| // Copyright Joyent, Inc. and other Node contributors. |
| // |
| // Permission is hereby granted, free of charge, to any person obtaining a |
| // copy of this software and associated documentation files (the |
| // "Software"), to deal in the Software without restriction, including |
| // without limitation the rights to use, copy, modify, merge, publish, |
| // distribute, sublicense, and/or sell copies of the Software, and to permit |
| // persons to whom the Software is furnished to do so, subject to the |
| // following conditions: |
| // |
| // The above copyright notice and this permission notice shall be included |
| // in all copies or substantial portions of the Software. |
| // |
| // 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 OR COPYRIGHT HOLDERS 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. |
| |
| // Some operating systems report errors when an UDP message is sent to an |
| // unreachable host. This error can be reported by sendto() and even by |
| // recvfrom(). Node should not propagate this error to the user. |
| |
| // We test this by sending a bunch of packets to random IPs. In the meantime |
| // we also send packets to ourselves to verify that after receiving an error |
| // we can still receive packets successfully. |
| |
| var ITERATIONS = 1000; |
| |
| var assert = require('assert'), |
| common = require('../common'), |
| dgram = require('dgram'); |
| |
| var buf = new Buffer(1024); |
| buf.fill(42); |
| |
| var packetsReceived = 0, |
| packetsSent = 0; |
| |
| var socket = dgram.createSocket('udp4'); |
| |
| socket.on('message', onMessage); |
| socket.on('listening', doSend); |
| socket.bind(common.PORT); |
| |
| function onMessage(message, info) { |
| packetsReceived++; |
| if (packetsReceived < ITERATIONS) { |
| doSend(); |
| } else { |
| socket.close(); |
| } |
| } |
| |
| function afterSend(err) { |
| if (err) throw err; |
| packetsSent++; |
| } |
| |
| function doSend() { |
| // Generate a random IP. |
| var parts = []; |
| for (var i = 0; i < 4; i++) { |
| // Generate a random number in the range 1..254. |
| parts.push(Math.floor(Math.random() * 254) + 1); |
| } |
| var ip = parts.join('.'); |
| |
| socket.send(buf, 0, buf.length, 1, ip, afterSend); |
| socket.send(buf, 0, buf.length, common.PORT, '127.0.0.1', afterSend); |
| } |
| |
| process.on('exit', function() { |
| console.log(packetsSent + ' UDP packets sent, ' + |
| packetsReceived + ' received'); |
| |
| assert.strictEqual(packetsSent, ITERATIONS * 2); |
| assert.strictEqual(packetsReceived, ITERATIONS); |
| }); |