import { createRequire } from 'module'; const require = createRequire(import.meta.url); var Module = (() => { var _scriptDir = import.meta.url; return ( function(moduleArg = {}) { // include: shell.js // The Module object: Our interface to the outside world. We import // and export values on it. There are various ways Module can be used: // 1. Not defined. We create it here // 2. A function parameter, function(Module) { ..generated code.. } // 3. pre-run appended it, var Module = {}; ..generated code.. // 4. External script tag defines var Module. // We need to check if Module already exists (e.g. case 3 above). // Substitution will be replaced with actual code on later stage of the build, // this way Closure Compiler will not mangle it (e.g. case 4. above). // Note that if you want to run closure, and also to use Module // after the generated code, you will need to define var Module = {}; // before the code. Then that object will be used in the code, and you // can continue to use Module afterwards as well. var Module = moduleArg; // Set up the promise that indicates the Module is initialized var readyPromiseResolve, readyPromiseReject; Module['ready'] = new Promise((resolve, reject) => { readyPromiseResolve = resolve; readyPromiseReject = reject; }); ["_main","_memory","_php_wasm_run","_fflush","___indirect_function_table","onRuntimeInitialized"].forEach((prop) => { if (!Object.getOwnPropertyDescriptor(Module['ready'], prop)) { Object.defineProperty(Module['ready'], prop, { get: () => abort('You are getting ' + prop + ' on the Promise object, instead of the instance. Use .then() to get called back with the instance, see the MODULARIZE docs in src/settings.js'), set: () => abort('You are setting ' + prop + ' on the Promise object, instead of the instance. Use .then() to get called back with the instance, see the MODULARIZE docs in src/settings.js'), }); } }); // --pre-jses are emitted after the Module integration code, so that they can // refer to Module (if they choose; they can also define Module) // Sometimes an existing Module object exists with properties // meant to overwrite the default module functionality. Here // we collect those properties and reapply _after_ we configure // the current environment's defaults to avoid having to be so // defensive during initialization. var moduleOverrides = Object.assign({}, Module); var arguments_ = []; var thisProgram = './this.program'; var quit_ = (status, toThrow) => { throw toThrow; }; // Determine the runtime environment we are in. You can customize this by // setting the ENVIRONMENT setting at compile time (see settings.js). var ENVIRONMENT_IS_WEB = false; var ENVIRONMENT_IS_WORKER = false; var ENVIRONMENT_IS_NODE = true; var ENVIRONMENT_IS_SHELL = false; if (Module['ENVIRONMENT']) { throw new Error('Module.ENVIRONMENT has been deprecated. To force the environment, use the ENVIRONMENT compile-time option (for example, -sENVIRONMENT=web or -sENVIRONMENT=node)'); } // `/` should be present at the end if `scriptDirectory` is not empty var scriptDirectory = ''; function locateFile(path) { if (Module['locateFile']) { return Module['locateFile'](path, scriptDirectory); } return scriptDirectory + path; } // Hooks that are implemented differently in different runtime environments. var read_, readAsync, readBinary; if (ENVIRONMENT_IS_NODE) { if (typeof process == 'undefined' || !process.release || process.release.name !== 'node') throw new Error('not compiled for this environment (did you build to HTML and try to run it not on the web, or set ENVIRONMENT to something - like node - and run it someplace else - like on the web?)'); var nodeVersion = process.versions.node; var numericVersion = nodeVersion.split('.').slice(0, 3); numericVersion = (numericVersion[0] * 10000) + (numericVersion[1] * 100) + (numericVersion[2].split('-')[0] * 1); var minVersion = 160000; if (numericVersion < 160000) { throw new Error('This emscripten-generated code requires node v16.0.0 (detected v' + nodeVersion + ')'); } // `require()` is no-op in an ESM module, use `createRequire()` to construct // the require()` function. This is only necessary for multi-environment // builds, `-sENVIRONMENT=node` emits a static import declaration instead. // TODO: Swap all `require()`'s with `import()`'s? // These modules will usually be used on Node.js. Load them eagerly to avoid // the complexity of lazy-loading. var fs = require('fs'); var nodePath = require('path'); if (ENVIRONMENT_IS_WORKER) { scriptDirectory = nodePath.dirname(scriptDirectory) + '/'; } else { // EXPORT_ES6 + ENVIRONMENT_IS_NODE always requires use of import.meta.url, // since there's no way getting the current absolute path of the module when // support for that is not available. scriptDirectory = require('url').fileURLToPath(new URL('./', import.meta.url)); // includes trailing slash } // include: node_shell_read.js read_ = (filename, binary) => { // We need to re-wrap `file://` strings to URLs. Normalizing isn't // necessary in that case, the path should already be absolute. filename = isFileURI(filename) ? new URL(filename) : nodePath.normalize(filename); return fs.readFileSync(filename, binary ? undefined : 'utf8'); }; readBinary = (filename) => { var ret = read_(filename, true); if (!ret.buffer) { ret = new Uint8Array(ret); } assert(ret.buffer); return ret; }; readAsync = (filename, onload, onerror, binary = true) => { // See the comment in the `read_` function. filename = isFileURI(filename) ? new URL(filename) : nodePath.normalize(filename); fs.readFile(filename, binary ? undefined : 'utf8', (err, data) => { if (err) onerror(err); else onload(binary ? data.buffer : data); }); }; // end include: node_shell_read.js if (!Module['thisProgram'] && process.argv.length > 1) { thisProgram = process.argv[1].replace(/\\/g, '/'); } arguments_ = process.argv.slice(2); // MODULARIZE will export the module in the proper place outside, we don't need to export here quit_ = (status, toThrow) => { process.exitCode = status; throw toThrow; }; Module['inspect'] = () => '[Emscripten Module object]'; } else if (ENVIRONMENT_IS_SHELL) { if ((typeof process == 'object' && typeof require === 'function') || typeof window == 'object' || typeof importScripts == 'function') throw new Error('not compiled for this environment (did you build to HTML and try to run it not on the web, or set ENVIRONMENT to something - like node - and run it someplace else - like on the web?)'); if (typeof read != 'undefined') { read_ = read; } readBinary = (f) => { if (typeof readbuffer == 'function') { return new Uint8Array(readbuffer(f)); } let data = read(f, 'binary'); assert(typeof data == 'object'); return data; }; readAsync = (f, onload, onerror) => { setTimeout(() => onload(readBinary(f))); }; if (typeof clearTimeout == 'undefined') { globalThis.clearTimeout = (id) => {}; } if (typeof setTimeout == 'undefined') { // spidermonkey lacks setTimeout but we use it above in readAsync. globalThis.setTimeout = (f) => (typeof f == 'function') ? f() : abort(); } if (typeof scriptArgs != 'undefined') { arguments_ = scriptArgs; } else if (typeof arguments != 'undefined') { arguments_ = arguments; } if (typeof quit == 'function') { quit_ = (status, toThrow) => { // Unlike node which has process.exitCode, d8 has no such mechanism. So we // have no way to set the exit code and then let the program exit with // that code when it naturally stops running (say, when all setTimeouts // have completed). For that reason, we must call `quit` - the only way to // set the exit code - but quit also halts immediately. To increase // consistency with node (and the web) we schedule the actual quit call // using a setTimeout to give the current stack and any exception handlers // a chance to run. This enables features such as addOnPostRun (which // expected to be able to run code after main returns). setTimeout(() => { if (!(toThrow instanceof ExitStatus)) { let toLog = toThrow; if (toThrow && typeof toThrow == 'object' && toThrow.stack) { toLog = [toThrow, toThrow.stack]; } err(`exiting due to exception: ${toLog}`); } quit(status); }); throw toThrow; }; } if (typeof print != 'undefined') { // Prefer to use print/printErr where they exist, as they usually work better. if (typeof console == 'undefined') console = /** @type{!Console} */({}); console.log = /** @type{!function(this:Console, ...*): undefined} */ (print); console.warn = console.error = /** @type{!function(this:Console, ...*): undefined} */ (typeof printErr != 'undefined' ? printErr : print); } } else // Note that this includes Node.js workers when relevant (pthreads is enabled). // Node.js workers are detected as a combination of ENVIRONMENT_IS_WORKER and // ENVIRONMENT_IS_NODE. { throw new Error('environment detection error'); } var out = Module['print'] || console.log.bind(console); var err = Module['printErr'] || console.error.bind(console); // Merge back in the overrides Object.assign(Module, moduleOverrides); // Free the object hierarchy contained in the overrides, this lets the GC // reclaim data used e.g. in memoryInitializerRequest, which is a large typed array. moduleOverrides = null; checkIncomingModuleAPI(); // Emit code to handle expected values on the Module object. This applies Module.x // to the proper local x. This has two benefits: first, we only emit it if it is // expected to arrive, and second, by using a local everywhere else that can be // minified. if (Module['arguments']) arguments_ = Module['arguments'];legacyModuleProp('arguments', 'arguments_'); if (Module['thisProgram']) thisProgram = Module['thisProgram'];legacyModuleProp('thisProgram', 'thisProgram'); if (Module['quit']) quit_ = Module['quit'];legacyModuleProp('quit', 'quit_'); // perform assertions in shell.js after we set up out() and err(), as otherwise if an assertion fails it cannot print the message // Assertions on removed incoming Module JS APIs. assert(typeof Module['memoryInitializerPrefixURL'] == 'undefined', 'Module.memoryInitializerPrefixURL option was removed, use Module.locateFile instead'); assert(typeof Module['pthreadMainPrefixURL'] == 'undefined', 'Module.pthreadMainPrefixURL option was removed, use Module.locateFile instead'); assert(typeof Module['cdInitializerPrefixURL'] == 'undefined', 'Module.cdInitializerPrefixURL option was removed, use Module.locateFile instead'); assert(typeof Module['filePackagePrefixURL'] == 'undefined', 'Module.filePackagePrefixURL option was removed, use Module.locateFile instead'); assert(typeof Module['read'] == 'undefined', 'Module.read option was removed (modify read_ in JS)'); assert(typeof Module['readAsync'] == 'undefined', 'Module.readAsync option was removed (modify readAsync in JS)'); assert(typeof Module['readBinary'] == 'undefined', 'Module.readBinary option was removed (modify readBinary in JS)'); assert(typeof Module['setWindowTitle'] == 'undefined', 'Module.setWindowTitle option was removed (modify emscripten_set_window_title in JS)'); assert(typeof Module['TOTAL_MEMORY'] == 'undefined', 'Module.TOTAL_MEMORY has been renamed Module.INITIAL_MEMORY'); legacyModuleProp('asm', 'wasmExports'); legacyModuleProp('read', 'read_'); legacyModuleProp('readAsync', 'readAsync'); legacyModuleProp('readBinary', 'readBinary'); legacyModuleProp('setWindowTitle', 'setWindowTitle'); var IDBFS = 'IDBFS is no longer included by default; build with -lidbfs.js'; var PROXYFS = 'PROXYFS is no longer included by default; build with -lproxyfs.js'; var WORKERFS = 'WORKERFS is no longer included by default; build with -lworkerfs.js'; var FETCHFS = 'FETCHFS is no longer included by default; build with -lfetchfs.js'; var ICASEFS = 'ICASEFS is no longer included by default; build with -licasefs.js'; var JSFILEFS = 'JSFILEFS is no longer included by default; build with -ljsfilefs.js'; var OPFS = 'OPFS is no longer included by default; build with -lopfs.js'; var NODEFS = 'NODEFS is no longer included by default; build with -lnodefs.js'; assert(!ENVIRONMENT_IS_WEB, "web environment detected but not enabled at build time. Add 'web' to `-sENVIRONMENT` to enable."); assert(!ENVIRONMENT_IS_WORKER, "worker environment detected but not enabled at build time. Add 'worker' to `-sENVIRONMENT` to enable."); assert(!ENVIRONMENT_IS_SHELL, "shell environment detected but not enabled at build time. Add 'shell' to `-sENVIRONMENT` to enable."); // end include: shell.js // include: preamble.js // === Preamble library stuff === // Documentation for the public APIs defined in this file must be updated in: // site/source/docs/api_reference/preamble.js.rst // A prebuilt local version of the documentation is available at: // site/build/text/docs/api_reference/preamble.js.txt // You can also build docs locally as HTML or other formats in site/ // An online HTML version (which may be of a different version of Emscripten) // is up at http://kripken.github.io/emscripten-site/docs/api_reference/preamble.js.html var wasmBinary; if (Module['wasmBinary']) wasmBinary = Module['wasmBinary'];legacyModuleProp('wasmBinary', 'wasmBinary'); var noExitRuntime = Module['noExitRuntime'] || true;legacyModuleProp('noExitRuntime', 'noExitRuntime'); if (typeof WebAssembly != 'object') { abort('no native wasm support detected'); } // Wasm globals var wasmMemory; //======================================== // Runtime essentials //======================================== // whether we are quitting the application. no code should run after this. // set in exit() and abort() var ABORT = false; // set by exit() and abort(). Passed to 'onExit' handler. // NOTE: This is also used as the process return code code in shell environments // but only when noExitRuntime is false. var EXITSTATUS; /** @type {function(*, string=)} */ function assert(condition, text) { if (!condition) { abort('Assertion failed' + (text ? ': ' + text : '')); } } // We used to include malloc/free by default in the past. Show a helpful error in // builds with assertions. // Memory management var HEAP, /** @type {!Int8Array} */ HEAP8, /** @type {!Uint8Array} */ HEAPU8, /** @type {!Int16Array} */ HEAP16, /** @type {!Uint16Array} */ HEAPU16, /** @type {!Int32Array} */ HEAP32, /** @type {!Uint32Array} */ HEAPU32, /** @type {!Float32Array} */ HEAPF32, /** @type {!Float64Array} */ HEAPF64; function updateMemoryViews() { var b = wasmMemory.buffer; Module['HEAP8'] = HEAP8 = new Int8Array(b); Module['HEAP16'] = HEAP16 = new Int16Array(b); Module['HEAPU8'] = HEAPU8 = new Uint8Array(b); Module['HEAPU16'] = HEAPU16 = new Uint16Array(b); Module['HEAP32'] = HEAP32 = new Int32Array(b); Module['HEAPU32'] = HEAPU32 = new Uint32Array(b); Module['HEAPF32'] = HEAPF32 = new Float32Array(b); Module['HEAPF64'] = HEAPF64 = new Float64Array(b); } assert(!Module['STACK_SIZE'], 'STACK_SIZE can no longer be set at runtime. Use -sSTACK_SIZE at link time') assert(typeof Int32Array != 'undefined' && typeof Float64Array !