If you'll excuse some Cocoa, here is the code we use for detecting the
version number of our driver. It works fine on both PPC and intel
-(NSString*) getKEXTVersionStringFromIdentifier:(NSString*)pBundleIdentifier
{
NSString* pStr = @"vx.xx";
CFBundleRef MyBundle = NULL;
// Make a CFURLRef from the CFString representation of the
// bundles path.
CFURLRef BundleURL =
KextManagerCreateURLForBundleIdentifier(kCFAllocatorDefault,
(CFStringRef)pBundleIdentifier);
// Make a bundle instance using the URLRef.
if ( BundleURL )
{
MyBundle = CFBundleCreate( kCFAllocatorDefault, BundleURL );
if ( MyBundle )
{
pStr = (NSString*) CFBundleGetValueForInfoDictionaryKey(MyBundle,
kCFBundleVersionKey);
pStr = [NSString stringWithFormat:@"v%@", pStr];
}
}
// Any CF objects returned from functions with "create" or
// "copy" in their names must be released by us!
if ( BundleURL )
CFRelease( BundleURL );
if ( MyBundle )
CFRelease( MyBundle );
return pStr;
}
Hope that helps,
Brett
Peter Young wrote:
> Hi,
>
>
>
> I am in the process of porting our OS X driver and support code to Mac
> OS X Intel.
>
> I have hit a minor snag in that the code I used for the retrieving the
> driver version for the PPC version no longer works on the Intel version.
>
> This is the code fragment I used for the PPC version:
>
>
>
> #define kHWPlotLocation "/System/Library/Extensions/HWPlot.kext"
>
>
>
> void GetDriverVersion ( char *RefNum, char *VersionString )
>
> {
>
> CFURLRef bundleURL = NULL;
>
> CFBundleRef myBundle = NULL;
>
> CFString cs = CFSTR ( kHWPlotLocation );
>
>
>
> // Make a CFURLRef from the CFString representation of the
> bundle's path.
>
> strcpy ( VersionString, "Unknown" );
>
> bundleURL = CFURLCreateWithFileSystemPath ( kCFAllocatorDefault,
> cs, kCFURLPOSIXPathStyle, true );
>
> CFRelease ( cs );
>
> if ( (CFURLRef)NULL != bundleURL )
>
> {
>
> myBundle = CFBundleCreate( kCFAllocatorDefault, bundleURL );
>
> if ( (CFBundleRef)NULL != myBundle )
>
> {
>
> // Try to get the version number from the bundle
>
> UInt32 ver = CFBundleGetVersionNumber ( bundle );
>
> UInt32 mode = ( ( ver >> 13 ) & 0x07 ) - 1;
>
> ShortString modes = kVersionStates;
>
>
>
> HWDBprintf ( 5, DBG_T, "ver = 0x%08lx, mode = 0x%08lx%s",
> ver, mode, NEWLINE );
>
> _stprintf ( VersionString, _T("v%d.%d.%d"), ( ( ver >> 24
> ) & 0xff ),
>
> ( ( ver >> 20 ) & 0x0f ), ( ( ver >> 16 ) &
> 0x0f ) );
>
> if ( kReleaseVersion != mode )
>
> {
>
> _stprintf ( buff, _T("%c%d"), modes [ mode ], ver &
> 0xff );
>
> _tcscat ( VersionString, buff );
>
> }
>
> CFRelease( myBundle );
>
> }
>
> CFRelease( bundleURL );
>
> }
>
> }
>
>
>
> This works perfectly well on PPC but on Intel the
> CFBundleGetVersionNumber() call always returns 0.
>
>
>
> I have tried KextManagerCreateURLForBundleIdentifier(), and also
> CFBundleGetValueForInfoDictionaryKey() with various key entries but with
> no success.
>
> I either get back a version number of ZERO, or the call returns NULL.
