QTfrontend/NSWorkspace_RBAdditions.m
author koda
Sat, 03 Dec 2011 15:01:57 +0100
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//
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//  NSWorkspace_RBAdditions.m
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//  PathProps
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//
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//  Created by Rainer Brockerhoff on 10/04/2007.
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//  Copyright 2007 Rainer Brockerhoff. All rights reserved.
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//
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#import "NSWorkspace_RBAdditions.h"
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#include <IOKit/IOKitLib.h>
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#include <sys/mount.h>
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#include <mach/mach.h>
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NSString* NSWorkspace_RBfstypename = @"NSWorkspace_RBfstypename";
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NSString* NSWorkspace_RBmntonname = @"NSWorkspace_RBmntonname";
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NSString* NSWorkspace_RBmntfromname = @"NSWorkspace_RBmntfromname";
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NSString* NSWorkspace_RBdeviceinfo = @"NSWorkspace_RBdeviceinfo";
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NSString* NSWorkspace_RBimagefilepath = @"NSWorkspace_RBimagefilepath";
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NSString* NSWorkspace_RBconnectiontype = @"NSWorkspace_RBconnectiontype";
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NSString* NSWorkspace_RBpartitionscheme = @"NSWorkspace_RBpartitionscheme";
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NSString* NSWorkspace_RBserverURL = @"NSWorkspace_RBserverURL";
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// This static funtion concatenates two strings, but first checks several possibilities...
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// like one or the other nil, or one containing the other already.
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static NSString* AddPart(NSString* first,NSString* second) {
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	if (!second) {
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		return first;
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	}
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	second = [second stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];
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	if (first) {
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		if ([first rangeOfString:second options:NSCaseInsensitiveSearch].location==NSNotFound) {
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			if ([second rangeOfString:first options:NSCaseInsensitiveSearch].location==NSNotFound) {
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				return [NSString stringWithFormat:@"%@; %@",first,second];
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			}
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			return second;
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		}
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		return first;
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	}
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	return second;
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}
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// This static functions recurses "upwards" over the IO registry. Returns strings that are concatenated
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// and ultimately end up under the NSWorkspace_RBdeviceinfo key.
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// This isn't too robust in that it assumes that objects returned by the objectForKey methods are
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// either strings or dictionaries. A "standard" implementations would use either only CoreFoundation and
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// IOKit calls for this, or do more robust type checking on the returned objects.
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//
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// Also notice that this works as determined experimentally in 10.4.9, there's no official docs I could find.
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// YMMV, and it may stop working in any new version of Mac OS X.
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static NSString* CheckParents(io_object_t thing,NSString* part,NSMutableDictionary* dict) {
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	NSString* result = part;
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    io_iterator_t parentsIterator = 0;
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    kern_return_t kernResult = IORegistryEntryGetParentIterator(thing,kIOServicePlane,&parentsIterator);
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    if ((kernResult==KERN_SUCCESS)&&parentsIterator) {
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		io_object_t nextParent = 0;
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		while ((nextParent = IOIteratorNext(parentsIterator))) {
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			NSDictionary* props = nil;
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			NSString* image = nil;
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			NSString* partition = nil;
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			NSString* connection = nil;
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			kernResult = IORegistryEntryCreateCFProperties(nextParent,(CFMutableDictionaryRef*)&props,kCFAllocatorDefault,0);
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			if (IOObjectConformsTo(nextParent,"IOApplePartitionScheme")) {
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				partition = [props objectForKey:@"Content Mask"];
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			} else if (IOObjectConformsTo(nextParent,"IOMedia")) {
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				partition = [props objectForKey:@"Content"];
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			} else if (IOObjectConformsTo(nextParent,"IODiskImageBlockStorageDeviceOutKernel")) {
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				NSData* data = nil;
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                                if ((data = [[props objectForKey:@"Protocol Characteristics"] objectForKey:@"Virtual Interface Location Path"])) {
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					image = [[[NSString alloc] initWithBytes:[data bytes] length:[data length] encoding:NSUTF8StringEncoding] autorelease];
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				}
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			} else if (IOObjectConformsTo(nextParent,"IOHDIXHDDriveInKernel")) {
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				image = [props objectForKey:@"KDIURLPath"];
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			}
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			NSDictionary* subdict;
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                        if ((subdict = [props objectForKey:@"Protocol Characteristics"])) {
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				connection = [subdict objectForKey:@"Physical Interconnect"];
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			} else {
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				connection = [props objectForKey:@"Physical Interconnect"];
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			}
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			if (connection) {
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				[dict setObject:AddPart([dict objectForKey:NSWorkspace_RBconnectiontype],connection) forKey:NSWorkspace_RBconnectiontype];
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			}
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			if (partition) {
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				[dict setObject:partition forKey:NSWorkspace_RBpartitionscheme];
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			}
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			if (image) {
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				[dict setObject:image forKey:NSWorkspace_RBimagefilepath];
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			}
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			NSString* value;
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                        if ((subdict = [props objectForKey:@"Device Characteristics"])) {
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                                if ((value = [subdict objectForKey:@"Product Name"])) {
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					result = AddPart(result,value);
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				}
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                                if ((value = [subdict objectForKey:@"Product Revision Level"])) {
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					result = AddPart(result,value);
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				}
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                                if ((value = [subdict objectForKey:@"Vendor Name"])) {
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					result = AddPart(result,value);
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				}
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			}
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                        if ((value = [props objectForKey:@"USB Serial Number"])) {
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				result = AddPart(result,value);
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			}
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                        if ((value = [props objectForKey:@"USB Vendor Name"])) {
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				result = AddPart(result,value);
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			}
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			NSString* cls = [(NSString*)IOObjectCopyClass(nextParent) autorelease];
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			if (![cls isEqualToString:@"IOPCIDevice"]) {
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// Uncomment the following line to have the device tree dumped to the console.
