session-ios/Signal/src/util/UIDevice+TSHardwareVersion.m

//
//  UIDevice+TSHardwareVersion.m
//  Signal
//
//  Created by Dylan Bourgeois on 19/12/14.
//  Copyright (c) 2014 Open Whisper Systems. All rights reserved.
//
//  Original Source :
//  Erica Sadun, http://ericasadun.com
//  iPhone Developer's Cookbook, 6.x Edition
//  BSD License, Use at your own risk
//
//

#include <sys/sysctl.h>
#import "UIDevice+TSHardwareVersion.h"

@implementation UIDevice (TSHardwareVersion)

- (NSString *)getSysInfoByName:(char *)typeSpecifier {
    size_t size;
    sysctlbyname(typeSpecifier, NULL, &size, NULL, 0);

    char *answer = malloc(size);
    sysctlbyname(typeSpecifier, answer, &size, NULL, 0);

    NSString *results = [NSString stringWithCString:answer encoding:NSUTF8StringEncoding];

    free(answer);
    return results;
}

- (NSString *)modelIdentifier {
    return [self getSysInfoByName:"hw.machine"];
}

- (NSString *)modelName {
    return [self modelNameForModelIdentifier:[self modelIdentifier]];
}

- (NSString *)modelNameForModelIdentifier:(NSString *)modelIdentifier {
    // iPhone http://theiphonewiki.com/wiki/IPhone

    if ([modelIdentifier isEqualToString:@"iPhone1,1"])
        return @"iPhone 1G";
    if ([modelIdentifier isEqualToString:@"iPhone1,2"])
        return @"iPhone 3G";
    if ([modelIdentifier isEqualToString:@"iPhone2,1"])
        return @"iPhone 3GS";
    if ([modelIdentifier isEqualToString:@"iPhone3,1"])
        return @"iPhone 4 (GSM)";
    if ([modelIdentifier isEqualToString:@"iPhone3,2"])
        return @"iPhone 4 (GSM Rev A)";
    if ([modelIdentifier isEqualToString:@"iPhone3,3"])
        return @"iPhone 4 (CDMA)";
    if ([modelIdentifier isEqualToString:@"iPhone4,1"])
        return @"iPhone 4S";
    if ([modelIdentifier isEqualToString:@"iPhone5,1"])
        return @"iPhone 5 (GSM)";
    if ([modelIdentifier isEqualToString:@"iPhone5,2"])
        return @"iPhone 5 (Global)";
    if ([modelIdentifier isEqualToString:@"iPhone5,3"])
        return @"iPhone 5c (GSM)";
    if ([modelIdentifier isEqualToString:@"iPhone5,4"])
        return @"iPhone 5c (Global)";
    if ([modelIdentifier isEqualToString:@"iPhone6,1"])
        return @"iPhone 5s (GSM)";
    if ([modelIdentifier isEqualToString:@"iPhone6,2"])
        return @"iPhone 5s (Global)";
    if ([modelIdentifier isEqualToString:@"iPhone7,1"])
        return @"iPhone 6 Plus";
    if ([modelIdentifier isEqualToString:@"iPhone7,2"])
        return @"iPhone 6";

    // iPad http://theiphonewiki.com/wiki/IPad

    if ([modelIdentifier isEqualToString:@"iPad1,1"])
        return @"iPad 1G";
    if ([modelIdentifier isEqualToString:@"iPad2,1"])
        return @"iPad 2 (Wi-Fi)";
    if ([modelIdentifier isEqualToString:@"iPad2,2"])
        return @"iPad 2 (GSM)";
    if ([modelIdentifier isEqualToString:@"iPad2,3"])
        return @"iPad 2 (CDMA)";
    if ([modelIdentifier isEqualToString:@"iPad2,4"])
        return @"iPad 2 (Rev A)";
    if ([modelIdentifier isEqualToString:@"iPad3,1"])
        return @"iPad 3 (Wi-Fi)";
    if ([modelIdentifier isEqualToString:@"iPad3,2"])
        return @"iPad 3 (GSM)";
    if ([modelIdentifier isEqualToString:@"iPad3,3"])
        return @"iPad 3 (Global)";
    if ([modelIdentifier isEqualToString:@"iPad3,4"])
        return @"iPad 4 (Wi-Fi)";
    if ([modelIdentifier isEqualToString:@"iPad3,5"])
        return @"iPad 4 (GSM)";
    if ([modelIdentifier isEqualToString:@"iPad3,6"])
        return @"iPad 4 (Global)";

