AppleSystemInfo.c

#include <IOKit/IOKitLib.h>
#include <mach/mach.h>

int GetIOPlatformFeature(void)
{
    mach_port_t master_port = 0; // var_1C
    io_registry_entry_t path = 0; // rbx
    CFTypeRef platform_feature = NULL; // r14
    const UInt8 *platform_feature_ptr = NULL; // rbx

    if (IOMasterPort(0, &master_port) == 0)
    {
        path = IORegistryEntryFromPath(master_port, "IOService:/");
        if (path)
        {
            platform_feature = IORegistryEntryCreateCFProperty(path, CFSTR("platform-feature"), kCFAllocatorDefault, 0);
            IOObjectRelease(path);
        }

        if (master_port)
        {
            mach_port_deallocate(mach_task_self(), master_port);
        }

        path = 0;
        if (platform_feature)
        {
            if (CFGetTypeID(platform_feature) == CFDataGetTypeID())
            {
                platform_feature_ptr = CFDataGetBytePtr(platform_feature);
            }

            CFRelease(platform_feature);
        }
    }

    return *platform_feature_ptr;
}

bool ASI_IsPlatformFeatureEnabled(int feature)
{
    int v2 = false;
    int v3 = 0;
    bool v4 = false;
    CFStringRef v5 = NULL;
    CFStringRef v6 = NULL;
    bool v7 = false;
    bool v8 = false;
    bool v9 = false;
    bool v10 = false;

    // skipped the platform override part

    v3 = (unsigned int) feature & (unsigned int) GetIOPlatformFeature();
    v2 = (v3 == feature);
    v4 = (v3 != (unsigned int) feature);
    if (feature == 2 && v4)
    {
        v5 = ASI_CopyComputerModelName(true);
        v6 = v5;
        if (v5)
        {
            v7 = CFStringHasPrefix(v5, CFSTR("MacBookAir"));
            v8 = CFStringHasPrefix(v6, CFSTR("MacBookPro10"));
            CFRelease(v6);
            v9 = v7 != 0;
            v10 = v8 != 0;
        }
        else
        {
            v9 = false;
            v10 = false;
        }
        if (v9 || v10)
        {
            v2 = true;
        }
    }

    return v2;
}