== 'undefined' && Int32Array.prototype.subarray != undefined && Int32Array.prototype.set != undefined, 'JS engine does not provide full typed array support'); // If memory is defined in wasm, the user can't provide it, or set INITIAL_MEMORY assert(!Module['wasmMemory'], 'Use of `wasmMemory` detected. Use -sIMPORTED_MEMORY to define wasmMemory externally'); assert(!Module['INITIAL_MEMORY'], 'Detected runtime INITIAL_MEMORY setting. Use -sIMPORTED_MEMORY to define wasmMemory dynamically'); // include: runtime_stack_check.js // Initializes the stack cookie. Called at the startup of main and at the startup of each thread in pthreads mode. function writeStackCookie() { var max = _emscripten_stack_get_end(); assert((max & 3) == 0); // If the stack ends at address zero we write our cookies 4 bytes into the // stack. This prevents interference with SAFE_HEAP and ASAN which also // monitor writes to address zero. if (max == 0) { max += 4; } // The stack grow downwards towards _emscripten_stack_get_end. // We write cookies to the final two words in the stack and detect if they are // ever overwritten. HEAPU32[((max)>>2)] = 0x02135467; HEAPU32[(((max)+(4))>>2)] = 0x89BACDFE; // Also test the global address 0 for integrity. HEAPU32[((0)>>2)] = 1668509029; } function checkStackCookie() { if (ABORT) return; var max = _emscripten_stack_get_end(); // See writeStackCookie(). if (max == 0) { max += 4; } var cookie1 = HEAPU32[((max)>>2)]; var cookie2 = HEAPU32[(((max)+(4))>>2)]; if (cookie1 != 0x02135467 || cookie2 != 0x89BACDFE) { abort(`Stack overflow! Stack cookie has been overwritten at ${ptrToString(max)}, expected hex dwords 0x89BACDFE and 0x2135467, but received ${ptrToString(cookie2)} ${ptrToString(cookie1)}`); } // Also test the global address 0 for integrity. if (HEAPU32[((0)>>2)] != 0x63736d65 /* 'emsc' */) { abort('Runtime error: The application has corrupted its heap memory area (address zero)!'); } } // end include: runtime_stack_check.js // include: runtime_assertions.js // Endianness check (function() { var h16 = new Int16Array(1); var h8 = new Int8Array(h16.buffer); h16[0] = 0x6373; if (h8[0] !== 0x73 || h8[1] !== 0x63) throw 'Runtime error: expected the system to be little-endian! (Run with -sSUPPORT_BIG_ENDIAN to bypass)'; })(); // end include: runtime_assertions.js var __ATPRERUN__ = []; // functions called before the runtime is initialized var __ATINIT__ = []; // functions called during startup var __ATEXIT__ = []; // functions called during shutdown var __ATPOSTRUN__ = []; // functions called after the main() is called var runtimeInitialized = false; var runtimeKeepaliveCounter = 0; function keepRuntimeAlive() { return noExitRuntime || runtimeKeepaliveCounter > 0; } function preRun() { if (Module['preRun']) { if (typeof Module['preRun'] == 'function') Module['preRun'] = [Module['preRun']]; while (Module['preRun'].length) { addOnPreRun(Module['preRun'].shift()); } } callRuntimeCallbacks(__ATPRERUN__); } function initRuntime() { assert(!runtimeInitialized); runtimeInitialized = true; checkStackCookie(); if (!Module["noFSInit"] && !FS.init.initialized) FS.init(); FS.ignorePermissions = false; TTY.init(); SOCKFS.root = FS.mount(SOCKFS, {}, null); PIPEFS.root = FS.mount(PIPEFS, {}, null); callRuntimeCallbacks(__ATINIT__); } function postRun() { checkStackCookie(); if (Module['postRun']) { if (typeof Module['postRun'] == 'function') Module['postRun'] = [Module['postRun']]; while (Module['postRun'].length) { addOnPostRun(Module['postRun'].shift()); } } callRuntimeCallbacks(__ATPOSTRUN__); } function addOnPreRun(cb) { __ATPRERUN__.unshift(cb); } function addOnInit(cb) { __ATINIT__.unshift(cb); } function addOnExit(cb) { } function addOnPostRun(cb) { __ATPOSTRUN__.unshift(cb); } // include: runtime_math.js // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/imul // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/fround // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/clz32 // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/trunc assert(Math.imul, 'This browser does not support Math.imul(), build with LEGACY_VM_SUPPORT or POLYFILL_OLD_MATH_FUNCTIONS to add in a polyfill'); assert(Math.fround, 'This browser does not support Math.fround(), build with LEGACY_VM_SUPPORT or POLYFILL_OLD_MATH_FUNCTIONS to add in a polyfill'); assert(Math.clz32, 'This browser does not support Math.clz32(), build with LEGACY_VM_SUPPORT or POLYFILL_OLD_MATH_FUNCTIONS to add in a polyfill'); assert(Math.trunc, 'This browser does not support Math.trunc(), build with LEGACY_VM_SUPPORT or POLYFILL_OLD_MATH_FUNCTIONS to add in a polyfill'); // end include: runtime_math.js // A counter of dependencies for calling run(). If we need to // do asynchronous work before running, increment this and // decrement it. Incrementing must happen in a place like // Module.preRun (used by emcc to add file preloading). // Note that you can add dependencies in preRun, even though // it happens right before run - run will be postponed until // the dependencies are met. var runDependencies = 0; var runDependencyWatcher = null; var dependenciesFulfilled = null; // overridden to take different actions when all run dependencies are fulfilled var runDependencyTracking = {}; function getUniqueRunDependency(id) { var orig = id; while (1) { if (!runDependencyTracking[id]) return id; id = orig + Math.random(); } } function addRunDependency(id) { runDependencies++; if (Module['monitorRunDependencies']) { Module['monitorRunDependencies'](runDependencies); } if (id) { assert(!runDependencyTracking[id]); runDependencyTracking[id] = 1; if (runDependencyWatcher === null && typeof setInterval != 'undefined') { // Check for missing dependencies every few seconds runDependencyWatcher = setInterval(() => { if (ABORT) { clearInterval(runDependencyWatcher); runDependencyWatcher = null; return; } var shown = false; for (var dep in runDependencyTracking) { if (!shown) { shown = true; err('still waiting on run dependencies:'); } err(`dependency: ${dep}`); } if (shown) { err('(end of list)'); } }, 10000); } } else { err('warning: run dependency added without ID'); } } function removeRunDependency(id) { runDependencies--; if (Module['monitorRunDependencies']) { Module['monitorRunDependencies'](runDependencies); } if (id) { assert(runDependencyTracking[id]); delete runDependencyTracking[id]; } else { err('warning: run dependency removed without ID'); } if (runDependencies == 0) { if (runDependencyWatcher !== null) { clearInterval(runDependencyWatcher); runDependencyWatcher = null; } if (dependenciesFulfilled) { var callback = dependenciesFulfilled; dependenciesFulfilled = null; callback(); // can add another dependenciesFulfilled } } } /** @param {string|number=} what */ function abort(what) { if (Module['onAbort']) { Module['onAbort'](what); } what = 'Aborted(' + what + ')'; // TODO(sbc): Should we remove printing and leave it up to whoever // catches the exception? err(what); ABORT = true; EXITSTATUS = 1; // Use a wasm runtime error, because a JS error might be seen as a foreign // exception, which means we'd run destructors on it. We need the error to // simply make the program stop. // FIXME This approach does not work in Wasm EH because it currently does not assume // all RuntimeErrors are from traps; it decides whether a RuntimeError is from // a trap or not based on a hidden field within the object. So at the moment // we don't have a way of throwing a wasm trap from JS. TODO Make a JS API that // allows this in the wasm spec. // Suppress closure compiler warning here. Closure compiler's builtin extern // defintion for WebAssembly.RuntimeError claims it takes no arguments even // though it can. // TODO(https://github.com/google/closure-compiler/pull/3913): Remove if/when upstream closure gets fixed. /** @suppress {checkTypes} */ var e = new WebAssembly.RuntimeError(what); readyPromiseReject(e); // Throw the error whether or not MODULARIZE is set because abort is used // in code paths apart from instantiation where an exception is expected // to be thrown when abort is called. throw e; } // include: memoryprofiler.js // end include: memoryprofiler.js // include: URIUtils.js // Prefix of data URIs emitted by SINGLE_FILE and related options. var dataURIPrefix = 'data:application/octet-stream;base64,'; // Indicates whether filename is a base64 data URI. function isDataURI(filename) { // Prefix of data URIs emitted by SINGLE_FILE and related options. return filename.startsWith(dataURIPrefix); } // Indicates whether filename is delivered via file protocol (as opposed to http/https) function isFileURI(filename) { return filename.startsWith('file://'); } // end include: URIUtils.js function createExportWrapper(name) { return function() { assert(runtimeInitialized, `native function \`${name}\` called before runtime initialization`); var f = wasmExports[name]; assert(f, `exported native function \`${name}\` not found`); return f.apply(null, arguments); }; } // include: runtime_exceptions.js // end include: runtime_exceptions.js var wasmBinaryFile; if (Module['locateFile']) { wasmBinaryFile = 'php-wasm.wasm'; if (!isDataURI(wasmBinaryFile)) { wasmBinaryFile = locateFile(wasmBinaryFile); } } else { // Use bundler-friendly `new URL(..., import.meta.url)` pattern; works in browsers too. wasmBinaryFile = new URL('php-wasm.wasm', import.meta.url).href; } function getBinarySync(file) { if (file == wasmBinaryFile && wasmBinary) { return new Uint8Array(wasmBinary); } if (readBinary) { return readBinary(file); } throw "both async and sync fetching of the wasm failed"; } function getBinaryPromise(binaryFile) { // If we don't have the binary yet, try to load it asynchronously. // Fetch has some additional restrictions over XHR, like it can't be used on a file:// url. // See https://github.com/github/fetch/pull/92#issuecomment-140665932 // Cordova or Electron apps are typically loaded from a file:// url. // So use fetch if it is available and the url is not a file, otherwise fall back to XHR. if (!wasmBinary && (ENVIRONMENT_IS_WEB || ENVIRONMENT_IS_WORKER)) { if (typeof fetch == 'function' ) { return fetch(binaryFile, { credentials: 'same-origin' }).then((response) => { if (!response['ok']) { throw "failed to load wasm binary file at '" + binaryFile + "'"; } return response['arrayBuffer'](); }).catch(() => getBinarySync(binaryFile)); } } // Otherwise, getBinarySync should be able to get it synchronously return Promise.resolve().then(() => getBinarySync(binaryFile)); } function instantiateArrayBuffer(binaryFile, imports, receiver) { return getBinaryPromise(binaryFile).then((binary) => { return WebAssembly.instantiate(binary, imports); }).then((instance) => { return instance; }).then(receiver, (reason) => { err(`failed to asynchronously prepare wasm: ${reason}`); // Warn on some common problems. if (isFileURI(wasmBinaryFile)) { err(`warning: Loading from a file URI (${wasmBinaryFile}) is not supported in most browsers. See https://emscripten.org/docs/getting_started/FAQ.html#how-do-i-run-a-local-webserver-for-testing-why-does-my-program-stall-in-downloading-or-preparing`); } abort(reason); }); } function instantiateAsync(binary, binaryFile, imports, callback) { if (!binary && typeof WebAssembly.instantiateStreaming == 'function' && !isDataURI(binaryFile) && // Avoid instantiateStreaming() on Node.js environment for now, as while // Node.js v18.1.0 implements it, it does not have a full fetch() // implementation yet. // // Reference: // https://github.com/emscripten-core/emscripten/pull/16917 !ENVIRONMENT_IS_NODE && typeof fetch == 'function') { return fetch(binaryFile, { credentials: 'same-origin' }).then((response) => { // Suppress closure warning here since the upstream definition for // instantiateStreaming only allows Promise rather than // an actual Response. // TODO(https://github.com/google/closure-compiler/pull/3913): Remove if/when upstream closure is fixed. /** @suppress {checkTypes} */ var result = WebAssembly.instantiateStreaming(response, imports); return result.then( callback, function(reason) { // We expect the most common failure cause to be a bad MIME type for the binary, // in which case falling back to ArrayBuffer instantiation should work. err(`wasm streaming compile failed: ${reason}`); err('falling back to ArrayBuffer instantiation'); return instantiateArrayBuffer(binaryFile, imports, callback); }); }); } return instantiateArrayBuffer(binaryFile, imports, callback); } // Create the wasm instance. // Receives the wasm imports, returns the exports. function createWasm() { // prepare imports var info = { 'env': wasmImports, 'wasi_snapshot_preview1': wasmImports, }; // Load the wasm module and create an instance of using native support in the JS engine. // handle a generated wasm instance, receiving its exports and // performing other necessary setup /** @param {WebAssembly.Module=} module*/ function receiveInstance(instance, module) { wasmExports = instance.exports; wasmMemory = wasmExports['memory']; assert(wasmMemory, "memory not found in wasm exports"); // This assertion doesn't hold when emscripten is run in --post-link // mode. // TODO(sbc): Read INITIAL_MEMORY out of the wasm file in post-link mode. //assert(wasmMemory.buffer.byteLength === 16777216); updateMemoryViews(); wasmTable = wasmExports['__indirect_function_table']; assert(wasmTable, "table not found in wasm exports"); addOnInit(wasmExports['__wasm_call_ctors']); removeRunDependency('wasm-instantiate'); return wasmExports; } // wait for the pthread pool (if any) addRunDependency('wasm-instantiate'); // Prefer streaming instantiation if available. // Async compilation can be confusing when an error on the page overwrites Module // (for example, if the order of elements is wrong, and the one defining Module is // later), so we save Module and check it later. var trueModule = Module; function receiveInstantiationResult(result) { // 'result' is a ResultObject object which has both the module and instance. // receiveInstance() will swap in the exports (to Module.asm) so they can be called assert(Module === trueModule, 'the Module object should not be replaced during async compilation - perhaps the order of HTML elements is wrong?'); trueModule = null; // TODO: Due to Closure regression https://github.com/google/closure-compiler/issues/3193, the above line no longer optimizes out down to the following line. // When the regression is fixed, can restore the above PTHREADS-enabled path. receiveInstance(result['instance']); } // User shell pages can write their own Module.instantiateWasm = function(imports, successCallback) callback // to manually instantiate the Wasm module themselves. This allows pages to // run the instantiation parallel to any other async startup actions they are // performing. // Also pthreads and wasm workers initialize the wasm instance through this // path. if (Module['instantiateWasm']) { try { return Module['instantiateWasm'](info, receiveInstance); } catch(e) { err(`Module.instantiateWasm callback failed with error: ${e}`); // If instantiation fails, reject the module ready promise. readyPromiseReject(e); } } // If instantiation fails, reject the module ready promise. instantiateAsync(wasmBinary, wasmBinaryFile, info, receiveInstantiationResult).catch(readyPromiseReject); return {}; // no exports yet; we'll fill them in later } // Globals used by JS i64 conversions (see makeSetValue) var tempDouble; var tempI64; // include: runtime_debug.js function legacyModuleProp(prop, newName, incomming=true) { if (!Object.getOwnPropertyDescriptor(Module, prop)) { Object.defineProperty(Module, prop, { configurable: true, get() { let extra = incomming ? ' (the initial value can be provided on Module, but after startup the value is only looked for on a local variable of that name)' : ''; abort(`\`Module.