    if ([modelIdentifier isEqualToString:@"iPad4,1"])
        return @"iPad Air (Wi-Fi)";
    if ([modelIdentifier isEqualToString:@"iPad4,2"])
        return @"iPad Air (Cellular)";
    if ([modelIdentifier isEqualToString:@"iPad5,3"])
        return @"iPad Air 2 (Wi-Fi)";
    if ([modelIdentifier isEqualToString:@"iPad5,4"])
        return @"iPad Air 2 (Cellular)";

    // iPad Mini http://theiphonewiki.com/wiki/IPad_mini

    if ([modelIdentifier isEqualToString:@"iPad2,5"])
        return @"iPad mini 1G (Wi-Fi)";
    if ([modelIdentifier isEqualToString:@"iPad2,6"])
        return @"iPad mini 1G (GSM)";
    if ([modelIdentifier isEqualToString:@"iPad2,7"])
        return @"iPad mini 1G (Global)";
    if ([modelIdentifier isEqualToString:@"iPad4,4"])
        return @"iPad mini 2G (Wi-Fi)";
    if ([modelIdentifier isEqualToString:@"iPad4,5"])
        return @"iPad mini 2G (Cellular)";
    if ([modelIdentifier isEqualToString:@"iPad4,7"])
        return @"iPad mini 3G (Wi-Fi)";
    if ([modelIdentifier isEqualToString:@"iPad4,8"])
        return @"iPad mini 3G (Cellular)";
    if ([modelIdentifier isEqualToString:@"iPad4,9"])
        return @"iPad mini 3G (Cellular)";

    // iPod http://theiphonewiki.com/wiki/IPod

    if ([modelIdentifier isEqualToString:@"iPod1,1"])
        return @"iPod touch 1G";
    if ([modelIdentifier isEqualToString:@"iPod2,1"])
        return @"iPod touch 2G";
    if ([modelIdentifier isEqualToString:@"iPod3,1"])
        return @"iPod touch 3G";
    if ([modelIdentifier isEqualToString:@"iPod4,1"])
        return @"iPod touch 4G";
    if ([modelIdentifier isEqualToString:@"iPod5,1"])
        return @"iPod touch 5G";

    // Simulator
    if ([modelIdentifier hasSuffix:@"86"] || [modelIdentifier isEqual:@"x86_64"]) {
        BOOL smallerScreen = ([[UIScreen mainScreen] bounds].size.width < 768.0);
        return (smallerScreen ? @"iPhone Simulator" : @"iPad Simulator");
    }

    return modelIdentifier;
}

- (UIDeviceFamily)deviceFamily {
    NSString *modelIdentifier = [self modelIdentifier];
    if ([modelIdentifier hasPrefix:@"iPhone"])
        return UIDeviceFamilyiPhone;
    if ([modelIdentifier hasPrefix:@"iPod"])
        return UIDeviceFamilyiPod;
    if ([modelIdentifier hasPrefix:@"iPad"])
        return UIDeviceFamilyiPad;
    return UIDeviceFamilyUnknown;
}

- (BOOL)isiPhoneVersionSixOrMore {
    return
        [[self modelIdentifier] isEqualToString:@"iPhone7,1"] || [[self modelIdentifier] isEqualToString:@"iPhone7,2"];
}
@end