IOS Unique identifier Fetch

//  UDIDTools.h
//  Udidtools////
Created by Lovell on  9/9/16.  copyright©2016 Lovell. All rights reserved.

#import <Foundation/Foundation.h>

@interface udidtools:nsobject
 * * @brief obtain Unique Device Identity
 *
/+ (nsstring*) UDID;

@end

UDIDTOOLS.M//Udidtools////Created by Lovell on 9/9/16. copyright©2016 Lovell.
All rights reserved. #import "UDIDTools.h" #import <Security/Security.h> #include <sys/socket.h> #include <sys/sysctl.h > #include <net/if.h> #include <net/if_dl.h>//Replace the identity with your company ' s domain static con
St Char kkeychainudiditemidentifier[] = "UUID";

static const char kkeychainudidaccessgroup[] = "YOURAPPID.com.cnblogs.smileEvday";
    @implementation Udidtools + (nsstring*) UDID {nsstring *udid = [Udidtools getudidfromkeychain];
        if (!udid) {nsstring *sysversion = [Uidevice currentdevice].systemversion;

        CGFloat Version = [Sysversion Floatvalue];
        if (version >= 7.0) {udid = [udidtools _udid_ios7];
        else if (version >= 2.0) {udid = [udidtools _UDID_IOS6];
    } [Udidtools Settudidtokeychain:udid];
return udid; } * * IOS 6.0 *Use WiFi ' s MAC address */+ (nsstring*) _udid_ios6 {return [Udidtools getmacaddress];} * * iOS 7.0 * Starting from iOS 7, the system always returns the "value 02:00:00:00:00:00 *" When you ask for the MAC ad
 Dress on any device. * Use Identifierforvendor + keychain * Make sure UDID consistency atfer app Delete and reinstall */+ (nsstring*) _udid_i


OS7 {return [[Uidevice Currentdevice].identifierforvendor uuidstring];} #pragma mark-#pragma mark Helper method to get MAC address//Http://stackoverflow.com/questions/677530/how-can-i
    -programmatically-get-the-mac-address-of-an-iphone + (NSString *) getmacaddress {int mgmtinfobase[6];
    char *msgbuffer = NULL;
    size_t length;
    unsigned char macaddress[6];
    struct IF_MSGHDR *interfacemsgstruct;
    struct SOCKADDR_DL *socketstruct;

    NSString *errorflag = nil; Setup The Management Information Base (MIB) mgmtinfobase[0] = CTL_net;       Request network subsystem mgmtinfobase[1] = Af_route;
    Routing Table Info Mgmtinfobase[2] = 0;        MGMTINFOBASE[3] = Af_link;  Request link layer information mgmtinfobase[4] = net_rt_iflist; Request all configured interfaces//with the all configured interfaces requested, get handle index if (mgmtinfob
ASE[5] = If_nametoindex ("En0")) = = 0) Errorflag = @ "If_nametoindex failure"; else {//Get the size of the data available (store in Len) if (Sysctl (Mgmtinfobase, 6, NULL, &len
    Gth, NULL, 0) < 0) Errorflag = @ "Sysctl mgmtinfobase failure";
                else {//Alloc memory based on above call if ((Msgbuffer = malloc (length)) = = NULL)
        Errorflag = @ "Buffer allocation failure"; else {//Get system information, store in buffer if (Sysctl mgmtinfobase, 6,
         Msgbuffer, &length, NULL, 0) < 0)       Errorflag = @ "Sysctl msgbuffer failure"; }}//Befor going any further ... if (Errorflag!= NULL) {NSLog (@ "Error:%@", Errorfla
        g);
        if (Msgbuffer) {free (msgbuffer);
    return errorflag;

    }//Map Msgbuffer to Interface message structure interfacemsgstruct = (struct IF_MSGHDR *) Msgbuffer;

    Map to LINK-LEVEL socket structure socketstruct = (struct SOCKADDR_DL *) (interfacemsgstruct + 1); Copy link Layer address data in the socket structure to a array memcpy (&macaddress, Socketstruct->sdl_data + so

