTypeID())
+			{
+				size_t buf_size = CFStringGetLength((CFStringRef)str_bsd_path) * 4 + 1;
+				char* buf = new char[buf_size];
+
+				if (CFStringGetCString((CFStringRef)str_bsd_path, buf, buf_size, kCFStringEncodingUTF8))
+				{
+					// Below, by appending 'r' to the BSD node name, we indicate
+					// a raw disk. Raw disks receive I/O requests directly and
+					// don't go through a buffer cache.
+					drives.push_back(std::string(_PATH_DEV "r") + buf);
+				}
+
+				delete[] buf;
+			}
+			CFRelease(str_bsd_path);
+			IOObjectRelease(next_media);
+		} while ((next_media = IOIteratorNext(media_iterator)) != 0);
+	}
+	IOObjectRelease(media_iterator);
+	return drives;
+}
+#else
+// checklist: /dev/cdrom, /dev/dvd /dev/hd?, /dev/scd? /dev/sr?
+static struct
+{
+	const char * format;
+	unsigned int num_min;
+	unsigned int num_max;
+} checklist[] =
+	{
+#ifdef __linux__
+		{ "/dev/cdrom", 0, 0 },
+		{ "/dev/dvd", 0, 0 },
+		{ "/dev/hd%c", 'a', 'z' },
+		{ "/dev/scd%d", 0, 27 },
+		{ "/dev/sr%d", 0, 27 },
+#else
+		{ "/dev/acd%d", 0, 27 },
+		{ "/dev/cd%d", 0, 27 },
+#endif
+		{ nullptr, 0, 0 }
+	};
+
+// Returns true if a device is a block or char device and not a symbolic link
+static bool is_device(const std::string& source_name)
+{
+	struct stat buf;
+	if (0 != lstat(source_name.c_str(), &buf))
+		return false;
+
+	return ((S_ISBLK(buf.st_mode) || S_ISCHR(buf.st_mode)) &&
+		!S_ISLNK(buf.st_mode));
+}
+
+// Check a device to see if it is a DVD/CD-ROM drive
+static bool is_cdrom(const std::string& drive, char *mnttype)
+{
+	// Check if the device exists
+	if (!is_device(drive))
+		return false;
+
+	bool is_cd = false;
+	// If it does exist, verify that it is a cdrom/dvd drive
+	int cdfd = open(drive.c_str(), (O_RDONLY | O_NONBLOCK), 0);
+	if (cdfd >= 0)
+	{
+#ifdef __linux__
+		if (ioctl(cdfd, CDROM_GET_CAPABILITY, 0) != -1)
+#endif
+			is_cd = true;
+		close(cdfd);
+	}
+	return is_cd;
+}
+
+// Returns a pointer to an array of strings with the device names
+std::vector<std::string> cdio_get_devices()
+{
+	std::vector<std::string> drives;
+	// Scan the system for DVD/CD-ROM drives.
+	for (unsigned int i = 0; checklist[i].format; ++i)
+	{
+		for (unsigned int j = checklist[i].num_min; j <= checklist[i].num_max; ++j)
+		{
+			std::string drive = StringFromFormat(checklist[i].format, j);
+			if (is_cdrom(drive, nullptr))
+			{
+				drives.push_back(std::move(drive));
+			}
+		}
+	}
+	return drives;
+}
+#endif
+
+// Returns true if device is a cdrom/dvd drive
+bool cdio_is_cdrom(std::string device)
+{
+#ifndef _WIN32
+	// Resolve symbolic links. This allows symbolic links to valid
+	// drives to be passed from the command line with the -e flag.
+	char resolved_path[MAX_PATH];
+	char *devname = realpath(device.c_str(), resolved_path);
+	if (!devname)
+		return false;
+	device = devname;
+#endif
+
+	std::vector<std::string> devices = cdio_get_devices();
+	for (const std::string& d : devices)
+	{
+		if (d == device)
+			return true;
+	}
+	return false;
+}