${prop}\` has been replaced by \`${newName}\`` + extra); } }); } } function ignoredModuleProp(prop) { if (Object.getOwnPropertyDescriptor(Module, prop)) { abort(`\`Module.${prop}\` was supplied but \`${prop}\` not included in INCOMING_MODULE_JS_API`); } } // forcing the filesystem exports a few things by default function isExportedByForceFilesystem(name) { return name === 'FS_createPath' || name === 'FS_createDataFile' || name === 'FS_createPreloadedFile' || name === 'FS_unlink' || name === 'addRunDependency' || // The old FS has some functionality that WasmFS lacks. name === 'FS_createLazyFile' || name === 'FS_createDevice' || name === 'removeRunDependency'; } function missingGlobal(sym, msg) { if (typeof globalThis !== 'undefined') { Object.defineProperty(globalThis, sym, { configurable: true, get() { warnOnce('`' + sym + '` is not longer defined by emscripten. ' + msg); return undefined; } }); } } missingGlobal('buffer', 'Please use HEAP8.buffer or wasmMemory.buffer'); missingGlobal('asm', 'Please use wasmExports instead'); function missingLibrarySymbol(sym) { if (typeof globalThis !== 'undefined' && !Object.getOwnPropertyDescriptor(globalThis, sym)) { Object.defineProperty(globalThis, sym, { configurable: true, get() { // Can't `abort()` here because it would break code that does runtime // checks. e.g. `if (typeof SDL === 'undefined')`. var msg = '`' + sym + '` is a library symbol and not included by default; add it to your library.js __deps or to DEFAULT_LIBRARY_FUNCS_TO_INCLUDE on the command line'; // DEFAULT_LIBRARY_FUNCS_TO_INCLUDE requires the name as it appears in // library.js, which means $name for a JS name with no prefix, or name // for a JS name like _name. var librarySymbol = sym; if (!librarySymbol.startsWith('_')) { librarySymbol = '$' + sym; } msg += " (e.g. -sDEFAULT_LIBRARY_FUNCS_TO_INCLUDE='" + librarySymbol + "')"; if (isExportedByForceFilesystem(sym)) { msg += '. Alternatively, forcing filesystem support (-sFORCE_FILESYSTEM) can export this for you'; } warnOnce(msg); return undefined; } }); } // Any symbol that is not included from the JS libary is also (by definition) // not exported on the Module object. unexportedRuntimeSymbol(sym); } function unexportedRuntimeSymbol(sym) { if (!Object.getOwnPropertyDescriptor(Module, sym)) { Object.defineProperty(Module, sym, { configurable: true, get() { var msg = "'" + sym + "' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the Emscripten FAQ)"; if (isExportedByForceFilesystem(sym)) { msg += '. Alternatively, forcing filesystem support (-sFORCE_FILESYSTEM) can export this for you'; } abort(msg); } }); } } // Used by XXXXX_DEBUG settings to output debug messages. function dbg(text) { // TODO(sbc): Make this configurable somehow. Its not always convenient for // logging to show up as warnings. console.warn.apply(console, arguments); } // end include: runtime_debug.js // === Body === // end include: preamble.js /** @constructor */ function ExitStatus(status) { this.name = 'ExitStatus'; this.message = `Program terminated with exit(${status})`; this.status = status; } var callRuntimeCallbacks = (callbacks) => { while (callbacks.length > 0) { // Pass the module as the first argument. callbacks.shift()(Module); } }; /** * @param {number} ptr * @param {string} type */ function getValue(ptr, type = 'i8') { if (type.endsWith('*')) type = '*'; switch (type) { case 'i1': return HEAP8[((ptr)>>0)]; case 'i8': return HEAP8[((ptr)>>0)]; case 'i16': return HEAP16[((ptr)>>1)]; case 'i32': return HEAP32[((ptr)>>2)]; case 'i64': abort('to do getValue(i64) use WASM_BIGINT'); case 'float': return HEAPF32[((ptr)>>2)]; case 'double': return HEAPF64[((ptr)>>3)]; case '*': return HEAPU32[((ptr)>>2)]; default: abort(`invalid type for getValue: ${type}`); } } var ptrToString = (ptr) => { assert(typeof ptr === 'number'); // With CAN_ADDRESS_2GB or MEMORY64, pointers are already unsigned. ptr >>>= 0; return '0x' + ptr.toString(16).padStart(8, '0'); }; /** * @param {number} ptr * @param {number} value * @param {string} type */ function setValue(ptr, value, type = 'i8') { if (type.endsWith('*')) type = '*'; switch (type) { case 'i1': HEAP8[((ptr)>>0)] = value; break; case 'i8': HEAP8[((ptr)>>0)] = value; break; case 'i16': HEAP16[((ptr)>>1)] = value; break; case 'i32': HEAP32[((ptr)>>2)] = value; break; case 'i64': abort('to do setValue(i64) use WASM_BIGINT'); case 'float': HEAPF32[((ptr)>>2)] = value; break; case 'double': HEAPF64[((ptr)>>3)] = value; break; case '*': HEAPU32[((ptr)>>2)] = value; break; default: abort(`invalid type for setValue: ${type}`); } } var warnOnce = (text) => { if (!warnOnce.shown) warnOnce.shown = {}; if (!warnOnce.shown[text]) { warnOnce.shown[text] = 1; if (ENVIRONMENT_IS_NODE) text = 'warning: ' + text; err(text); } }; var UTF8Decoder = typeof TextDecoder != 'undefined' ? new TextDecoder('utf8') : undefined; /** * Given a pointer 'idx' to a null-terminated UTF8-encoded string in the given * array that contains uint8 values, returns a copy of that string as a * Javascript String object. * heapOrArray is either a regular array, or a JavaScript typed array view. * @param {number} idx * @param {number=} maxBytesToRead * @return {string} */ var UTF8ArrayToString = (heapOrArray, idx, maxBytesToRead) => { var endIdx = idx + maxBytesToRead; var endPtr = idx; // TextDecoder needs to know the byte length in advance, it doesn't stop on // null terminator by itself. Also, use the length info to avoid running tiny // strings through TextDecoder, since .subarray() allocates garbage. // (As a tiny code save trick, compare endPtr against endIdx using a negation, // so that undefined means Infinity) while (heapOrArray[endPtr] && !(endPtr >= endIdx)) ++endPtr; if (endPtr - idx > 16 && heapOrArray.buffer && UTF8Decoder) { return UTF8Decoder.decode(heapOrArray.subarray(idx, endPtr)); } var str = ''; // If building with TextDecoder, we have already computed the string length // above, so test loop end condition against that while (idx < endPtr) { // For UTF8 byte structure, see: // http://en.wikipedia.org/wiki/UTF-8#Description // https://www.ietf.org/rfc/rfc2279.txt // https://tools.ietf.org/html/rfc3629 var u0 = heapOrArray[idx++]; if (!(u0 & 0x80)) { str += String.fromCharCode(u0); continue; } var u1 = heapOrArray[idx++] & 63; if ((u0 & 0xE0) == 0xC0) { str += String.fromCharCode(((u0 & 31) << 6) | u1); continue; } var u2 = heapOrArray[idx++] & 63; if ((u0 & 0xF0) == 0xE0) { u0 = ((u0 & 15) << 12) | (u1 << 6) | u2; } else { if ((u0 & 0xF8) != 0xF0) warnOnce('Invalid UTF-8 leading byte ' + ptrToString(u0) + ' encountered when deserializing a UTF-8 string in wasm memory to a JS string!'); u0 = ((u0 & 7) << 18) | (u1 << 12) | (u2 << 6) | (heapOrArray[idx++] & 63); } if (u0 < 0x10000) { str += String.fromCharCode(u0); } else { var ch = u0 - 0x10000; str += String.fromCharCode(0xD800 | (ch >> 10), 0xDC00 | (ch & 0x3FF)); } } return str; }; /** * Given a pointer 'ptr' to a null-terminated UTF8-encoded string in the * emscripten HEAP, returns a copy of that string as a Javascript String object. * * @param {number} ptr * @param {number=} maxBytesToRead - An optional length that specifies the * maximum number of bytes to read. You can omit this parameter to scan the * string until the first 0 byte. If maxBytesToRead is passed, and the string * at [ptr, ptr+maxBytesToReadr[ contains a null byte in the middle, then the * string will cut short at that byte index (i.e. maxBytesToRead will not * produce a string of exact length [ptr, ptr+maxBytesToRead[) N.B. mixing * frequent uses of UTF8ToString() with and without maxBytesToRead may throw * JS JIT optimizations off, so it is worth to consider consistently using one * @return {string} */ var UTF8ToString = (ptr, maxBytesToRead) => { assert(typeof ptr == 'number'); return ptr ? UTF8ArrayToString(HEAPU8, ptr, maxBytesToRead) : ''; }; var ___assert_fail = (condition, filename, line, func) => { abort(`Assertion failed: ${UTF8ToString(condition)}, at: ` + [filename ? UTF8ToString(filename) : 'unknown filename', line, func ? UTF8ToString(func) : 'unknown function']); }; var wasmTableMirror = []; var wasmTable; var getWasmTableEntry = (funcPtr) => { var func = wasmTableMirror[funcPtr]; if (!func) { if (funcPtr >= wasmTableMirror.length) wasmTableMirror.length = funcPtr + 1; wasmTableMirror[funcPtr] = func = wasmTable.get(funcPtr); } assert(wasmTable.get(funcPtr) == func, "JavaScript-side Wasm function table mirror is out of date!"); return func; }; var ___call_sighandler = (fp, sig) => getWasmTableEntry(fp)(sig); var PATH = { isAbs:(path) => path.charAt(0) === '/', splitPath:(filename) => { var splitPathRe = /^(\/?|)([\s\S]*?)((?:\.{1,2}|[^\/]+?|)(\.[^.\/]*|))(?:[\/]*)$/; return splitPathRe.exec(filename).slice(1); }, normalizeArray:(parts, allowAboveRoot) => { // if the path tries to go above the root, `up` ends up > 0 var up = 0; for (var i = parts.length - 1; i >= 0; i--) { var last = parts[i]; if (last === '.') { parts.splice(i, 1); } else if (last === '..') { parts.splice(i, 1); up++; } else if (up) { parts.splice(i, 1); up--; } } // if the path is allowed to go above the root, restore leading ..s if (allowAboveRoot) { for (; up; up--) { parts.unshift('..'); } } return parts; }, normalize:(path) => { var isAbsolute = PATH.isAbs(path), trailingSlash = path.substr(-1) === '/'; // Normalize the path path = PATH.normalizeArray(path.split('/').filter((p) => !!p), !isAbsolute).join('/'); if (!path && !isAbsolute) { path = '.'; } if (path && trailingSlash) { path += '/'; } return (isAbsolute ? '/' : '') + path; }, dirname:(path) => { var result = PATH.splitPath(path), root = result[0], dir = result[1]; if (!root && !dir) { // No dirname whatsoever return '.'; } if (dir) { // It has a dirname, strip trailing slash dir = dir.substr(0, dir.length - 1); } return root + dir; }, basename:(path) => { // EMSCRIPTEN return '/'' for '/', not an empty string if (path === '/') return '/'; path = PATH.normalize(path); path = path.replace(/\/$/, ""); var lastSlash = path.lastIndexOf('/'); if (lastSlash === -1) return path; return path.substr(lastSlash+1); }, join:function() { var paths = Array.prototype.slice.call(arguments); return PATH.normalize(paths.join('/')); }, join2:(l, r) => { return PATH.normalize(l + '/' + r); }, }; var initRandomFill = () => { if (typeof crypto == 'object' && typeof crypto['getRandomValues'] == 'function') { // for modern web browsers return (view) => crypto.getRandomValues(view); } else if (ENVIRONMENT_IS_NODE) { // for nodejs with or without crypto support included try { var crypto_module = require('crypto'); var randomFillSync = crypto_module['randomFillSync']; if (randomFillSync) { // nodejs with LTS crypto support return (view) => crypto_module['randomFillSync'](view); } // very old nodejs with the original crypto API var randomBytes = crypto_module['randomBytes']; return (view) => ( view.set(randomBytes(view.byteLength)), // Return the original view to match modern native implementations. view ); } catch (e) { // nodejs doesn't have crypto support } } // we couldn't find a proper implementation, as Math.random() is not suitable for /dev/random, see emscripten-core/emscripten/pull/7096 abort("no cryptographic support found for randomDevice. consider polyfilling it if you want to use something insecure like Math.random(), e.g. put this in a --pre-js: var crypto = { getRandomValues: (array) => { for (var i = 0; i < array.length; i++) array[i] = (Math.random()*256)|0 } };"); }; var randomFill = (view) => { // Lazily init on the first invocation. return (randomFill = initRandomFill())(view); }; var PATH_FS = { resolve:function() { var resolvedPath = '', resolvedAbsolute = false; for (var i = arguments.length - 1; i >= -1 && !resolvedAbsolute; i--) { var path = (i >= 0) ? arguments[i] : FS.cwd(); // Skip empty and invalid entries if (typeof path != 'string') { throw new TypeError('Arguments to path.resolve must be strings'); } else if (!path) { return ''; // an invalid portion invalidates the whole thing } resolvedPath = path + '/' + resolvedPath; resolvedAbsolute = PATH.isAbs(path); } // At this point the path should be resolved to a full absolute path, but // handle relative paths to be safe (might happen when process.cwd() fails) resolvedPath = PATH.normalizeArray(resolvedPath.split('/').filter((p) => !!p), !resolvedAbsolute).join('/'); return ((resolvedAbsolute ? '/' : '') + resolvedPath) || '.'; }, relative:(from, to) => { from = PATH_FS.resolve(from).substr(1); to = PATH_FS.resolve(to).substr(1); function trim(arr) { var start = 0; for (; start < arr.length; start++) { if (arr[start] !== '') break; } var end = arr.length - 1; for (; end >= 0; end--) { if (arr[end] !== '') break; } if (start > end) return []; return arr.slice(start, end - start + 1); } var fromParts = trim(from.split('/')); var toParts = trim(to.split('/')); var length = Math.min(fromParts.length, toParts.length); var samePartsLength = length; for (var i = 0; i < length; i++) { if (fromParts[i] !== toParts[i]) { samePartsLength = i; break; } } var outputParts = []; for (var i = samePartsLength; i < fromParts.length; i++) { outputParts.push('..'); } outputParts = outputParts.concat(toParts.slice(samePartsLength)); return outputParts.join('/'); }, }; var FS_stdin_getChar_buffer = []; var lengthBytesUTF8 = (str) => { var len = 0; for (var i = 0; i < str.length; ++i) { // Gotcha: charCodeAt returns a 16-bit word that is a UTF-16 encoded code // unit, not a Unicode code point of the character! So decode // UTF16->UTF32->UTF8. // See http://unicode.org/faq/utf_bom.html#utf16-3 var c = str.charCodeAt(i); // possibly a lead surrogate if (c <= 0x7F) { len++; } else if (c <= 0x7FF) { len += 2; } else if (c >= 0xD800 && c <= 0xDFFF) { len += 4; ++i; } else { len += 3; } } return len; }; var stringToUTF8Array = (str, heap, outIdx, maxBytesToWrite) => { assert(typeof str === 'string'); // Parameter maxBytesToWrite is not optional. Negative values, 0, null, // undefined and false each don't write out any bytes. if (!