    Cketstruct->sdl_nlen, 6); Read from char array into a string object, to traditional MAC address format nsstring *macaddressstring = [Nsstri ng stringwithformat:@ "%02x:%02x:%02x:%02x:%02x:%02x", Macaddress[0], macaddress[1], macaddress[2], macAddress[3],
    MACADDRESS[4], macaddress[5]];

    NSLog (@ "MAC address:%@", macaddressstring); RelEase the buffer memory free (msgbuffer);
return macaddressstring;
    #pragma mark-#pragma mark Helper method to make Identityforvendor consistency + (nsstring*) Getudidfromkeychain {
    Nsmutabledictionary *dictforquery = [[Nsmutabledictionary alloc] init];

    [Dictforquery SetValue: (ID) Ksecclassgenericpassword Forkey: (ID) ksecclass];
    Set Attr Description for query [Dictforquery setvalue:[nsstring Stringwithutf8string:kkeychainudiditemidentifier]

    Forkey:ksecattrdescription]; Set Attr Identity for query NSData *keychainitemid = [NSData datawithbytes:kkeychainudiditemidentifier length:s
    Trlen (Kkeychainudiditemidentifier)];

    [Dictforquery setobject:keychainitemid Forkey: (ID) ksecattrgeneric]; The Keychain Access group attribute determines if this item can be shared//amongst multiple apps whose code SIGNI
    ng entitlements contain the same Keychain Access group. NSString *accessgroup = [NSString Stringwithutf8string:kkeychainudidaCcessgroup]; if (Accessgroup!= nil) {#if target_iphone_simulator//Ignore The Access group if running on the IPHONE Simu
    Lator. Apps that are built for the simulator aren ' t signed, so there ' s no Keychain Access group//for the Simulato R to check.
    This means so all apps can be all keychain items when run//on the simulator. If A Secitem contains an Access group attribute, Secitemadd and secitemupdate on the//simulator would retur
        n-25243 (Errsecnoaccessforitem).
#else [Dictforquery setobject:accessgroup forkey: (ID) ksecattraccessgroup];
    #endif} [Dictforquery SetValue: (ID) kcfbooleantrue Forkey: (ID) ksecmatchcaseinsensitive];
    [Dictforquery SetValue: (ID) ksecmatchlimitone Forkey: (ID) ksecmatchlimit];

    [Dictforquery SetValue: (ID) kcfbooleantrue Forkey: (ID) ksecreturndata];
    Osstatus queryerr = NOERR;
    NSData *udidvalue = nil;
    NSString *udid = nil; Queryerr = secitemcopymatching((Cfdictionaryref) Dictforquery, (cftyperef*) &udidvalue);
    Nsmutabledictionary *dict = nil;
    [Dictforquery SetValue: (ID) kcfbooleantrue Forkey: (ID) ksecreturnattributes];

    Queryerr = secitemcopymatching (cfdictionaryref) dictforquery, (cftyperef*) &dict); if (Queryerr = = Errsecitemnotfound) {NSLog (@ "Keychain Item:%@ not Found!!!", [NSString Stringwithutf8string:kkey
    Chainudiditemidentifier]); else if (Queryerr!= errsecsuccess) {NSLog (@ Keychain Item query Error!!!
    Error code:%ld ", Queryerr);

        } if (Queryerr = = errsecsuccess) {NSLog (@ "Keychain Item:%@", udidvalue);
            if (udidvalue) {udid = [nsstring stringWithUTF8String:udidValue.bytes];
        [Udidvalue release];
    [Dict release];
    [Dictforquery release];
return udid;

    } + (BOOL) Settudidtokeychain: (nsstring*) udid {nsmutabledictionary *dictforadd = [[Nsmutabledictionary alloc] init]; [Dictforadd SetValue: (ID)Ksecclassgenericpassword Forkey: (ID) ksecclass];

    [Dictforadd setvalue:[nsstring Stringwithutf8string:kkeychainudiditemidentifier] forKey:kSecAttrDescription];

