offsets in c.c file

[iHTCboy]

Hello, can offsets be abbreviated as this：

void * normal_function1(const char * arg1, int arg2) {
    
    //long long offset = (long long)dyld_stub_binder - (long long)dlopen;
    //return ((void *(*)(const char *, int))((long long)dyld_stub_binder - offset))(arg1, arg2);
    
    return ((void *(*)(const char *, int))((long long)dlopen))(arg1, arg2);
}

void * normal_function2(void * arg1, const char * arg2) {
    
    //long long offset = (long long)dyld_stub_binder - (long long)dlsym;
    //return ((void *(*)(void *, const char *))((long long)dyld_stub_binder - offset))(arg1, arg2);

    return ((void *(*)(void *, const char *))((long long)dlsym))(arg1, arg2);
}

It can work, but I don’t know if there are potential risks? thanks~

[illusionofchaos]

You can actually call dlopen and dlsym directly, but the purpose of calling them by using their location in memory instead of referencing them is to avoid detection by Apple. Your version references these symbols, so Apple will be able to see that and reject the binary when you try to submit it into the App Store.