(maxBytesToWrite > 0)) return 0; var startIdx = outIdx; var endIdx = outIdx + maxBytesToWrite - 1; // -1 for string null terminator. for (var i = 0; i < str.length; ++i) { // Gotcha: charCodeAt returns a 16-bit word that is a UTF-16 encoded code // unit, not a Unicode code point of the character! So decode // UTF16->UTF32->UTF8. // See http://unicode.org/faq/utf_bom.html#utf16-3 // For UTF8 byte structure, see http://en.wikipedia.org/wiki/UTF-8#Description // and https://www.ietf.org/rfc/rfc2279.txt // and https://tools.ietf.org/html/rfc3629 var u = str.charCodeAt(i); // possibly a lead surrogate if (u >= 0xD800 && u <= 0xDFFF) { var u1 = str.charCodeAt(++i); u = 0x10000 + ((u & 0x3FF) << 10) | (u1 & 0x3FF); } if (u <= 0x7F) { if (outIdx >= endIdx) break; heap[outIdx++] = u; } else if (u <= 0x7FF) { if (outIdx + 1 >= endIdx) break; heap[outIdx++] = 0xC0 | (u >> 6); heap[outIdx++] = 0x80 | (u & 63); } else if (u <= 0xFFFF) { if (outIdx + 2 >= endIdx) break; heap[outIdx++] = 0xE0 | (u >> 12); heap[outIdx++] = 0x80 | ((u >> 6) & 63); heap[outIdx++] = 0x80 | (u & 63); } else { if (outIdx + 3 >= endIdx) break; if (u > 0x10FFFF) warnOnce('Invalid Unicode code point ' + ptrToString(u) + ' encountered when serializing a JS string to a UTF-8 string in wasm memory! (Valid unicode code points should be in range 0-0x10FFFF).'); heap[outIdx++] = 0xF0 | (u >> 18); heap[outIdx++] = 0x80 | ((u >> 12) & 63); heap[outIdx++] = 0x80 | ((u >> 6) & 63); heap[outIdx++] = 0x80 | (u & 63); } } // Null-terminate the pointer to the buffer. heap[outIdx] = 0; return outIdx - startIdx; }; /** @type {function(string, boolean=, number=)} */ function intArrayFromString(stringy, dontAddNull, length) { var len = length > 0 ? length : lengthBytesUTF8(stringy)+1; var u8array = new Array(len); var numBytesWritten = stringToUTF8Array(stringy, u8array, 0, u8array.length); if (dontAddNull) u8array.length = numBytesWritten; return u8array; } var FS_stdin_getChar = () => { if (!FS_stdin_getChar_buffer.length) { var result = null; if (ENVIRONMENT_IS_NODE) { // we will read data by chunks of BUFSIZE var BUFSIZE = 256; var buf = Buffer.alloc(BUFSIZE); var bytesRead = 0; // For some reason we must suppress a closure warning here, even though // fd definitely exists on process.stdin, and is even the proper way to // get the fd of stdin, // https://github.com/nodejs/help/issues/2136#issuecomment-523649904 // This started to happen after moving this logic out of library_tty.js, // so it is related to the surrounding code in some unclear manner. /** @suppress {missingProperties} */ var fd = process.stdin.fd; try { bytesRead = fs.readSync(fd, buf); } catch(e) { // Cross-platform differences: on Windows, reading EOF throws an exception, but on other OSes, // reading EOF returns 0. Uniformize behavior by treating the EOF exception to return 0. if (e.toString().includes('EOF')) bytesRead = 0; else throw e; } if (bytesRead > 0) { result = buf.slice(0, bytesRead).toString('utf-8'); } else { result = null; } } else if (typeof window != 'undefined' && typeof window.prompt == 'function') { // Browser. result = window.prompt('Input: '); // returns null on cancel if (result !== null) { result += '\n'; } } else if (typeof readline == 'function') { // Command line. result = readline(); if (result !== null) { result += '\n'; } } if (!result) { return null; } FS_stdin_getChar_buffer = intArrayFromString(result, true); } return FS_stdin_getChar_buffer.shift(); }; var TTY = { ttys:[], init() { // https://github.com/emscripten-core/emscripten/pull/1555 // if (ENVIRONMENT_IS_NODE) { // // currently, FS.init does not distinguish if process.stdin is a file or TTY // // device, it always assumes it's a TTY device. because of this, we're forcing // // process.stdin to UTF8 encoding to at least make stdin reading compatible // // with text files until FS.init can be refactored. // process.stdin.setEncoding('utf8'); // } }, shutdown() { // https://github.com/emscripten-core/emscripten/pull/1555 // if (ENVIRONMENT_IS_NODE) { // // inolen: any idea as to why node -e 'process.stdin.read()' wouldn't exit immediately (with process.stdin being a tty)? // // isaacs: because now it's reading from the stream, you've expressed interest in it, so that read() kicks off a _read() which creates a ReadReq operation // // inolen: I thought read() in that case was a synchronous operation that just grabbed some amount of buffered data if it exists? // // isaacs: it is. but it also triggers a _read() call, which calls readStart() on the handle // // isaacs: do process.stdin.pause() and i'd think it'd probably close the pending call // process.stdin.pause(); // } }, register(dev, ops) { TTY.ttys[dev] = { input: [], output: [], ops: ops }; FS.registerDevice(dev, TTY.stream_ops); }, stream_ops:{ open(stream) { var tty = TTY.ttys[stream.node.rdev]; if (!tty) { throw new FS.ErrnoError(43); } stream.tty = tty; stream.seekable = false; }, close(stream) { // flush any pending line data stream.tty.ops.fsync(stream.tty); }, fsync(stream) { stream.tty.ops.fsync(stream.tty); }, read(stream, buffer, offset, length, pos /* ignored */) { if (!stream.tty || !stream.tty.ops.get_char) { throw new FS.ErrnoError(60); } var bytesRead = 0; for (var i = 0; i < length; i++) { var result; try { result = stream.tty.ops.get_char(stream.tty); } catch (e) { throw new FS.ErrnoError(29); } if (result === undefined && bytesRead === 0) { throw new FS.ErrnoError(6); } if (result === null || result === undefined) break; bytesRead++; buffer[offset+i] = result; } if (bytesRead) { stream.node.timestamp = Date.now(); } return bytesRead; }, write(stream, buffer, offset, length, pos) { if (!stream.tty || !stream.tty.ops.put_char) { throw new FS.ErrnoError(60); } try { for (var i = 0; i < length; i++) { stream.tty.ops.put_char(stream.tty, buffer[offset+i]); } } catch (e) { throw new FS.ErrnoError(29); } if (length) { stream.node.timestamp = Date.now(); } return i; }, }, default_tty_ops:{ get_char(tty) { return FS_stdin_getChar(); }, put_char(tty, val) { if (val === null || val === 10) { out(UTF8ArrayToString(tty.output, 0)); tty.output = []; } else { if (val != 0) tty.output.push(val); // val == 0 would cut text output off in the middle. } }, fsync(tty) { if (tty.output && tty.output.length > 0) { out(UTF8ArrayToString(tty.output, 0)); tty.output = []; } }, ioctl_tcgets(tty) { // typical setting return { c_iflag: 25856, c_oflag: 5, c_cflag: 191, c_lflag: 35387, c_cc: [ 0x03, 0x1c, 0x7f, 0x15, 0x04, 0x00, 0x01, 0x00, 0x11, 0x13, 0x1a, 0x00, 0x12, 0x0f, 0x17, 0x16, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, ] }; }, ioctl_tcsets(tty, optional_actions, data) { // currently just ignore return 0; }, ioctl_tiocgwinsz(tty) { return [24, 80]; }, }, default_tty1_ops:{ put_char(tty, val) { if (val === null || val === 10) { err(UTF8ArrayToString(tty.output, 0)); tty.output = []; } else { if (val != 0) tty.output.push(val); } }, fsync(tty) { if (tty.output && tty.output.length > 0) { err(UTF8ArrayToString(tty.output, 0)); tty.output = []; } }, }, }; var zeroMemory = (address, size) => { HEAPU8.fill(0, address, address + size); return address; }; var alignMemory = (size, alignment) => { assert(alignment, "alignment argument is required"); return Math.ceil(size / alignment) * alignment; }; var mmapAlloc = (size) => { size = alignMemory(size, 65536); var ptr = _emscripten_builtin_memalign(65536, size); if (!ptr) return 0; return zeroMemory(ptr, size); }; var MEMFS = { ops_table:null, mount(mount) { return MEMFS.createNode(null, '/', 16384 | 511 /* 0777 */, 0); }, createNode(parent, name, mode, dev) { if (FS.isBlkdev(mode) || FS.isFIFO(mode)) { // no supported throw new FS.ErrnoError(63); } if (!MEMFS.ops_table) { MEMFS.ops_table = { dir: { node: { getattr: MEMFS.node_ops.getattr, setattr: MEMFS.node_ops.setattr, lookup: MEMFS.node_ops.lookup, mknod: MEMFS.node_ops.mknod, rename: MEMFS.node_ops.rename, unlink: MEMFS.node_ops.unlink, rmdir: MEMFS.node_ops.rmdir, readdir: MEMFS.node_ops.readdir, symlink: MEMFS.node_ops.symlink }, stream: { llseek: MEMFS.stream_ops.llseek } }, file: { node: { getattr: MEMFS.node_ops.getattr, setattr: MEMFS.node_ops.setattr }, stream: { llseek: MEMFS.stream_ops.llseek, read: MEMFS.stream_ops.read, write: MEMFS.stream_ops.write, allocate: MEMFS.stream_ops.allocate, mmap: MEMFS.stream_ops.mmap, msync: MEMFS.stream_ops.msync } }, link: { node: { getattr: MEMFS.node_ops.getattr, setattr: MEMFS.node_ops.setattr, readlink: MEMFS.node_ops.readlink }, stream: {} }, chrdev: { node: { getattr: MEMFS.node_ops.getattr, setattr: MEMFS.node_ops.setattr }, stream: FS.chrdev_stream_ops } }; } var node = FS.createNode(parent, name, mode, dev); if (FS.isDir(node.mode)) { node.node_ops = MEMFS.ops_table.dir.node; node.stream_ops = MEMFS.ops_table.dir.stream; node.contents = {}; } else if (FS.isFile(node.mode)) { node.node_ops = MEMFS.ops_table.file.node; node.stream_ops = MEMFS.ops_table.file.stream; node.usedBytes = 0; // The actual number of bytes used in the typed array, as opposed to contents.length which gives the whole capacity. // When the byte data of the file is populated, this will point to either a typed array, or a normal JS array. Typed arrays are preferred // for performance, and used by default. However, typed arrays are not resizable like normal JS arrays are, so there is a small disk size // penalty involved for appending file writes that continuously grow a file similar to std::vector capacity vs used -scheme. node.contents = null; } else if (FS.isLink(node.mode)) { node.node_ops = MEMFS.ops_table.link.node; node.stream_ops = MEMFS.ops_table.link.stream; } else if (FS.isChrdev(node.mode)) { node.node_ops = MEMFS.ops_table.chrdev.node; node.stream_ops = MEMFS.ops_table.chrdev.stream; } node.timestamp = Date.now(); // add the new node to the parent if (parent) { parent.contents[name] = node; parent.timestamp = node.timestamp; } return node; }, getFileDataAsTypedArray(node) { if (!node.contents) return new Uint8Array(0); if (node.contents.subarray) return node.contents.subarray(0, node.usedBytes); // Make sure to not return excess unused bytes. return new Uint8Array(node.contents); }, expandFileStorage(node, newCapacity) { var prevCapacity = node.contents ? node.contents.length : 0; if (prevCapacity >= newCapacity) return; // No need to expand, the storage was already large enough. // Don't expand strictly to the given requested limit if it's only a very small increase, but instead geometrically grow capacity. // For small filesizes (<1MB), perform size*2 geometric increase, but for large sizes, do a much more conservative size*1.125 increase to // avoid overshooting the allocation cap by a very large margin. var CAPACITY_DOUBLING_MAX = 1024 * 1024; newCapacity = Math.max(newCapacity, (prevCapacity * (prevCapacity < CAPACITY_DOUBLING_MAX ? 2.0 : 1.125)) >>> 0); if (prevCapacity != 0) newCapacity = Math.max(newCapacity, 256); // At minimum allocate 256b for each file when expanding. var oldContents = node.contents; node.contents = new Uint8Array(newCapacity); // Allocate new storage. if (node.usedBytes > 0) node.contents.set(oldContents.subarray(0, node.usedBytes), 0); // Copy old data over to the new storage. }, resizeFileStorage(node, newSize) { if (node.usedBytes == newSize) return; if (newSize == 0) { node.contents = null; // Fully decommit when requesting a resize to zero. node.usedBytes = 0; } else { var oldContents = node.contents; node.contents = new Uint8Array(newSize); // Allocate new storage. if (oldContents) { node.contents.set(oldContents.subarray(0, Math.min(newSize, node.usedBytes))); // Copy old data over to the new storage. } node.usedBytes = newSize; } }, node_ops:{ getattr(node) { var attr = {}; // device numbers reuse inode numbers. attr.dev = FS.isChrdev(node.mode) ? node.id : 1; attr.ino = node.id; attr.mode = node.mode; attr.nlink = 1; attr.uid = 0; attr.gid = 0; attr.rdev = node.rdev; if (FS.isDir(node.mode)) { attr.size = 4096; } else if (FS.isFile(node.mode)) { attr.size = node.usedBytes; } else if (FS.isLink(node.mode)) { attr.size = node.link.length; } else { attr.size = 0; } attr.atime = new Date(node.timestamp); attr.mtime = new Date(node.timestamp); attr.ctime = new Date(node.timestamp); // NOTE: In our implementation, st_blocks = Math.ceil(st_size/st_blksize), // but this is not required by the standard. attr.blksize = 4096; attr.blocks = Math.ceil(attr.size / attr.blksize); return attr; }, setattr(node, attr) { if (attr.mode !== undefined) { node.mode = attr.mode; } if (attr.timestamp !== undefined) { node.timestamp = attr.timestamp; } if (attr.size !== undefined) { MEMFS.resizeFileStorage(node, attr.size); } }, lookup(parent, name) { throw FS.genericErrors[44]; }, mknod(parent, name, mode, dev) { return MEMFS.createNode(parent, name, mode, dev); }, rename(old_node, new_dir, new_name) { // if we're overwriting a directory at new_name, make sure it's empty. if (FS.isDir(old_node.mode)) { var new_node; try { new_node = FS.lookupNode(new_dir, new_name); } catch (e) { } if (new_node) { for (var i in new_node.contents) { throw new FS.ErrnoError(55); } } } // do the internal rewiring delete old_node.parent.contents[old_node.name]; old_node.parent.timestamp = Date.now() old_node.name = new_name; new_dir.contents[new_name] = old_node; new_dir.timestamp = old_node.parent.timestamp; old_node.parent = new_dir; }, unlink(parent, name) { delete parent.contents[name]; parent.timestamp = Date.now(); }, rmdir(parent, name) { var node = FS.lookupNode(parent, name); for (var i in node.contents) { throw new FS.ErrnoError(55); } delete parent.contents[name]; parent.timestamp = Date.now(); }, readdir(node) { var entries = ['.', '..']; for (var key in node.contents) { if (!node.contents.hasOwnProperty(key)) { continue; } entries.push(key); } return entries; }, symlink(parent, newname, oldpath) { var node = MEMFS.createNode(parent, newname, 511 /* 0777 */ | 40960, 0); node.link = oldpath; return node; }, readlink(node) { if (!FS.isLink(node.mode)) { throw new FS.ErrnoError(28); } return node.link; }, }, stream_ops:{ read(stream, buffer, offset, length, position) { var contents = stream.node.contents; if (position >= stream.node.usedBytes) return 0; var size = Math.min(stream.node.usedBytes - position, length); assert(size >= 0); if (size > 8 && contents.subarray) { // non-trivial, and typed array buffer.set(contents.subarray(position, position + size), offset); } else { for (var i = 0; i < size; i++) buffer[offset + i] = contents[position + i]; } return size; }, write(stream, buffer, offset, length, position, canOwn) { // The data buffer should be a typed array view assert(!(buffer instanceof ArrayBuffer)); if (!length) return 0; var node = stream.node; node.timestamp = Date.now(); if (buffer.subarray && (!node.contents || node.contents.subarray)) { // This write is from a typed array to a typed array? if (canOwn) { assert(position === 0, 'canOwn must imply no weird position inside the file'); node.contents = buffer.subarray(offset, offset + length); node.usedBytes = length; return length; } else if (node.usedBytes === 0 && position === 0) { // If this is a simple first write to an empty file, do a fast set since we don't need to care about old data. node.contents = buffer.slice(offset, offset + length); node.usedBytes = length; return length; } else if (position + length <= node.usedBytes) { // Writing to an already allocated and used subrange of the file? node.contents.set(buffer.subarray(offset, offset + length), position); return length; } } // Appending to an existing file and we need to reallocate, or source data did not come as a typed array. MEMFS.expandFileStorage(node, position+length); if (node.contents.subarray && buffer.subarray) { // Use typed array write which is available. node.contents.set(buffer.subarray(offset, offset + length), position); } else { for (var i = 0; i < length; i++) { node.contents[position + i] = buffer[offset + i]; // Or fall back to manual write if not. } } node.usedBytes = Math.max(node.usedBytes, position + length); return length; }, llseek(stream, offset, whence) { var position = offset; if (whence === 1) { position += stream.position; } else if (whence === 2) { if (FS.isFile(stream.node.mode)) { position += stream.node.usedBytes; } } if (position < 0) { throw new FS.ErrnoError(28); } return position; }, allocate(stream, offset, length) { MEMFS.expandFileStorage(stream.node, offset + length); stream.node.usedBytes = Math.max(stream.node.usedBytes, offset + length); }, mmap(stream, length, position, prot, flags) { if (!FS.isFile(stream.node.mode)) { throw new FS.ErrnoError(43); } var ptr; var allocated; var contents = stream.node.contents; // Only make a new copy when MAP_PRIVATE is specified. if (!