    [Dictforadd setvalue:@ "UUID" Forkey: (ID) ksecattrgeneric];
    Default attributes for keychain item.
    [Dictforadd setobject:@ "" Forkey: (ID) ksecattraccount];


    [Dictforadd setobject:@ "" Forkey: (ID) Ksecattrlabel]; The Keychain Access group attribute determines if this item can be shared//amongst multiple apps whose code SIGNI
    ng entitlements contain the same Keychain Access group.
    NSString *accessgroup = [NSString Stringwithutf8string:kkeychainudidaccessgroup]; if (Accessgroup!= nil) {#if target_iphone_simulator//Ignore The Access group if running on the IPHONE Simu
    Lator. Apps that are built for the simulator aren ' t signed, so there ' s no Keychain Access group//for the Simulato R to check. This means-all apps can-all keychain items when run//on THe simulator. If A Secitem contains an Access group attribute, Secitemadd and secitemupdate on the//simulator would retur
        n-25243 (Errsecnoaccessforitem).
#else [Dictforadd setobject:accessgroup forkey: (ID) ksecattraccessgroup];
    #endif} const char *UDIDSTR = [Udid utf8string];
    NSData *keychainitemvalue = [NSData datawithbytes:udidstr Length:strlen (UDIDSTR)];

    [Dictforadd setvalue:keychainitemvalue Forkey: (ID) ksecvaluedata];
    Osstatus writeerr = NOERR;
        if ([Udidtools Getudidfromkeychain]) {//There is item in keychain [Udidtools Updateudidinkeychain:udid];
        [Dictforadd release];
    return YES;
        else {//Add item to Keychain Writeerr = Secitemadd ((cfdictionaryref) Dictforadd, NULL); if (Writeerr!= errsecsuccess) {NSLog (@ "ADD keychain Item Error!!!

            Error code:%ld ", Writeerr);
            [Dictforadd release];
        return NO; } else{NSLog (@ "ADD keychain Item Success!!!");
            [Dictforadd release];
        return YES;
    } [Dictforadd release];
return NO;

    } + (BOOL) removeudidfromkeychain {nsmutabledictionary *dicttodelete = [[Nsmutabledictionary alloc] init];

    [Dicttodelete SetValue: (ID) Ksecclassgenericpassword Forkey: (ID) ksecclass]; NSData *keychainitemid = [NSData datawithbytes:kkeychainudiditemidentifier Length:strlen (
    Kkeychainudiditemidentifier)];

    [Dicttodelete setvalue:keychainitemid Forkey: (ID) ksecattrgeneric];
    Osstatus deleteerr = NOERR;
    Deleteerr = Secitemdelete ((cfdictionaryref) dicttodelete); if (Deleteerr!= errsecsuccess) {NSLog (@ "Delete UUID from keychain Error!!!
        Error code:%ld ", Deleteerr);
        [Dicttodelete release];
    return NO;

    else {NSLog (@ "DELETE success!!!");}
    [Dicttodelete release];
return YES; } + (BOOL) Updateudidinkeychain: (nsstring*) Newudid {nsmutabledictionary *dictforquery = [[Nsmutabledictionary alloc] init];

    [Dictforquery SetValue: (ID) Ksecclassgenericpassword Forkey: (ID) ksecclass]; NSData *keychainitemid = [NSData datawithbytes:kkeychainudiditemidentifier Length:strlen (
    Kkeychainudiditemidentifier)];
    [Dictforquery setvalue:keychainitemid Forkey: (ID) ksecattrgeneric];
    [Dictforquery SetValue: (ID) kcfbooleantrue Forkey: (ID) ksecmatchcaseinsensitive];
    [Dictforquery SetValue: (ID) ksecmatchlimitone Forkey: (ID) ksecmatchlimit];

    [Dictforquery SetValue: (ID) kcfbooleantrue Forkey: (ID) ksecreturnattributes];
    Nsdictionary *queryresult = nil; Secitemcopymatching ((cfdictionaryref) dictforquery