>
>
>
> Here is the info.plist file for my Intel driver which, except for the
> IOPCIPrimaryMatch field, is identical to the PPC driver info.plist:
>
>
>
> <?xml version="1.0" encoding="UTF-8"?>
>
> <!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN"
> "http://www.apple.com/DTDs/PropertyList-1.0.dtd";>
>
> <plist version="1.0">
>
> <dict>
>
> <key>CFBundleDevelopmentRegion</key>
>
> <string>English</string>
>
> <key>CFBundleExecutable</key>
>
> <string>HWPlot</string>
>
> <key>CFBundleGetInfoString</key>
>
> <string>HWPlot v5.0.2, Copyright 1996 - 2007 HighWater Designs
> Ltd.</string>
>
> <key>CFBundleIconFile</key>
>
> <string>hwplot.icns</string>
>
> <key>CFBundleIdentifier</key>
>
> <string>uk.co.highwater.iokit.HWPlot</string>
>
> <key>CFBundleInfoDictionaryVersion</key>
>
> <string>6.0</string>
>
> <key>CFBundleName</key>
>
> <string>HWPlot</string>
>
> <key>CFBundlePackageType</key>
>
> <string>KEXT</string>
>
> <key>CFBundleShortVersionString</key>
>
> <string>HWPlot v5.0.2</string>
>
> <key>CFBundleSignature</key>
>
> <string>HGWT</string>
>
> <key>CFBundleVersion</key>
>
> <string>5.0.2</string>
>
> <key>CFBundleVersionString</key>
>
> <string>5.0.2</string>
>
> <key>IOKitPersonalities</key>
>
> <dict>
>
> <key>HWPlot</key>
>
> <dict>
>
> <key>CFBundleIdentifier</key>
>
> <string>uk.co.highwater.iokit.HWPlot</string>
>
> <key>IOClass</key>
>
> <string>uk_co_highwater_iokit_HWPlot</string>
>
> <key>IOKitDebug</key>
>
> <integer>65535</integer>
>
> <key>IOMatchCategory</key>
>
> <string>HWPlot</string>
>
> <key>IOPCIPrimaryMatch</key>
>
> <string>0x099011e9&0x09f0ffff</string>
>
> <key>IOProviderClass</key>
>
> <string>IOPCIDevice</string>
>
> </dict>
>
> </dict>
>
> <key>OSBundleLibraries</key>
>
> <dict>
>
> <key>com.apple.iokit.IOFireWireFamily</key>
>
> <string>1.0</string>
>
> <key>com.apple.iokit.IOPCIFamily</key>
>
> <string>1.1</string>
>
> <key>com.apple.kernel.iokit</key>
>
> <string>1.1</string>
>
> <key>com.apple.kernel.libkern</key>
>
> <string>1.1</string>
>
> <key>com.apple.kernel.mach</key>
>
> <string>1.1</string>
>
> </dict>
>
> </dict>
>
> </plist>
>
>
>
> The driver's version information appears correctly in its Finder Get
> Info window, and is also correctly listed in the kextstat output.
>
>
>
> While not vitally important, I would like to understand why I can no
> longer retrieve this information from within my code.
>
> Any ideas?
>
>
>
>
>
> Peter Young
>
>
>
>
>
> " Build a man a fire - he's warm for a day. Set a man on fire - he's
> warm for the rest of his life!"
>
>
>
>
>
> *Peter Young*
> Senior Software Engineer
> /Remove *.nospam* from address/
> /email@hidden <mailto:email@hidden>/
>
>
>
> *HighWater Designs Ltd*
> 1-6 St. George's Business Park,
> Alstone Lane, Cheltenham,
> Gloucestershire, GL51 8HF UK
>
> Registered in England and Wales No 2111605. VAT No GB 448 485117
>
>
>
>
>
>
>
>
>
>
>
>
>
>
> No virus found in this outgoing message.
> Checked by AVG.
> Version: 7.5.467 / Virus Database: 269.6.2/787 - Release Date:
> 03/05/2007 14:11
>
>
> ------------------------------------------------------------------------
>
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