(flags & 2) && contents.buffer === HEAP8.buffer) { // We can't emulate MAP_SHARED when the file is not backed by the // buffer we're mapping to (e.g. the HEAP buffer). allocated = false; ptr = contents.byteOffset; } else { // Try to avoid unnecessary slices. if (position > 0 || position + length < contents.length) { if (contents.subarray) { contents = contents.subarray(position, position + length); } else { contents = Array.prototype.slice.call(contents, position, position + length); } } allocated = true; ptr = mmapAlloc(length); if (!ptr) { throw new FS.ErrnoError(48); } HEAP8.set(contents, ptr); } return { ptr, allocated }; }, msync(stream, buffer, offset, length, mmapFlags) { MEMFS.stream_ops.write(stream, buffer, 0, length, offset, false); // should we check if bytesWritten and length are the same? return 0; }, }, }; /** @param {boolean=} noRunDep */ var asyncLoad = (url, onload, onerror, noRunDep) => { var dep = !noRunDep ? getUniqueRunDependency(`al ${url}`) : ''; readAsync(url, (arrayBuffer) => { assert(arrayBuffer, `Loading data file "${url}" failed (no arrayBuffer).`); onload(new Uint8Array(arrayBuffer)); if (dep) removeRunDependency(dep); }, (event) => { if (onerror) { onerror(); } else { throw `Loading data file "${url}" failed.`; } }); if (dep) addRunDependency(dep); }; var FS_createDataFile = (parent, name, fileData, canRead, canWrite, canOwn) => { return FS.createDataFile(parent, name, fileData, canRead, canWrite, canOwn); }; var preloadPlugins = Module['preloadPlugins'] || []; var FS_handledByPreloadPlugin = (byteArray, fullname, finish, onerror) => { // Ensure plugins are ready. if (typeof Browser != 'undefined') Browser.init(); var handled = false; preloadPlugins.forEach((plugin) => { if (handled) return; if (plugin['canHandle'](fullname)) { plugin['handle'](byteArray, fullname, finish, onerror); handled = true; } }); return handled; }; var FS_createPreloadedFile = (parent, name, url, canRead, canWrite, onload, onerror, dontCreateFile, canOwn, preFinish) => { // TODO we should allow people to just pass in a complete filename instead // of parent and name being that we just join them anyways var fullname = name ? PATH_FS.resolve(PATH.join2(parent, name)) : parent; var dep = getUniqueRunDependency(`cp ${fullname}`); // might have several active requests for the same fullname function processData(byteArray) { function finish(byteArray) { if (preFinish) preFinish(); if (!dontCreateFile) { FS_createDataFile(parent, name, byteArray, canRead, canWrite, canOwn); } if (onload) onload(); removeRunDependency(dep); } if (FS_handledByPreloadPlugin(byteArray, fullname, finish, () => { if (onerror) onerror(); removeRunDependency(dep); })) { return; } finish(byteArray); } addRunDependency(dep); if (typeof url == 'string') { asyncLoad(url, (byteArray) => processData(byteArray), onerror); } else { processData(url); } }; var FS_modeStringToFlags = (str) => { var flagModes = { 'r': 0, 'r+': 2, 'w': 512 | 64 | 1, 'w+': 512 | 64 | 2, 'a': 1024 | 64 | 1, 'a+': 1024 | 64 | 2, }; var flags = flagModes[str]; if (typeof flags == 'undefined') { throw new Error(`Unknown file open mode: ${str}`); } return flags; }; var FS_getMode = (canRead, canWrite) => { var mode = 0; if (canRead) mode |= 292 | 73; if (canWrite) mode |= 146; return mode; }; var ERRNO_MESSAGES = { 0:"Success", 1:"Arg list too long", 2:"Permission denied", 3:"Address already in use", 4:"Address not available", 5:"Address family not supported by protocol family", 6:"No more processes", 7:"Socket already connected", 8:"Bad file number", 9:"Trying to read unreadable message", 10:"Mount device busy", 11:"Operation canceled", 12:"No children", 13:"Connection aborted", 14:"Connection refused", 15:"Connection reset by peer", 16:"File locking deadlock error", 17:"Destination address required", 18:"Math arg out of domain of func", 19:"Quota exceeded", 20:"File exists", 21:"Bad address", 22:"File too large", 23:"Host is unreachable", 24:"Identifier removed", 25:"Illegal byte sequence", 26:"Connection already in progress", 27:"Interrupted system call", 28:"Invalid argument", 29:"I/O error", 30:"Socket is already connected", 31:"Is a directory", 32:"Too many symbolic links", 33:"Too many open files", 34:"Too many links", 35:"Message too long", 36:"Multihop attempted", 37:"File or path name too long", 38:"Network interface is not configured", 39:"Connection reset by network", 40:"Network is unreachable", 41:"Too many open files in system", 42:"No buffer space available", 43:"No such device", 44:"No such file or directory", 45:"Exec format error", 46:"No record locks available", 47:"The link has been severed", 48:"Not enough core", 49:"No message of desired type", 50:"Protocol not available", 51:"No space left on device", 52:"Function not implemented", 53:"Socket is not connected", 54:"Not a directory", 55:"Directory not empty", 56:"State not recoverable", 57:"Socket operation on non-socket", 59:"Not a typewriter", 60:"No such device or address", 61:"Value too large for defined data type", 62:"Previous owner died", 63:"Not super-user", 64:"Broken pipe", 65:"Protocol error", 66:"Unknown protocol", 67:"Protocol wrong type for socket", 68:"Math result not representable", 69:"Read only file system", 70:"Illegal seek", 71:"No such process", 72:"Stale file handle", 73:"Connection timed out", 74:"Text file busy", 75:"Cross-device link", 100:"Device not a stream", 101:"Bad font file fmt", 102:"Invalid slot", 103:"Invalid request code", 104:"No anode", 105:"Block device required", 106:"Channel number out of range", 107:"Level 3 halted", 108:"Level 3 reset", 109:"Link number out of range", 110:"Protocol driver not attached", 111:"No CSI structure available", 112:"Level 2 halted", 113:"Invalid exchange", 114:"Invalid request descriptor", 115:"Exchange full", 116:"No data (for no delay io)", 117:"Timer expired", 118:"Out of streams resources", 119:"Machine is not on the network", 120:"Package not installed", 121:"The object is remote", 122:"Advertise error", 123:"Srmount error", 124:"Communication error on send", 125:"Cross mount point (not really error)", 126:"Given log. name not unique", 127:"f.d. invalid for this operation", 128:"Remote address changed", 129:"Can access a needed shared lib", 130:"Accessing a corrupted shared lib", 131:".lib section in a.out corrupted", 132:"Attempting to link in too many libs", 133:"Attempting to exec a shared library", 135:"Streams pipe error", 136:"Too many users", 137:"Socket type not supported", 138:"Not supported", 139:"Protocol family not supported", 140:"Can't send after socket shutdown", 141:"Too many references", 142:"Host is down", 148:"No medium (in tape drive)", 156:"Level 2 not synchronized", }; var ERRNO_CODES = { }; var demangle = (func) => { warnOnce('warning: build with -sDEMANGLE_SUPPORT to link in libcxxabi demangling'); return func; }; var demangleAll = (text) => { var regex = /\b_Z[\w\d_]+/g; return text.replace(regex, function(x) { var y = demangle(x); return x === y ? x : (y + ' [' + x + ']'); }); }; var FS = { root:null, mounts:[], devices:{ }, streams:[], nextInode:1, nameTable:null, currentPath:"/", initialized:false, ignorePermissions:true, ErrnoError:null, genericErrors:{ }, filesystems:null, syncFSRequests:0, lookupPath(path, opts = {}) { path = PATH_FS.resolve(path); if (!path) return { path: '', node: null }; var defaults = { follow_mount: true, recurse_count: 0 }; opts = Object.assign(defaults, opts) if (opts.recurse_count > 8) { // max recursive lookup of 8 throw new FS.ErrnoError(32); } // split the absolute path var parts = path.split('/').filter((p) => !!p); // start at the root var current = FS.root; var current_path = '/'; for (var i = 0; i < parts.length; i++) { var islast = (i === parts.length-1); if (islast && opts.parent) { // stop resolving break; } current = FS.lookupNode(current, parts[i]); current_path = PATH.join2(current_path, parts[i]); // jump to the mount's root node if this is a mountpoint if (FS.isMountpoint(current)) { if (!islast || (islast && opts.follow_mount)) { current = current.mounted.root; } } // by default, lookupPath will not follow a symlink if it is the final path component. // setting opts.follow = true will override this behavior. if (!islast || opts.follow) { var count = 0; while (FS.isLink(current.mode)) { var link = FS.readlink(current_path); current_path = PATH_FS.resolve(PATH.dirname(current_path), link); var lookup = FS.lookupPath(current_path, { recurse_count: opts.recurse_count + 1 }); current = lookup.node; if (count++ > 40) { // limit max consecutive symlinks to 40 (SYMLOOP_MAX). throw new FS.ErrnoError(32); } } } } return { path: current_path, node: current }; }, getPath(node) { var path; while (true) { if (FS.isRoot(node)) { var mount = node.mount.mountpoint; if (!path) return mount; return mount[mount.length-1] !== '/' ? `${mount}/${path}` : mount + path; } path = path ? `${node.name}/${path}` : node.name; node = node.parent; } }, hashName(parentid, name) { var hash = 0; for (var i = 0; i < name.length; i++) { hash = ((hash << 5) - hash + name.charCodeAt(i)) | 0; } return ((parentid + hash) >>> 0) % FS.nameTable.length; }, hashAddNode(node) { var hash = FS.hashName(node.parent.id, node.name); node.name_next = FS.nameTable[hash]; FS.nameTable[hash] = node; }, hashRemoveNode(node) { var hash = FS.hashName(node.parent.id, node.name); if (FS.nameTable[hash] === node) { FS.nameTable[hash] = node.name_next; } else { var current = FS.nameTable[hash]; while (current) { if (current.name_next === node) { current.name_next = node.name_next; break; } current = current.name_next; } } }, lookupNode(parent, name) { var errCode = FS.mayLookup(parent); if (errCode) { throw new FS.ErrnoError(errCode, parent); } var hash = FS.hashName(parent.id, name); for (var node = FS.nameTable[hash]; node; node = node.name_next) { var nodeName = node.name; if (node.parent.id === parent.id && nodeName === name) { return node; } } // if we failed to find it in the cache, call into the VFS return FS.lookup(parent, name); }, createNode(parent, name, mode, rdev) { assert(typeof parent == 'object') var node = new FS.FSNode(parent, name, mode, rdev); FS.hashAddNode(node); return node; }, destroyNode(node) { FS.hashRemoveNode(node); }, isRoot(node) { return node === node.parent; }, isMountpoint(node) { return !!node.mounted; }, isFile(mode) { return (mode & 61440) === 32768; }, isDir(mode) { return (mode & 61440) === 16384; }, isLink(mode) { return (mode & 61440) === 40960; }, isChrdev(mode) { return (mode & 61440) === 8192; }, isBlkdev(mode) { return (mode & 61440) === 24576; }, isFIFO(mode) { return (mode & 61440) === 4096; }, isSocket(mode) { return (mode & 49152) === 49152; }, flagsToPermissionString(flag) { var perms = ['r', 'w', 'rw'][flag & 3]; if ((flag & 512)) { perms += 'w'; } return perms; }, nodePermissions(node, perms) { if (FS.ignorePermissions) { return 0; } // return 0 if any user, group or owner bits are set. if (perms.includes('r') && !(node.mode & 292)) { return 2; } else if (perms.includes('w') && !(node.mode & 146)) { return 2; } else if (perms.includes('x') && !(node.mode & 73)) { return 2; } return 0; }, mayLookup(dir) { var errCode = FS.nodePermissions(dir, 'x'); if (errCode) return errCode; if (!dir.node_ops.lookup) return 2; return 0; }, mayCreate(dir, name) { try { var node = FS.lookupNode(dir, name); return 20; } catch (e) { } return FS.nodePermissions(dir, 'wx'); }, mayDelete(dir, name, isdir) { var node; try { node = FS.lookupNode(dir, name); } catch (e) { return e.errno; } var errCode = FS.nodePermissions(dir, 'wx'); if (errCode) { return errCode; } if (isdir) { if (!FS.isDir(node.mode)) { return 54; } if (FS.isRoot(node) || FS.getPath(node) === FS.cwd()) { return 10; } } else { if (FS.isDir(node.mode)) { return 31; } } return 0; }, mayOpen(node, flags) { if (!node) { return 44; } if (FS.isLink(node.mode)) { return 32; } else if (FS.isDir(node.mode)) { if (FS.flagsToPermissionString(flags) !== 'r' || // opening for write (flags & 512)) { // TODO: check for O_SEARCH? (== search for dir only) return 31; } } return FS.nodePermissions(node, FS.flagsToPermissionString(flags)); }, MAX_OPEN_FDS:4096, nextfd() { for (var fd = 0; fd <= FS.MAX_OPEN_FDS; fd++) { if (!FS.streams[fd]) { return fd; } } throw new FS.ErrnoError(33); }, getStreamChecked(fd) { var stream = FS.getStream(fd); if (!stream) { throw new FS.ErrnoError(8); } return stream; }, getStream:(fd) => FS.streams[fd], createStream(stream, fd = -1) { if (!FS.FSStream) { FS.FSStream = /** @constructor */ function() { this.shared = { }; }; FS.FSStream.prototype = {}; Object.defineProperties(FS.FSStream.prototype, { object: { /** @this {FS.FSStream} */ get() { return this.node; }, /** @this {FS.FSStream} */ set(val) { this.node = val; } }, isRead: { /** @this {FS.FSStream} */ get() { return (this.flags & 2097155) !== 1; } }, isWrite: { /** @this {FS.FSStream} */ get() { return (this.flags & 2097155) !== 0; } }, isAppend: { /** @this {FS.FSStream} */ get() { return (this.flags & 1024); } }, flags: { /** @this {FS.FSStream} */ get() { return this.shared.flags; }, /** @this {FS.FSStream} */ set(val) { this.shared.flags = val; }, }, position : { /** @this {FS.FSStream} */ get() { return this.shared.position; }, /** @this {FS.FSStream} */ set(val) { this.shared.position = val; }, }, }); } // clone it, so we can return an instance of FSStream stream = Object.assign(new FS.FSStream(), stream); if (fd == -1) { fd = FS.nextfd(); } stream.fd = fd; FS.streams[fd] = stream; return stream; }, closeStream(fd) { FS.streams[fd] = null; }, chrdev_stream_ops:{ open(stream) { var device = FS.getDevice(stream.node.rdev); // override node's stream ops with the device's stream.stream_ops = device.stream_ops; // forward the open call if (stream.stream_ops.open) { stream.stream_ops.open(stream); } }, llseek() { throw new FS.ErrnoError(70); }, }, major:(dev) => ((dev) >> 8), minor:(dev) => ((dev) & 0xff), makedev:(ma, mi) => ((ma) << 8 | (mi)), registerDevice(dev, ops) { FS.devices[dev] = { stream_ops: ops }; }, getDevice:(dev) => FS.devices[dev], getMounts(mount) { var mounts = []; var check = [mount]; while (check.length) { var m = check.pop(); mounts.push(m); check.push.apply(check, m.mounts); } return mounts; }, syncfs(populate, callback) { if (typeof populate == 'function') { callback = populate; populate = false; } FS.syncFSRequests++; if (FS.syncFSRequests > 1) { err(`warning: ${FS.syncFSRequests} FS.syncfs operations in flight at once, probably just doing extra work`); } var mounts = FS.getMounts(FS.root.mount); var completed = 0; function doCallback(errCode) { assert(FS.syncFSRequests > 0); FS.syncFSRequests--; return callback(errCode); } function done(errCode) { if (errCode) { if (!done.errored) { done.errored = true; return doCallback(errCode); } return; } if (++completed >= mounts.length) { doCallback(null); } }; // sync all mounts mounts.forEach((mount) => { if (!mount.type.syncfs) { return done(null); } mount.type.syncfs(mount, populate, done); }); }, mount(type, opts, mountpoint) { if (typeof type == 'string') { // The filesystem was not included, and instead we have an error // message stored in the variable. throw type; } var root = mountpoint === '/'; var pseudo = !mountpoint; var node; if (root && FS.root) { throw new FS.ErrnoError(10); } else if (!root && !pseudo) { var lookup = FS.lookupPath(mountpoint, { follow_mount: false }); mountpoint = lookup.path; // use the absolute path node = lookup.node; if (FS.isMountpoint(node)) { throw new FS.ErrnoError(10); } if (!FS.isDir(node.mode)) { throw new FS.ErrnoError(54); } } var mount = { type, opts, mountpoint, mounts: [] }; // create a root node for the fs var mountRoot = type.mount(mount); mountRoot.mount = mount; mount.root = mountRoot; if (root) { FS.root = mountRoot; } else if (node) { // set as a mountpoint node.mounted = mount; // add the new mount to the current mount's children if (node.mount) { node.mount.mounts.push(mount); } } return mountRoot; }, unmount(mountpoint) { var lookup = FS.lookupPath(mountpoint, { follow_mount: false }); if (!FS.isMountpoint(lookup.node)) { throw new FS.ErrnoError(28); } // destroy the nodes for this mount, and all its child mounts var node = lookup.node; var mount = node.mounted; var mounts = FS.getMounts(mount); Object.keys(FS.nameTable).forEach((hash) => { var current = FS.nameTable[hash]; while (current) { var next = current.name_next; if (mounts.includes(current.mount)) { FS.destroyNode(current); } current = next; } }); // no longer a mountpoint node.mounted = null; // remove this mount from the child mounts var idx = node.mount.mounts.indexOf(mount); assert(idx !