avguesser/demo/avguess.mjs

Guess the type of an AV file based on its header

#!/usr/bin/env node
/*
 * This (un)license applies only to this sample code, and not to AVGuesser as
 * a whole:
 *
 * This is free and unencumbered software released into the public domain.
 *
 * Anyone is free to copy, modify, publish, use, compile, sell, or distribute
 * this software, either in source code form or as a compiled binary, for any
 * purpose, commercial or non-commercial, and by any means.
 *
 * In jurisdictions that recognize copyright laws, the author or authors of
 * this software dedicate any and all copyright interest in the software to the
 * public domain. We make this dedication for the benefit of the public at
 * large and to the detriment of our heirs and successors. We intend this
 * dedication to be an overt act of relinquishment in perpetuity of all present
 * and future rights to this software under copyright law.
 *
 * THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

import * as AVGuesser from "../src/avguesser.js"

import * as fs from "fs/promises";

let file;
{
    const fh = await fs.open(process.argv[2], "r");
    const buf = Buffer.alloc(12);
    const fd = await fh.read(buf, 0, 12);
    await fh.close();
    file = fd.buffer;
}

console.log(AVGuesser.guess(file));