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// Flags: --expose-internals
'use strict';
const common = require('../common');
const assert = require('assert');
const net = require('net');
const fs = require('fs');
const { getSystemErrorName } = require('util');
const { internalBinding } = require('internal/test/binding');
const { TCP, constants: TCPConstants } = internalBinding('tcp_wrap');
const { Pipe, constants: PipeConstants } = internalBinding('pipe_wrap');
const tmpdir = require('../common/tmpdir');
tmpdir.refresh();
function closeServer() {
return common.mustCall(function() {
this.close();
});
}
// server.listen(pipe) creates a new pipe wrap,
// so server.close() doesn't actually unlink this existing pipe.
// It needs to be unlinked separately via handle.close()
function closePipeServer(handle) {
return common.mustCall(function() {
this.close();
handle.close();
});
}
let counter = 0;
// Avoid conflict with listen-path
function randomPipePath() {
return `${common.PIPE}-listen-handle-${counter++}`;
}
function randomHandle(type) {
let handle, errno, handleName;
if (type === 'tcp') {
handle = new TCP(TCPConstants.SOCKET);
errno = handle.bind('0.0.0.0', 0);
handleName = 'arbitrary tcp port';
} else {
const path = randomPipePath();
handle = new Pipe(PipeConstants.SOCKET);
errno = handle.bind(path);
handleName = `pipe ${path}`;
}
if (errno < 0) {
assert.fail(`unable to bind ${handleName}: ${getSystemErrorName(errno)}`);
}
if (!common.isWindows) { // `fd` doesn't work on Windows.
// err >= 0 but fd = -1, should not happen
assert.notStrictEqual(handle.fd, -1,
`Bound ${handleName} has fd -1 and errno ${errno}`);
}
return handle;
}
// Not a public API, used by child_process
{
// Test listen(tcp)
net.createServer()
.listen(randomHandle('tcp'))
.on('listening', closeServer());
// Test listen(tcp, cb)
net.createServer()
.listen(randomHandle('tcp'), closeServer());
}
function randomPipes(number) {
const arr = [];
for (let i = 0; i < number; ++i) {
arr.push(randomHandle('pipe'));
}
return arr;
}
// Not a public API, used by child_process
if (!common.isWindows) { // Windows doesn't support {fd: <n>}
const handles = randomPipes(2); // Generate pipes in advance
// Test listen(pipe)
net.createServer()
.listen(handles[0])
.on('listening', closePipeServer(handles[0]));
// Test listen(pipe, cb)
net.createServer()
.listen(handles[1], closePipeServer(handles[1]));
}
{
// Test listen({handle: tcp}, cb)
net.createServer()
.listen({ handle: randomHandle('tcp') }, closeServer());
// Test listen({handle: tcp})
net.createServer()
.listen({ handle: randomHandle('tcp') })
.on('listening', closeServer());
// Test listen({_handle: tcp}, cb)
net.createServer()
.listen({ _handle: randomHandle('tcp') }, closeServer());
// Test listen({_handle: tcp})
net.createServer()
.listen({ _handle: randomHandle('tcp') })
.on('listening', closeServer());
}
if (!common.isWindows) { // Windows doesn't support {fd: <n>}
// Test listen({fd: tcp.fd}, cb)
net.createServer()
.listen({ fd: randomHandle('tcp').fd }, closeServer());
// Test listen({fd: tcp.fd})
net.createServer()
.listen({ fd: randomHandle('tcp').fd })
.on('listening', closeServer());
}
if (!common.isWindows) { // Windows doesn't support {fd: <n>}
const handles = randomPipes(6); // Generate pipes in advance
// Test listen({handle: pipe}, cb)
net.createServer()
.listen({ handle: handles[0] }, closePipeServer(handles[0]));
// Test listen({handle: pipe})
net.createServer()
.listen({ handle: handles[1] })
.on('listening', closePipeServer(handles[1]));
// Test listen({_handle: pipe}, cb)
net.createServer()
.listen({ _handle: handles[2] }, closePipeServer(handles[2]));
// Test listen({_handle: pipe})
net.createServer()
.listen({ _handle: handles[3] })
.on('listening', closePipeServer(handles[3]));
// Test listen({fd: pipe.fd}, cb)
net.createServer()
.listen({ fd: handles[4].fd }, closePipeServer(handles[4]));
// Test listen({fd: pipe.fd})
net.createServer()
.listen({ fd: handles[5].fd })
.on('listening', closePipeServer(handles[5]));
}
if (!common.isWindows) { // Windows doesn't support {fd: <n>}
// Test invalid fd
const fd = fs.openSync(__filename, 'r');
net.createServer()
.listen({ fd }, common.mustNotCall())
.on('error', common.mustCall(function(err) {
assert.strictEqual(String(err), 'Error: listen EINVAL: invalid argument');
this.close();
}));
}
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