== -1); node.mount.mounts.splice(idx, 1); }, lookup(parent, name) { return parent.node_ops.lookup(parent, name); }, mknod(path, mode, dev) { var lookup = FS.lookupPath(path, { parent: true }); var parent = lookup.node; var name = PATH.basename(path); if (!name || name === '.' || name === '..') { throw new FS.ErrnoError(28); } var errCode = FS.mayCreate(parent, name); if (errCode) { throw new FS.ErrnoError(errCode); } if (!parent.node_ops.mknod) { throw new FS.ErrnoError(63); } return parent.node_ops.mknod(parent, name, mode, dev); }, create(path, mode) { mode = mode !== undefined ? mode : 438 /* 0666 */; mode &= 4095; mode |= 32768; return FS.mknod(path, mode, 0); }, mkdir(path, mode) { mode = mode !== undefined ? mode : 511 /* 0777 */; mode &= 511 | 512; mode |= 16384; return FS.mknod(path, mode, 0); }, mkdirTree(path, mode) { var dirs = path.split('/'); var d = ''; for (var i = 0; i < dirs.length; ++i) { if (!dirs[i]) continue; d += '/' + dirs[i]; try { FS.mkdir(d, mode); } catch(e) { if (e.errno != 20) throw e; } } }, mkdev(path, mode, dev) { if (typeof dev == 'undefined') { dev = mode; mode = 438 /* 0666 */; } mode |= 8192; return FS.mknod(path, mode, dev); }, symlink(oldpath, newpath) { if (!PATH_FS.resolve(oldpath)) { throw new FS.ErrnoError(44); } var lookup = FS.lookupPath(newpath, { parent: true }); var parent = lookup.node; if (!parent) { throw new FS.ErrnoError(44); } var newname = PATH.basename(newpath); var errCode = FS.mayCreate(parent, newname); if (errCode) { throw new FS.ErrnoError(errCode); } if (!parent.node_ops.symlink) { throw new FS.ErrnoError(63); } return parent.node_ops.symlink(parent, newname, oldpath); }, rename(old_path, new_path) { var old_dirname = PATH.dirname(old_path); var new_dirname = PATH.dirname(new_path); var old_name = PATH.basename(old_path); var new_name = PATH.basename(new_path); // parents must exist var lookup, old_dir, new_dir; // let the errors from non existant directories percolate up lookup = FS.lookupPath(old_path, { parent: true }); old_dir = lookup.node; lookup = FS.lookupPath(new_path, { parent: true }); new_dir = lookup.node; if (!old_dir || !new_dir) throw new FS.ErrnoError(44); // need to be part of the same mount if (old_dir.mount !== new_dir.mount) { throw new FS.ErrnoError(75); } // source must exist var old_node = FS.lookupNode(old_dir, old_name); // old path should not be an ancestor of the new path var relative = PATH_FS.relative(old_path, new_dirname); if (relative.charAt(0) !== '.') { throw new FS.ErrnoError(28); } // new path should not be an ancestor of the old path relative = PATH_FS.relative(new_path, old_dirname); if (relative.charAt(0) !== '.') { throw new FS.ErrnoError(55); } // see if the new path already exists var new_node; try { new_node = FS.lookupNode(new_dir, new_name); } catch (e) { // not fatal } // early out if nothing needs to change if (old_node === new_node) { return; } // we'll need to delete the old entry var isdir = FS.isDir(old_node.mode); var errCode = FS.mayDelete(old_dir, old_name, isdir); if (errCode) { throw new FS.ErrnoError(errCode); } // need delete permissions if we'll be overwriting. // need create permissions if new doesn't already exist. errCode = new_node ? FS.mayDelete(new_dir, new_name, isdir) : FS.mayCreate(new_dir, new_name); if (errCode) { throw new FS.ErrnoError(errCode); } if (!old_dir.node_ops.rename) { throw new FS.ErrnoError(63); } if (FS.isMountpoint(old_node) || (new_node && FS.isMountpoint(new_node))) { throw new FS.ErrnoError(10); } // if we are going to change the parent, check write permissions if (new_dir !== old_dir) { errCode = FS.nodePermissions(old_dir, 'w'); if (errCode) { throw new FS.ErrnoError(errCode); } } // remove the node from the lookup hash FS.hashRemoveNode(old_node); // do the underlying fs rename try { old_dir.node_ops.rename(old_node, new_dir, new_name); } catch (e) { throw e; } finally { // add the node back to the hash (in case node_ops.rename // changed its name) FS.hashAddNode(old_node); } }, rmdir(path) { var lookup = FS.lookupPath(path, { parent: true }); var parent = lookup.node; var name = PATH.basename(path); var node = FS.lookupNode(parent, name); var errCode = FS.mayDelete(parent, name, true); if (errCode) { throw new FS.ErrnoError(errCode); } if (!parent.node_ops.rmdir) { throw new FS.ErrnoError(63); } if (FS.isMountpoint(node)) { throw new FS.ErrnoError(10); } parent.node_ops.rmdir(parent, name); FS.destroyNode(node); }, readdir(path) { var lookup = FS.lookupPath(path, { follow: true }); var node = lookup.node; if (!node.node_ops.readdir) { throw new FS.ErrnoError(54); } return node.node_ops.readdir(node); }, unlink(path) { var lookup = FS.lookupPath(path, { parent: true }); var parent = lookup.node; if (!parent) { throw new FS.ErrnoError(44); } var name = PATH.basename(path); var node = FS.lookupNode(parent, name); var errCode = FS.mayDelete(parent, name, false); if (errCode) { // According to POSIX, we should map EISDIR to EPERM, but // we instead do what Linux does (and we must, as we use // the musl linux libc). throw new FS.ErrnoError(errCode); } if (!parent.node_ops.unlink) { throw new FS.ErrnoError(63); } if (FS.isMountpoint(node)) { throw new FS.ErrnoError(10); } parent.node_ops.unlink(parent, name); FS.destroyNode(node); }, readlink(path) { var lookup = FS.lookupPath(path); var link = lookup.node; if (!link) { throw new FS.ErrnoError(44); } if (!link.node_ops.readlink) { throw new FS.ErrnoError(28); } return PATH_FS.resolve(FS.getPath(link.parent), link.node_ops.readlink(link)); }, stat(path, dontFollow) { var lookup = FS.lookupPath(path, { follow: !dontFollow }); var node = lookup.node; if (!node) { throw new FS.ErrnoError(44); } if (!node.node_ops.getattr) { throw new FS.ErrnoError(63); } return node.node_ops.getattr(node); }, lstat(path) { return FS.stat(path, true); }, chmod(path, mode, dontFollow) { var node; if (typeof path == 'string') { var lookup = FS.lookupPath(path, { follow: !dontFollow }); node = lookup.node; } else { node = path; } if (!node.node_ops.setattr) { throw new FS.ErrnoError(63); } node.node_ops.setattr(node, { mode: (mode & 4095) | (node.mode & ~4095), timestamp: Date.now() }); }, lchmod(path, mode) { FS.chmod(path, mode, true); }, fchmod(fd, mode) { var stream = FS.getStreamChecked(fd); FS.chmod(stream.node, mode); }, chown(path, uid, gid, dontFollow) { var node; if (typeof path == 'string') { var lookup = FS.lookupPath(path, { follow: !dontFollow }); node = lookup.node; } else { node = path; } if (!node.node_ops.setattr) { throw new FS.ErrnoError(63); } node.node_ops.setattr(node, { timestamp: Date.now() // we ignore the uid / gid for now }); }, lchown(path, uid, gid) { FS.chown(path, uid, gid, true); }, fchown(fd, uid, gid) { var stream = FS.getStreamChecked(fd); FS.chown(stream.node, uid, gid); }, truncate(path, len) { if (len < 0) { throw new FS.ErrnoError(28); } var node; if (typeof path == 'string') { var lookup = FS.lookupPath(path, { follow: true }); node = lookup.node; } else { node = path; } if (!node.node_ops.setattr) { throw new FS.ErrnoError(63); } if (FS.isDir(node.mode)) { throw new FS.ErrnoError(31); } if (!FS.isFile(node.mode)) { throw new FS.ErrnoError(28); } var errCode = FS.nodePermissions(node, 'w'); if (errCode) { throw new FS.ErrnoError(errCode); } node.node_ops.setattr(node, { size: len, timestamp: Date.now() }); }, ftruncate(fd, len) { var stream = FS.getStreamChecked(fd); if ((stream.flags & 2097155) === 0) { throw new FS.ErrnoError(28); } FS.truncate(stream.node, len); }, utime(path, atime, mtime) { var lookup = FS.lookupPath(path, { follow: true }); var node = lookup.node; node.node_ops.setattr(node, { timestamp: Math.max(atime, mtime) }); }, open(path, flags, mode) { if (path === "") { throw new FS.ErrnoError(44); } flags = typeof flags == 'string' ? FS_modeStringToFlags(flags) : flags; mode = typeof mode == 'undefined' ? 438 /* 0666 */ : mode; if ((flags & 64)) { mode = (mode & 4095) | 32768; } else { mode = 0; } var node; if (typeof path == 'object') { node = path; } else { path = PATH.normalize(path); try { var lookup = FS.lookupPath(path, { follow: !(flags & 131072) }); node = lookup.node; } catch (e) { // ignore } } // perhaps we need to create the node var created = false; if ((flags & 64)) { if (node) { // if O_CREAT and O_EXCL are set, error out if the node already exists if ((flags & 128)) { throw new FS.ErrnoError(20); } } else { // node doesn't exist, try to create it node = FS.mknod(path, mode, 0); created = true; } } if (!node) { throw new FS.ErrnoError(44); } // can't truncate a device if (FS.isChrdev(node.mode)) { flags &= ~512; } // if asked only for a directory, then this must be one if ((flags & 65536) && !FS.isDir(node.mode)) { throw new FS.ErrnoError(54); } // check permissions, if this is not a file we just created now (it is ok to // create and write to a file with read-only permissions; it is read-only // for later use) if (!created) { var errCode = FS.mayOpen(node, flags); if (errCode) { throw new FS.ErrnoError(errCode); } } // do truncation if necessary if ((flags & 512) && !created) { FS.truncate(node, 0); } // we've already handled these, don't pass down to the underlying vfs flags &= ~(128 | 512 | 131072); // register the stream with the filesystem var stream = FS.createStream({ node, path: FS.getPath(node), // we want the absolute path to the node flags, seekable: true, position: 0, stream_ops: node.stream_ops, // used by the file family libc calls (fopen, fwrite, ferror, etc.) ungotten: [], error: false }); // call the new stream's open function if (stream.stream_ops.open) { stream.stream_ops.open(stream); } if (Module['logReadFiles'] && !(flags & 1)) { if (!FS.readFiles) FS.readFiles = {}; if (!(path in FS.readFiles)) { FS.readFiles[path] = 1; } } return stream; }, close(stream) { if (FS.isClosed(stream)) { throw new FS.ErrnoError(8); } if (stream.getdents) stream.getdents = null; // free readdir state try { if (stream.stream_ops.close) { stream.stream_ops.close(stream); } } catch (e) { throw e; } finally { FS.closeStream(stream.fd); } stream.fd = null; }, isClosed(stream) { return stream.fd === null; }, llseek(stream, offset, whence) { if (FS.isClosed(stream)) { throw new FS.ErrnoError(8); } if (!stream.seekable || !stream.stream_ops.llseek) { throw new FS.ErrnoError(70); } if (whence != 0 && whence != 1 && whence != 2) { throw new FS.ErrnoError(28); } stream.position = stream.stream_ops.llseek(stream, offset, whence); stream.ungotten = []; return stream.position; }, read(stream, buffer, offset, length, position) { assert(offset >= 0); if (length < 0 || position < 0) { throw new FS.ErrnoError(28); } if (FS.isClosed(stream)) { throw new FS.ErrnoError(8); } if ((stream.flags & 2097155) === 1) { throw new FS.ErrnoError(8); } if (FS.isDir(stream.node.mode)) { throw new FS.ErrnoError(31); } if (!stream.stream_ops.read) { throw new FS.ErrnoError(28); } var seeking = typeof position != 'undefined'; if (!seeking) { position = stream.position; } else if (!stream.seekable) { throw new FS.ErrnoError(70); } var bytesRead = stream.stream_ops.read(stream, buffer, offset, length, position); if (!seeking) stream.position += bytesRead; return bytesRead; }, write(stream, buffer, offset, length, position, canOwn) { assert(offset >= 0); if (length < 0 || position < 0) { throw new FS.ErrnoError(28); } if (FS.isClosed(stream)) { throw new FS.ErrnoError(8); } if ((stream.flags & 2097155) === 0) { throw new FS.ErrnoError(8); } if (FS.isDir(stream.node.mode)) { throw new FS.ErrnoError(31); } if (!stream.stream_ops.write) { throw new FS.ErrnoError(28); } if (stream.seekable && stream.flags & 1024) { // seek to the end before writing in append mode FS.llseek(stream, 0, 2); } var seeking = typeof position != 'undefined'; if (!seeking) { position = stream.position; } else if (!stream.seekable) { throw new FS.ErrnoError(70); } var bytesWritten = stream.stream_ops.write(stream, buffer, offset, length, position, canOwn); if (!seeking) stream.position += bytesWritten; return bytesWritten; }, allocate(stream, offset, length) { if (FS.isClosed(stream)) { throw new FS.ErrnoError(8); } if (offset < 0 || length <= 0) { throw new FS.ErrnoError(28); } if ((stream.flags & 2097155) === 0) { throw new FS.ErrnoError(8); } if (!FS.isFile(stream.node.mode) && !FS.isDir(stream.node.mode)) { throw new FS.ErrnoError(43); } if (!stream.stream_ops.allocate) { throw new FS.ErrnoError(138); } stream.stream_ops.allocate(stream, offset, length); }, mmap(stream, length, position, prot, flags) { // User requests writing to file (prot & PROT_WRITE != 0). // Checking if we have permissions to write to the file unless // MAP_PRIVATE flag is set. According to POSIX spec it is possible // to write to file opened in read-only mode with MAP_PRIVATE flag, // as all modifications will be visible only in the memory of // the current process. if ((prot & 2) !== 0 && (flags & 2) === 0 && (stream.flags & 2097155) !== 2) { throw new FS.ErrnoError(2); } if ((stream.flags & 2097155) === 1) { throw new FS.ErrnoError(2); } if (!stream.stream_ops.mmap) { throw new FS.ErrnoError(43); } return stream.stream_ops.mmap(stream, length, position, prot, flags); }, msync(stream, buffer, offset, length, mmapFlags) { assert(offset >= 0); if (!stream.stream_ops.msync) { return 0; } return stream.stream_ops.msync(stream, buffer, offset, length, mmapFlags); }, munmap:(stream) => 0, ioctl(stream, cmd, arg) { if (!stream.stream_ops.ioctl) { throw new FS.ErrnoError(59); } return stream.stream_ops.ioctl(stream, cmd, arg); }, readFile(path, opts = {}) { opts.flags = opts.flags || 0; opts.encoding = opts.encoding || 'binary'; if (opts.encoding !