libMobileGestalt.dylib

libMobileGestalt is a library that can be used to get various system values such as the UDID, disk usage, device version and much more. It is comparable to liblockdown.dylib. See also lockdownd.

MGCopyAnswer

// Common form: MGCopyAnswer(CFStringRef string);
CFStringRef value = MGCopyAnswer(kMGDeviceColor);
NSLog(@"Value: %@", value);
CFRelease(value);

MGGetBoolAnswer (iOS 7+)

// bool MGGetBoolAnswer(CFStringRef key);
bool value = MGGetBoolAnswer(CFSTR("UIProceduralWallpaperCapability"));
NSLog(@"Value: %d", value);

References

• Header: https://github.com/theos/headers/blob/master/MobileGestalt/MobileGestalt.h

External links

• Deobfuscating libMobileGestalt keys
• List of all decrypted keys