#include <assert.h>
#include <CoreFoundation/CoreFoundation.h>
#include <IOKit/IOKitLib.h>
#include <IOKit/IOKitKeys.h>
int main(int argc, char **argv)
{
kern_return_t status;
mach_port_t masterPort;
io_registry_entry_t root;
CFDictionaryRef dictionary;
CFDictionaryRef props;
CFStringRef key;
CFNumberRef num;
int arg;
if( argc < 2 ) {
printf("%s ClassName...\n", argv[0]);
exit(0);
}
status = IOMasterPort(bootstrap_port, &masterPort);
assert(status == KERN_SUCCESS);
root = IORegistryGetRootEntry(masterPort);
assert(root);
status = IORegistryEntryCreateCFProperties(root,
(CFTypeRef *)&props,
kCFAllocatorDefault, kNilOptions );
assert( KERN_SUCCESS == status );
assert( CFDictionaryGetTypeID() == CFGetTypeID(props));
dictionary = (CFDictionaryRef)
CFDictionaryGetValue( props, CFSTR(kIOKitDiagnosticsKey));
assert( dictionary );
assert( CFDictionaryGetTypeID() == CFGetTypeID(dictionary));
dictionary = (CFDictionaryRef)
CFDictionaryGetValue( dictionary, CFSTR("Classes"));
assert( dictionary );
assert( CFDictionaryGetTypeID() == CFGetTypeID(dictionary));
for( arg = 1; arg < argc; arg++ ) {
key = CFStringCreateWithCString(kCFAllocatorDefault,
argv[arg], CFStringGetSystemEncoding());
assert(key);
num = (CFNumberRef) CFDictionaryGetValue(dictionary, key);
CFRelease(key);
if( num) {
SInt32 num32;
assert( CFNumberGetTypeID() == CFGetTypeID(num) );
CFNumberGetValue(num, kCFNumberSInt32Type, &num32);
printf("%s = %d, ", argv[arg], (int)num32);
}
}
if( num)
printf("\n");
CFRelease(props);
IOObjectRelease(root);
exit(0);
}