== 'utf8' && opts.encoding !== 'binary') { throw new Error(`Invalid encoding type "${opts.encoding}"`); } var ret; var stream = FS.open(path, opts.flags); var stat = FS.stat(path); var length = stat.size; var buf = new Uint8Array(length); FS.read(stream, buf, 0, length, 0); if (opts.encoding === 'utf8') { ret = UTF8ArrayToString(buf, 0); } else if (opts.encoding === 'binary') { ret = buf; } FS.close(stream); return ret; }, writeFile(path, data, opts = {}) { opts.flags = opts.flags || 577; var stream = FS.open(path, opts.flags, opts.mode); if (typeof data == 'string') { var buf = new Uint8Array(lengthBytesUTF8(data)+1); var actualNumBytes = stringToUTF8Array(data, buf, 0, buf.length); FS.write(stream, buf, 0, actualNumBytes, undefined, opts.canOwn); } else if (ArrayBuffer.isView(data)) { FS.write(stream, data, 0, data.byteLength, undefined, opts.canOwn); } else { throw new Error('Unsupported data type'); } FS.close(stream); }, cwd:() => FS.currentPath, chdir(path) { var lookup = FS.lookupPath(path, { follow: true }); if (lookup.node === null) { throw new FS.ErrnoError(44); } if (!FS.isDir(lookup.node.mode)) { throw new FS.ErrnoError(54); } var errCode = FS.nodePermissions(lookup.node, 'x'); if (errCode) { throw new FS.ErrnoError(errCode); } FS.currentPath = lookup.path; }, createDefaultDirectories() { FS.mkdir('/tmp'); FS.mkdir('/home'); FS.mkdir('/home/web_user'); }, createDefaultDevices() { // create /dev FS.mkdir('/dev'); // setup /dev/null FS.registerDevice(FS.makedev(1, 3), { read: () => 0, write: (stream, buffer, offset, length, pos) => length, }); FS.mkdev('/dev/null', FS.makedev(1, 3)); // setup /dev/tty and /dev/tty1 // stderr needs to print output using err() rather than out() // so we register a second tty just for it. TTY.register(FS.makedev(5, 0), TTY.default_tty_ops); TTY.register(FS.makedev(6, 0), TTY.default_tty1_ops); FS.mkdev('/dev/tty', FS.makedev(5, 0)); FS.mkdev('/dev/tty1', FS.makedev(6, 0)); // setup /dev/[u]random // use a buffer to avoid overhead of individual crypto calls per byte var randomBuffer = new Uint8Array(1024), randomLeft = 0; var randomByte = () => { if (randomLeft === 0) { randomLeft = randomFill(randomBuffer).byteLength; } return randomBuffer[--randomLeft]; }; FS.createDevice('/dev', 'random', randomByte); FS.createDevice('/dev', 'urandom', randomByte); // we're not going to emulate the actual shm device, // just create the tmp dirs that reside in it commonly FS.mkdir('/dev/shm'); FS.mkdir('/dev/shm/tmp'); }, createSpecialDirectories() { // create /proc/self/fd which allows /proc/self/fd/6 => readlink gives the // name of the stream for fd 6 (see test_unistd_ttyname) FS.mkdir('/proc'); var proc_self = FS.mkdir('/proc/self'); FS.mkdir('/proc/self/fd'); FS.mount({ mount() { var node = FS.createNode(proc_self, 'fd', 16384 | 511 /* 0777 */, 73); node.node_ops = { lookup(parent, name) { var fd = +name; var stream = FS.getStreamChecked(fd); var ret = { parent: null, mount: { mountpoint: 'fake' }, node_ops: { readlink: () => stream.path }, }; ret.parent = ret; // make it look like a simple root node return ret; } }; return node; } }, {}, '/proc/self/fd'); }, createStandardStreams() { // TODO deprecate the old functionality of a single // input / output callback and that utilizes FS.createDevice // and instead require a unique set of stream ops // by default, we symlink the standard streams to the // default tty devices. however, if the standard streams // have been overwritten we create a unique device for // them instead. if (Module['stdin']) { FS.createDevice('/dev', 'stdin', Module['stdin']); } else { FS.symlink('/dev/tty', '/dev/stdin'); } if (Module['stdout']) { FS.createDevice('/dev', 'stdout', null, Module['stdout']); } else { FS.symlink('/dev/tty', '/dev/stdout'); } if (Module['stderr']) { FS.createDevice('/dev', 'stderr', null, Module['stderr']); } else { FS.symlink('/dev/tty1', '/dev/stderr'); } // open default streams for the stdin, stdout and stderr devices var stdin = FS.open('/dev/stdin', 0); var stdout = FS.open('/dev/stdout', 1); var stderr = FS.open('/dev/stderr', 1); assert(stdin.fd === 0, `invalid handle for stdin (${stdin.fd})`); assert(stdout.fd === 1, `invalid handle for stdout (${stdout.fd})`); assert(stderr.fd === 2, `invalid handle for stderr (${stderr.fd})`); }, ensureErrnoError() { if (FS.ErrnoError) return; FS.ErrnoError = /** @this{Object} */ function ErrnoError(errno, node) { // We set the `name` property to be able to identify `FS.ErrnoError` // - the `name` is a standard ECMA-262 property of error objects. Kind of good to have it anyway. // - when using PROXYFS, an error can come from an underlying FS // as different FS objects have their own FS.ErrnoError each, // the test `err instanceof FS.ErrnoError` won't detect an error coming from another filesystem, causing bugs. // we'll use the reliable test `err.name == "ErrnoError"` instead this.name = 'ErrnoError'; this.node = node; this.setErrno = /** @this{Object} */ function(errno) { this.errno = errno; for (var key in ERRNO_CODES) { if (ERRNO_CODES[key] === errno) { this.code = key; break; } } }; this.setErrno(errno); this.message = ERRNO_MESSAGES[errno]; // Try to get a maximally helpful stack trace. On Node.js, getting Error.stack // now ensures it shows what we want. if (this.stack) { // Define the stack property for Node.js 4, which otherwise errors on the next line. Object.defineProperty(this, "stack", { value: (new Error).stack, writable: true }); this.stack = demangleAll(this.stack); } }; FS.ErrnoError.prototype = new Error(); FS.ErrnoError.prototype.constructor = FS.ErrnoError; // Some errors may happen quite a bit, to avoid overhead we reuse them (and suffer a lack of stack info) [44].forEach((code) => { FS.genericErrors[code] = new FS.ErrnoError(code); FS.genericErrors[code].stack = ''; }); }, staticInit() { FS.ensureErrnoError(); FS.nameTable = new Array(4096); FS.mount(MEMFS, {}, '/'); FS.createDefaultDirectories(); FS.createDefaultDevices(); FS.createSpecialDirectories(); FS.filesystems = { 'MEMFS': MEMFS, }; }, init(input, output, error) { assert(!FS.init.initialized, 'FS.init was previously called. If you want to initialize later with custom parameters, remove any earlier calls (note that one is automatically added to the generated code)'); FS.init.initialized = true; FS.ensureErrnoError(); // Allow Module.stdin etc. to provide defaults, if none explicitly passed to us here Module['stdin'] = input || Module['stdin']; Module['stdout'] = output || Module['stdout']; Module['stderr'] = error || Module['stderr']; FS.createStandardStreams(); }, quit() { FS.init.initialized = false; // force-flush all streams, so we get musl std streams printed out _fflush(0); // close all of our streams for (var i = 0; i < FS.streams.length; i++) { var stream = FS.streams[i]; if (!stream) { continue; } FS.close(stream); } }, findObject(path, dontResolveLastLink) { var ret = FS.analyzePath(path, dontResolveLastLink); if (!ret.exists) { return null; } return ret.object; }, analyzePath(path, dontResolveLastLink) { // operate from within the context of the symlink's target try { var lookup = FS.lookupPath(path, { follow: !dontResolveLastLink }); path = lookup.path; } catch (e) { } var ret = { isRoot: false, exists: false, error: 0, name: null, path: null, object: null, parentExists: false, parentPath: null, parentObject: null }; try { var lookup = FS.lookupPath(path, { parent: true }); ret.parentExists = true; ret.parentPath = lookup.path; ret.parentObject = lookup.node; ret.name = PATH.basename(path); lookup = FS.lookupPath(path, { follow: !dontResolveLastLink }); ret.exists = true; ret.path = lookup.path; ret.object = lookup.node; ret.name = lookup.node.name; ret.isRoot = lookup.path === '/'; } catch (e) { ret.error = e.errno; }; return ret; }, createPath(parent, path, canRead, canWrite) { parent = typeof parent == 'string' ? parent : FS.getPath(parent); var parts = path.split('/').reverse(); while (parts.length) { var part = parts.pop(); if (!part) continue; var current = PATH.join2(parent, part); try { FS.mkdir(current); } catch (e) { // ignore EEXIST } parent = current; } return current; }, createFile(parent, name, properties, canRead, canWrite) { var path = PATH.join2(typeof parent == 'string' ? parent : FS.getPath(parent), name); var mode = FS_getMode(canRead, canWrite); return FS.create(path, mode); }, createDataFile(parent, name, data, canRead, canWrite, canOwn) { var path = name; if (parent) { parent = typeof parent == 'string' ? parent : FS.getPath(parent); path = name ? PATH.join2(parent, name) : parent; } var mode = FS_getMode(canRead, canWrite); var node = FS.create(path, mode); if (data) { if (typeof data == 'string') { var arr = new Array(data.length); for (var i = 0, len = data.length; i < len; ++i) arr[i] = data.charCodeAt(i); data = arr; } // make sure we can write to the file FS.chmod(node, mode | 146); var stream = FS.open(node, 577); FS.write(stream, data, 0, data.length, 0, canOwn); FS.close(stream); FS.chmod(node, mode); } return node; }, createDevice(parent, name, input, output) { var path = PATH.join2(typeof parent == 'string' ? parent : FS.getPath(parent), name); var mode = FS_getMode(!!input, !!output); if (!FS.createDevice.major) FS.createDevice.major = 64; var dev = FS.makedev(FS.createDevice.major++, 0); // Create a fake device that a set of stream ops to emulate // the old behavior. FS.registerDevice(dev, { open(stream) { stream.seekable = false; }, close(stream) { // flush any pending line data if (output && output.buffer && output.buffer.length) { output(10); } }, read(stream, buffer, offset, length, pos /* ignored */) { var bytesRead = 0; for (var i = 0; i < length; i++) { var result; try { result = input(); } catch (e) { throw new FS.ErrnoError(29); } if (result === undefined && bytesRead === 0) { throw new FS.ErrnoError(6); } if (result === null || result === undefined) break; bytesRead++; buffer[offset+i] = result; } if (bytesRead) { stream.node.timestamp = Date.now(); } return bytesRead; }, write(stream, buffer, offset, length, pos) { for (var i = 0; i < length; i++) { try { output(buffer[offset+i]); } catch (e) { throw new FS.ErrnoError(29); } } if (length) { stream.node.timestamp = Date.now(); } return i; } }); return FS.mkdev(path, mode, dev); }, forceLoadFile(obj) { if (obj.isDevice || obj.isFolder || obj.link || obj.contents) return true; if (typeof XMLHttpRequest != 'undefined') { throw new Error("Lazy loading should have been performed (contents set) in createLazyFile, but it was not. Lazy loading only works in web workers. Use --embed-file or --preload-file in emcc on the main thread."); } else if (read_) { // Command-line. try { // WARNING: Can't read binary files in V8's d8 or tracemonkey's js, as // read() will try to parse UTF8. obj.contents = intArrayFromString(read_(obj.url), true); obj.usedBytes = obj.contents.length; } catch (e) { throw new FS.ErrnoError(29); } } else { throw new Error('Cannot load without read() or XMLHttpRequest.'); } }, createLazyFile(parent, name, url, canRead, canWrite) { // Lazy chunked Uint8Array (implements get and length from Uint8Array). Actual getting is abstracted away for eventual reuse. /** @constructor */ function LazyUint8Array() { this.lengthKnown = false; this.chunks = []; // Loaded chunks. Index is the chunk number } LazyUint8Array.prototype.get = /** @this{Object} */ function LazyUint8Array_get(idx) { if (idx > this.length-1 || idx < 0) { return undefined; } var chunkOffset = idx % this.chunkSize; var chunkNum = (idx / this.chunkSize)|0; return this.getter(chunkNum)[chunkOffset]; }; LazyUint8Array.prototype.setDataGetter = function LazyUint8Array_setDataGetter(getter) { this.getter = getter; }; LazyUint8Array.prototype.cacheLength = function LazyUint8Array_cacheLength() { // Find length var xhr = new XMLHttpRequest(); xhr.open('HEAD', url, false); xhr.send(null); if (!(xhr.status >= 200 && xhr.status < 300 || xhr.status === 304)) throw new Error("Couldn't load " + url + ". Status: " + xhr.status); var datalength = Number(xhr.getResponseHeader("Content-length")); var header; var hasByteServing = (header = xhr.getResponseHeader("Accept-Ranges")) && header === "bytes"; var usesGzip = (header = xhr.getResponseHeader("Content-Encoding")) && header === "gzip"; var chunkSize = 1024*1024; // Chunk size in bytes if (!hasByteServing) chunkSize = datalength; // Function to get a range from the remote URL. var doXHR = (from, to) => { if (from > to) throw new Error("invalid range (" + from + ", " + to + ") or no bytes requested!"); if (to > datalength-1) throw new Error("only " + datalength + " bytes available! programmer error!"); // TODO: Use mozResponseArrayBuffer, responseStream, etc. if available. var xhr = new XMLHttpRequest(); xhr.open('GET', url, false); if (datalength !== chunkSize) xhr.setRequestHeader("Range", "bytes=" + from + "-" + to); // Some hints to the browser that we want binary data. xhr.responseType = 'arraybuffer'; if (xhr.overrideMimeType) { xhr.overrideMimeType('text/plain; charset=x-user-defined'); } xhr.send(null); if (!(xhr.status >= 200 && xhr.status < 300 || xhr.status === 304)) throw new Error("Couldn't load " + url + ". Status: " + xhr.status); if (xhr.response !