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//				NSLog(@"=================================> %@:%@\n",cls,props);
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				result = CheckParents(nextParent,result,dict);
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			}
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			IOObjectRelease(nextParent);
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		}
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    }
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    if (parentsIterator) {
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		IOObjectRelease(parentsIterator);
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    }
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	return result;
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}
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// This formats the (partially undocumented) AFPXMountInfo info into a string.
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/*
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static NSString* FormatAFPURL(AFPXVolMountInfoPtr mountInfo,NSString** devdesc) {
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	UInt8* work = ((UInt8*)mountInfo)+mountInfo->serverNameOffset;
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	if (devdesc) {
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		*devdesc = [[[NSString alloc] initWithBytes:&work[1] length:work[0] encoding:NSUTF8StringEncoding] autorelease];
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	}
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	work = ((UInt8*)mountInfo)+mountInfo->volNameOffset;
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	NSString* volname = [[[NSString alloc] initWithBytes:&work[1] length:work[0] encoding:NSUTF8StringEncoding] autorelease];
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	work = ((UInt8*)mountInfo)+mountInfo->alternateAddressOffset;
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	AFPAlternateAddress* afpa = (AFPAlternateAddress*)work;
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	AFPTagData* afpta = (AFPTagData*)(&afpa->fAddressList);
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	NSString* ip = nil;
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	NSString* dns = nil;
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	int i = afpa->fAddressCount;
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	while ((i-->0)) {
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		switch (afpta->fType) {
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			case kAFPTagTypeIP:
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				if (!ip) {
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					ip = [[[NSString alloc] initWithBytes:&afpta->fData[0] length:afpta->fLength-2 encoding:NSUTF8StringEncoding] autorelease];
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				}
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				break;
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			case kAFPTagTypeIPPort:
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				ip = [NSString stringWithFormat:@"%u.%u.%u.%u:%u",afpta->fData[0],afpta->fData[1],afpta->fData[2],afpta->fData[3],OSSwapBigToHostInt16(*(UInt16*)&afpta->fData[4])];
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				break;
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			case kAFPTagTypeDNS:
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				dns = [[[NSString alloc] initWithBytes:&afpta->fData[0] length:afpta->fLength-2 encoding:NSUTF8StringEncoding] autorelease];
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				break;
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			case 0x07:
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				ip = [NSString stringWithFormat:@"[%x:%x:%x:%x:%x:%x:%x:%x]",OSSwapBigToHostInt16(*(UInt16*)&afpta->fData[0]),
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					OSSwapBigToHostInt16(*(UInt16*)&afpta->fData[2]),OSSwapBigToHostInt16(*(UInt16*)&afpta->fData[4]),
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					OSSwapBigToHostInt16(*(UInt16*)&afpta->fData[6]),OSSwapBigToHostInt16(*(UInt16*)&afpta->fData[8]),
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					OSSwapBigToHostInt16(*(UInt16*)&afpta->fData[10]),OSSwapBigToHostInt16(*(UInt16*)&afpta->fData[12]),
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					OSSwapBigToHostInt16(*(UInt16*)&afpta->fData[14])];
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				break;
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		}
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		afpta = (AFPTagData*)((char*)afpta+afpta->fLength);
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	}
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	return [NSString stringWithFormat:@"afp://%@/%@",dns?:(ip?:@""),volname];
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}
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*/
2400
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@implementation NSWorkspace (NSWorkspace_RBAdditions)
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// Returns a NSDictionary with properties for the path. See details in the .h file.
