QTfrontend/util/platform/NSWorkspace_RBAdditions.m
author koda
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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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*/
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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