<?php

function read_u8($hIn) {
    return ord(fRead($hIn, 1));
}

function read_u16($hIn) {
    return (
        (read_u8($hIn) <<  0) +
        (read_u8($hIn) <<  8)
    );
}

function read_u32($hIn) {
    return (
        (read_u8($hIn) <<  0) +
        (read_u8($hIn) <<  8) +
        (read_u8($hIn) << 16) +
        (read_u8($hIn) << 24)
    );
}

function read_str($hIn, $len) {
    return fRead($hIn, $len);
}

function read_str_null($hIn) {
    $str = '';
    while(($c = fRead($hIn, 1)) !== "\0") {
        $str .= $c;
    }
}

?>