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Copy pathtest-ffi-permission-allow-cli.js
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56 lines (47 loc) · 1.77 KB
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// Flags: --permission --allow-ffi --allow-child-process --experimental-ffi --allow-fs-read=* --allow-fs-write=*
'use strict';
const { skipIfFFIMissing } = require('../common');
const assert = require('node:assert');
const { spawnSync } = require('node:child_process');
const { test } = require('node:test');
const { fixtureSymbols, libraryPath } = require('./ffi-test-common');
skipIfFFIMissing();
const ffi = require('node:ffi');
test('allow-ffi enables ffi APIs and permission flag discovery', () => {
assert.ok(process.permission.has('ffi'));
assert.strictEqual(typeof ffi.DynamicLibrary, 'function');
assert.strictEqual(ffi.toString(0n), null);
const { stdout, status, signal } = spawnSync(process.execPath, [
'--permission',
'--expose-internals',
'--experimental-ffi',
'-p',
'JSON.stringify(require("internal/process/permission").availableFlags())',
], {
encoding: 'utf8',
});
assert.strictEqual(status, 0);
assert.strictEqual(signal, null);
assert.ok(JSON.parse(stdout).includes('--allow-ffi'));
});
test('allow-ffi permits library and memory operations', () => {
const { lib, functions } = ffi.dlopen(libraryPath, {
add_i32: fixtureSymbols.add_i32,
allocate_memory: fixtureSymbols.allocate_memory,
deallocate_memory: fixtureSymbols.deallocate_memory,
});
try {
assert.strictEqual(functions.add_i32(19, 23), 42);
assert.strictEqual(ffi.dlsym(lib, 'add_i32'), functions.add_i32.pointer);
const ptr = functions.allocate_memory(8n);
try {
ffi.exportString('allow', ptr, 8);
assert.strictEqual(ffi.toString(ptr), 'allow');
assert.deepStrictEqual([...ffi.toBuffer(ptr, 6)], [...Buffer.from('allow\0')]);
} finally {
functions.deallocate_memory(ptr);
}
} finally {
lib.close();
}
});