vita c load settings function

void LoadUserloginData(){

    int fh = sceIoOpen(userSettingsPath.c_str(), SCE_O_RDONLY | SCE_O_CREAT, 0777);
    if(fh < 0){
        return;
    }

    char setbuf[512];
    int readbytes = sceIoRead(fh , setbuf , 512);

    bool readusername = true;
    usernameTextString = "";
    passwordTextString = "";

    for(int i = 0; i < 512 ; i++){
        if(setbuf[i] == '\0'){
            break;
        }else if(setbuf[i] == '\n' && readusername){
            readusername = false;
        }else if(setbuf[i] == '\n' && !readusername){
            break;
        }else if(readusername){
            usernameTextString += setbuf[i];
        }else{
            passwordTextString += setbuf[i];
        }

    }
}


// this gives me username = John
// and password = mysecret\n\nÿÿÿ...ÿÿÿ