iOS 判断系统是否越狱的代码

+ (BOOL) hasCydia{

return [[NSFileManager defaultManager] fileExistsAtPath:@"/Applications/Cydia.app"];

}

+ (BOOL) hasAPT

{

return [[NSFileManager defaultManager] fileExistsAtPath:@"/private/var/lib/apt/"];

}

+ (BOOL) successCallSystem

{

return (system("ls") == 0) ? YES : NO;

}

+ (bool) testLibEnv

{

char *env = getenv("DYLD_INSERT_LIBRARIES");

NSLog(@"%s", env);

return env != NULL;

}

+ (BOOL) isJailbreak

{

BOOL b0 = [self hasCydia],

b1 = [self hasAPT],

b2 = [self successCallSystem],

b3 = [self testLibEnv];

return b0||b1||b2||b3;

}