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// This assumes that the length of path is less than PATH_MAX (currently 1024 characters).
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- (NSDictionary*)propertiesForPath:(NSString*)path {
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	const char* ccpath = (const char*)[path fileSystemRepresentation];
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	NSMutableDictionary* result = nil;
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	struct statfs fs;
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	if (!statfs(ccpath,&fs)) {
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		NSString* from = [NSString stringWithUTF8String:fs.f_mntfromname];
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		result = [NSMutableDictionary dictionaryWithObjectsAndKeys:
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			[NSString stringWithUTF8String:fs.f_fstypename],NSWorkspace_RBfstypename,
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			[NSString stringWithUTF8String:fs.f_mntonname],NSWorkspace_RBmntonname,
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			nil];
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		if (strncmp(fs.f_mntfromname,"/dev/",5)==0) {
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// For a local volume,get the IO registry tree and search it for further info.
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			mach_port_t masterPort = 0;
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			io_iterator_t mediaIterator = 0;
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			kern_return_t kernResult = IOMasterPort(bootstrap_port,&masterPort);
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			if (kernResult==KERN_SUCCESS) {
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				CFMutableDictionaryRef classesToMatch = IOBSDNameMatching(masterPort,0,&fs.f_mntfromname[5]);
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				if (classesToMatch) {
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					kernResult = IOServiceGetMatchingServices(masterPort,classesToMatch,&mediaIterator);
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					if ((kernResult==KERN_SUCCESS)&&mediaIterator) {
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						io_object_t firstMedia = 0;
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						while ((firstMedia = IOIteratorNext(mediaIterator))) {
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							NSString* stuff = CheckParents(firstMedia,nil,result);
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							if (stuff) {
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								[result setObject:stuff forKey:NSWorkspace_RBdeviceinfo];
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							}
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							IOObjectRelease(firstMedia);
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						}
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					}
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				}
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			}
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			if (mediaIterator) {
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				IOObjectRelease(mediaIterator);
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			}
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			if (masterPort) {
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				mach_port_deallocate(mach_task_self(),masterPort);
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			}
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		}
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		//Don't need this for disk images, gets around warnings for some deprecated functions
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		/* else {
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// For a network volume, get the volume reference number and use to get the server URL.
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			FSRef ref;
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			if (FSPathMakeRef((const UInt8*)ccpath,&ref,NULL)==noErr) {
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				FSCatalogInfo info;
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				if (FSGetCatalogInfo(&ref,kFSCatInfoVolume,&info,NULL,NULL,NULL)==noErr) {
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					ParamBlockRec pb;
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					UInt16 vmisize = 0;
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					VolumeMountInfoHeaderPtr mountInfo = NULL;
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					pb.ioParam.ioCompletion = NULL;
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					pb.ioParam.ioNamePtr = NULL;
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					pb.ioParam.ioVRefNum = info.volume;
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					pb.ioParam.ioBuffer = (Ptr)&vmisize;
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					pb.ioParam.ioReqCount = sizeof(vmisize);
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					if ((PBGetVolMountInfoSize(&pb)==noErr)&&vmisize) {
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						mountInfo = (VolumeMountInfoHeaderPtr)malloc(vmisize);
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						if (mountInfo) {
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							pb.ioParam.ioBuffer = (Ptr)mountInfo;
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							pb.ioParam.ioReqCount = vmisize;
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							if (PBGetVolMountInfo(&pb)==noErr) {
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								NSString* url = nil;
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								switch (mountInfo->media) {
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								case AppleShareMediaType:
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									url = FormatAFPURL((AFPXVolMountInfoPtr)mountInfo,&from);
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									break;
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								case 'http':
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									url = from;
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									break;
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								case 'crbm':
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								case 'nfs_':
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								case 'cifs':
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									url = [NSString stringWithUTF8String:(char*)mountInfo+sizeof(VolumeMountInfoHeader)+sizeof(OSType)];
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									break;
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								}
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								if (url) {
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									[result setObject:url forKey:NSWorkspace_RBserverURL];
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								}
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							}
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						}
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						free(mountInfo);
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					}
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				}
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			}
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		}*/
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		[result setObject:from forKey:NSWorkspace_RBmntfromname];
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	}
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	return result;
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}
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@end