== undefined) { return new Uint8Array(/** @type{Array} */(xhr.response || [])); } return intArrayFromString(xhr.responseText || '', true); }; var lazyArray = this; lazyArray.setDataGetter((chunkNum) => { var start = chunkNum * chunkSize; var end = (chunkNum+1) * chunkSize - 1; // including this byte end = Math.min(end, datalength-1); // if datalength-1 is selected, this is the last block if (typeof lazyArray.chunks[chunkNum] == 'undefined') { lazyArray.chunks[chunkNum] = doXHR(start, end); } if (typeof lazyArray.chunks[chunkNum] == 'undefined') throw new Error('doXHR failed!'); return lazyArray.chunks[chunkNum]; }); if (usesGzip || !datalength) { // if the server uses gzip or doesn't supply the length, we have to download the whole file to get the (uncompressed) length chunkSize = datalength = 1; // this will force getter(0)/doXHR do download the whole file datalength = this.getter(0).length; chunkSize = datalength; out("LazyFiles on gzip forces download of the whole file when length is accessed"); } this._length = datalength; this._chunkSize = chunkSize; this.lengthKnown = true; }; if (typeof XMLHttpRequest != 'undefined') { if (!ENVIRONMENT_IS_WORKER) throw 'Cannot do synchronous binary XHRs outside webworkers in modern browsers. Use --embed-file or --preload-file in emcc'; var lazyArray = new LazyUint8Array(); Object.defineProperties(lazyArray, { length: { get: /** @this{Object} */ function() { if (!this.lengthKnown) { this.cacheLength(); } return this._length; } }, chunkSize: { get: /** @this{Object} */ function() { if (!this.lengthKnown) { this.cacheLength(); } return this._chunkSize; } } }); var properties = { isDevice: false, contents: lazyArray }; } else { var properties = { isDevice: false, url: url }; } var node = FS.createFile(parent, name, properties, canRead, canWrite); // This is a total hack, but I want to get this lazy file code out of the // core of MEMFS. If we want to keep this lazy file concept I feel it should // be its own thin LAZYFS proxying calls to MEMFS. if (properties.contents) { node.contents = properties.contents; } else if (properties.url) { node.contents = null; node.url = properties.url; } // Add a function that defers querying the file size until it is asked the first time. Object.defineProperties(node, { usedBytes: { get: /** @this {FSNode} */ function() { return this.contents.length; } } }); // override each stream op with one that tries to force load the lazy file first var stream_ops = {}; var keys = Object.keys(node.stream_ops); keys.forEach((key) => { var fn = node.stream_ops[key]; stream_ops[key] = function forceLoadLazyFile() { FS.forceLoadFile(node); return fn.apply(null, arguments); }; }); function writeChunks(stream, buffer, offset, length, position) { var contents = stream.node.contents; if (position >= contents.length) return 0; var size = Math.min(contents.length - position, length); assert(size >= 0); if (contents.slice) { // normal array for (var i = 0; i < size; i++) { buffer[offset + i] = contents[position + i]; } } else { for (var i = 0; i < size; i++) { // LazyUint8Array from sync binary XHR buffer[offset + i] = contents.get(position + i); } } return size; } // use a custom read function stream_ops.read = (stream, buffer, offset, length, position) => { FS.forceLoadFile(node); return writeChunks(stream, buffer, offset, length, position) }; // use a custom mmap function stream_ops.mmap = (stream, length, position, prot, flags) => { FS.forceLoadFile(node); var ptr = mmapAlloc(length); if (!ptr) { throw new FS.ErrnoError(48); } writeChunks(stream, HEAP8, ptr, length, position); return { ptr, allocated: true }; }; node.stream_ops = stream_ops; return node; }, absolutePath() { abort('FS.absolutePath has been removed; use PATH_FS.resolve instead'); }, createFolder() { abort('FS.createFolder has been removed; use FS.mkdir instead'); }, createLink() { abort('FS.createLink has been removed; use FS.symlink instead'); }, joinPath() { abort('FS.joinPath has been removed; use PATH.join instead'); }, mmapAlloc() { abort('FS.mmapAlloc has been replaced by the top level function mmapAlloc'); }, standardizePath() { abort('FS.standardizePath has been removed; use PATH.normalize instead'); }, }; var SYSCALLS = { DEFAULT_POLLMASK:5, calculateAt(dirfd, path, allowEmpty) { if (PATH.isAbs(path)) { return path; } // relative path var dir; if (dirfd === -100) { dir = FS.cwd(); } else { var dirstream = SYSCALLS.getStreamFromFD(dirfd); dir = dirstream.path; } if (path.length == 0) { if (!allowEmpty) { throw new FS.ErrnoError(44);; } return dir; } return PATH.join2(dir, path); }, doStat(func, path, buf) { try { var stat = func(path); } catch (e) { if (e && e.node && PATH.normalize(path) !== PATH.normalize(FS.getPath(e.node))) { // an error occurred while trying to look up the path; we should just report ENOTDIR return -54; } throw e; } HEAP32[((buf)>>2)] = stat.dev; HEAP32[(((buf)+(4))>>2)] = stat.mode; HEAPU32[(((buf)+(8))>>2)] = stat.nlink; HEAP32[(((buf)+(12))>>2)] = stat.uid; HEAP32[(((buf)+(16))>>2)] = stat.gid; HEAP32[(((buf)+(20))>>2)] = stat.rdev; (tempI64 = [stat.size>>>0,(tempDouble=stat.size,(+(Math.abs(tempDouble))) >= 1.0 ? (tempDouble > 0.0 ? (+(Math.floor((tempDouble)/4294967296.0)))>>>0 : (~~((+(Math.ceil((tempDouble - +(((~~(tempDouble)))>>>0))/4294967296.0)))))>>>0) : 0)], HEAP32[(((buf)+(24))>>2)] = tempI64[0],HEAP32[(((buf)+(28))>>2)] = tempI64[1]); HEAP32[(((buf)+(32))>>2)] = 4096; HEAP32[(((buf)+(36))>>2)] = stat.blocks; var atime = stat.atime.getTime(); var mtime = stat.mtime.getTime(); var ctime = stat.ctime.getTime(); (tempI64 = [Math.floor(atime / 1000)>>>0,(tempDouble=Math.floor(atime / 1000),(+(Math.abs(tempDouble))) >= 1.0 ? (tempDouble > 0.0 ? (+(Math.floor((tempDouble)/4294967296.0)))>>>0 : (~~((+(Math.ceil((tempDouble - +(((~~(tempDouble)))>>>0))/4294967296.0)))))>>>0) : 0)], HEAP32[(((buf)+(40))>>2)] = tempI64[0],HEAP32[(((buf)+(44))>>2)] = tempI64[1]); HEAPU32[(((buf)+(48))>>2)] = (atime % 1000) * 1000; (tempI64 = [Math.floor(mtime / 1000)>>>0,(tempDouble=Math.floor(mtime / 1000),(+(Math.abs(tempDouble))) >= 1.0 ? (tempDouble > 0.0 ? (+(Math.floor((tempDouble)/4294967296.0)))>>>0 : (~~((+(Math.ceil((tempDouble - +(((~~(tempDouble)))>>>0))/4294967296.0)))))>>>0) : 0)], HEAP32[(((buf)+(56))>>2)] = tempI64[0],HEAP32[(((buf)+(60))>>2)] = tempI64[1]); HEAPU32[(((buf)+(64))>>2)] = (mtime % 1000) * 1000; (tempI64 = [Math.floor(ctime / 1000)>>>0,(tempDouble=Math.floor(ctime / 1000),(+(Math.abs(tempDouble))) >= 1.0 ? (tempDouble > 0.0 ? (+(Math.floor((tempDouble)/4294967296.0)))>>>0 : (~~((+(Math.ceil((tempDouble - +(((~~(tempDouble)))>>>0))/4294967296.0)))))>>>0) : 0)], HEAP32[(((buf)+(72))>>2)] = tempI64[0],HEAP32[(((buf)+(76))>>2)] = tempI64[1]); HEAPU32[(((buf)+(80))>>2)] = (ctime % 1000) * 1000; (tempI64 = [stat.ino>>>0,(tempDouble=stat.ino,(+(Math.abs(tempDouble))) >= 1.0 ? (tempDouble > 0.0 ? (+(Math.floor((tempDouble)/4294967296.0)))>>>0 : (~~((+(Math.ceil((tempDouble - +(((~~(tempDouble)))>>>0))/4294967296.0)))))>>>0) : 0)], HEAP32[(((buf)+(88))>>2)] = tempI64[0],HEAP32[(((buf)+(92))>>2)] = tempI64[1]); return 0; }, doMsync(addr, stream, len, flags, offset) { if (!FS.isFile(stream.node.mode)) { throw new FS.ErrnoError(43); } if (flags & 2) { // MAP_PRIVATE calls need not to be synced back to underlying fs return 0; } var buffer = HEAPU8.slice(addr, addr + len); FS.msync(stream, buffer, offset, len, flags); }, varargs:undefined, get() { assert(SYSCALLS.varargs != undefined); // the `+` prepended here is necessary to convince the JSCompiler that varargs is indeed a number. var ret = HEAP32[((+SYSCALLS.varargs)>>2)]; SYSCALLS.varargs += 4; return ret; }, getp() { return SYSCALLS.get() }, getStr(ptr) { var ret = UTF8ToString(ptr); return ret; }, getStreamFromFD(fd) { var stream = FS.getStreamChecked(fd); return stream; }, }; function ___syscall__newselect(nfds, readfds, writefds, exceptfds, timeout) { try { // readfds are supported, // writefds checks socket open status // exceptfds are supported, although on web, such exceptional conditions never arise in web sockets // and so the exceptfds list will always return empty. // timeout is supported, although on SOCKFS and PIPEFS these are ignored and always treated as 0 - fully async assert(nfds <= 64, 'nfds must be less than or equal to 64'); // fd sets have 64 bits // TODO: this could be 1024 based on current musl headers var total = 0; var srcReadLow = (readfds ? HEAP32[((readfds)>>2)] : 0), srcReadHigh = (readfds ? HEAP32[(((readfds)+(4))>>2)] : 0); var srcWriteLow = (writefds ? HEAP32[((writefds)>>2)] : 0), srcWriteHigh = (writefds ? HEAP32[(((writefds)+(4))>>2)] : 0); var srcExceptLow = (exceptfds ? HEAP32[((exceptfds)>>2)] : 0), srcExceptHigh = (exceptfds ? HEAP32[(((exceptfds)+(4))>>2)] : 0); var dstReadLow = 0, dstReadHigh = 0; var dstWriteLow = 0, dstWriteHigh = 0; var dstExceptLow = 0, dstExceptHigh = 0; var allLow = (readfds ? HEAP32[((readfds)>>2)] : 0) | (writefds ? HEAP32[((writefds)>>2)] : 0) | (exceptfds ? HEAP32[((exceptfds)>>2)] : 0); var allHigh = (readfds ? HEAP32[(((readfds)+(4))>>2)] : 0) | (writefds ? HEAP32[(((writefds)+(4))>>2)] : 0) | (exceptfds ? HEAP32[(((exceptfds)+(4))>>2)] : 0); var check = function(fd, low, high, val) { return (fd < 32 ? (low & val) : (high & val)); }; for (var fd = 0; fd < nfds; fd++) { var mask = 1 << (fd % 32); if (!(check(fd, allLow, allHigh, mask))) { continue; // index isn't in the set } var stream = SYSCALLS.getStreamFromFD(fd); var flags = SYSCALLS.DEFAULT_POLLMASK; if (stream.stream_ops.poll) { var timeoutInMillis = -1; if (timeout) { var tv_sec = (readfds ? HEAP32[((timeout)>>2)] : 0), tv_usec = (readfds ? HEAP32[(((timeout)+(8))>>2)] : 0); timeoutInMillis = (tv_sec + tv_usec / 1000000) * 1000; } flags = stream.stream_ops.poll(stream, timeoutInMillis); } if ((flags & 1) && check(fd, srcReadLow, srcReadHigh, mask)) { fd < 32 ? (dstReadLow = dstReadLow | mask) : (dstReadHigh = dstReadHigh | mask); total++; } if ((flags & 4) && check(fd, srcWriteLow, srcWriteHigh, mask)) { fd < 32 ? (dstWriteLow = dstWriteLow | mask) : (dstWriteHigh = dstWriteHigh | mask); total++; } if ((flags & 2) && check(fd, srcExceptLow, srcExceptHigh, mask)) { fd < 32 ? (dstExceptLow = dstExceptLow | mask) : (dstExceptHigh = dstExceptHigh | mask); total++; } } if (readfds) { HEAP32[((readfds)>>2)] = dstReadLow; HEAP32[(((readfds)+(4))>>2)] = dstReadHigh; } if (writefds) { HEAP32[((writefds)>>2)] = dstWriteLow; HEAP32[(((writefds)+(4))>>2)] = dstWriteHigh; } if (exceptfds) { HEAP32[((exceptfds)>>2)] = dstExceptLow; HEAP32[(((exceptfds)+(4))>>2)] = dstExceptHigh; } return total; } catch (e) { if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e; return -e.errno; } } var SOCKFS = { mount(mount) { // If Module['websocket'] has already been defined (e.g. for configuring // the subprotocol/url) use that, if not initialise it to a new object. Module['websocket'] = (Module['websocket'] && ('object' === typeof Module['websocket'])) ? Module['websocket'] : {}; // Add the Event registration mechanism to the exported websocket configuration // object so we can register network callbacks from native JavaScript too. // For more documentation see system/include/emscripten/emscripten.h Module['websocket']._callbacks = {}; Module['websocket']['on'] = /** @this{Object} */ function(event, callback) { if ('function' === typeof callback) { this._callbacks[event] = callback; } return this; }; Module['websocket'].emit = /** @this{Object} */ function(event, param) { if ('function' === typeof this._callbacks[event]) { this._callbacks[event].call(this, param); } }; // If debug is enabled register simple default logging callbacks for each Event. return FS.createNode(null, '/', 16384 | 511 /* 0777 */, 0); }, createSocket(family, type, protocol) { type &= ~526336; // Some applications may pass it; it makes no sense for a single process. var streaming = type == 1; if (streaming && protocol && protocol != 6) { throw new FS.ErrnoError(66); // if SOCK_STREAM, must be tcp or 0. } // create our internal socket structure var sock = { family, type, protocol, server: null, error: null, // Used in getsockopt for SOL_SOCKET/SO_ERROR test peers: {}, pending: [], recv_queue: [], sock_ops: SOCKFS.websocket_sock_ops }; // create the filesystem node to store the socket structure var name = SOCKFS.nextname(); var node = FS.createNode(SOCKFS.root, name, 49152, 0); node.sock = sock; // and the wrapping stream that enables library functions such // as read and write to indirectly interact with the socket var stream = FS.createStream({ path: name, node, flags: 2, seekable: false, stream_ops: SOCKFS.stream_ops }); // map the new stream to the socket structure (sockets have a 1:1 // relationship with a stream) sock.stream = stream; return sock; }, getSocket(fd) { var stream = FS.getStream(fd); if (!stream || !FS.isSocket(stream.node.mode)) { return null; } return stream.node.sock; }, stream_ops:{ poll(stream) { var sock = stream.node.sock; return sock.sock_ops.poll(sock); }, ioctl(stream, request, varargs) { var sock = stream.node.sock; return sock.sock_ops.ioctl(sock, request, varargs); }, read(stream, buffer, offset, length, position /* ignored */) { var sock = stream.node.sock; var msg = sock.sock_ops.recvmsg(sock, length); if (!msg) { // socket is closed return 0; } buffer.set(msg.buffer, offset); return msg.buffer.length; }, write(stream, buffer, offset, length, position /* ignored */) { var sock = stream.node.sock; return sock.sock_ops.sendmsg(sock, buffer, offset, length); }, close(stream) { var sock = stream.node.sock; sock.sock_ops.close(sock); }, }, nextname() { if (!SOCKFS.nextname.current) { SOCKFS.nextname.current = 0; } return 'socket[' + (SOCKFS.nextname.current++) + ']'; }, websocket_sock_ops:{ createPeer(sock, addr, port) { var ws; if (typeof addr == 'object') { ws = addr; addr = null; port = null; } if (ws) { // for sockets that've already connected (e.g. we're the server) // we can inspect the _socket property for the address if (ws._socket) { addr = ws._socket.remoteAddress; port = ws._socket.remotePort; } // if we're just now initializing a connection to the remote, // inspect the url property else { var result = /ws[s]?:\/\/([^:]+):(\d+)/.exec(ws.url); if (!result) { throw new Error('WebSocket URL must be in the format ws(s)://address:port'); } addr = result[1]; port = parseInt(result[2], 10); } } else { // create the actual websocket object and connect try { // runtimeConfig gets set to true if WebSocket runtime configuration is available. var runtimeConfig = (Module['websocket'] && ('object' === typeof Module['websocket'])); // The default value is 'ws://' the replace is needed because the compiler replaces '//' comments with '#' // comments without checking context, so we'd end up with ws:#, the replace swaps the '#' for '//' again. var url = 'ws:#'.replace('#', '//'); if (runtimeConfig) { if ('string' === typeof Module['websocket']['url']) { url = Module['websocket']['url']; // Fetch runtime WebSocket URL config. } } if (url === 'ws://' || url === 'wss://') { // Is the supplied URL config just a prefix, if so complete it. var parts = addr.split('/'); url = url + parts[0] + ":" + port + "/" + parts.slice(1).join('/'); } // Make the WebSocket subprotocol (Sec-WebSocket-Protocol) default to binary if no configuration is set. var subProtocols = 'binary'; // The default value is 'binary' if (runtimeConfig) { if ('string' === typeof Module['websocket']['subprotocol']) { subProtocols = Module['websocket']['subprotocol']; // Fetch runtime WebSocket subprotocol config. } } // The default WebSocket options var opts = undefined; if (subProtocols !== 'null') { // The regex trims the string (removes spaces at the beginning and end, then splits the string by // , into an Array. Whitespace removal is important for Websockify and ws. subProtocols = subProtocols.replace(/^ +| +$/g,"").split(/ *, */); opts = subProtocols; } // some webservers (azure) does not support subprotocol header if (runtimeConfig && null === Module['websocket']['subprotocol']) { subProtocols = 'null'; opts = undefined; } // If node we use the ws library. var WebSocketConstructor; if (ENVIRONMENT_IS_NODE) { WebSocketConstructor = /** @type{(typeof WebSocket)} */(require('ws')); } else { WebSocketConstructor = WebSocket; } ws = new WebSocketConstructor(url, opts); ws.binaryType = 'arraybuffer'; } catch (e) { throw new FS.ErrnoError(23); } } var peer = { addr, port, socket: ws, dgram_send_queue: [] }; SOCKFS.websocket_sock_ops.addPeer(sock, peer); SOCKFS.websocket_sock_ops.handlePeerEvents(sock, peer); // if this is a bound dgram socket, send the port number first to allow // us to override the ephemeral port reported to us by remotePort on the // remote end. if (sock.type === 2 && typeof sock.sport != 'undefined') { peer.dgram_send_queue.push(new Uint8Array([ 255, 255, 255, 255, 'p'.charCodeAt(0), 'o'.charCodeAt(0), 'r'.charCodeAt(0), 't'.charCodeAt(0), ((sock.sport & 0xff00) >> 8) , (sock.sport & 0xff) ])); } return peer; }, getPeer(sock, addr, port) { return sock.peers[addr + ':' + port]; }, addPeer(sock, peer) { sock.peers[peer.addr + ':' + peer.port] = peer; }, removePeer(sock, peer) { delete sock.peers[peer.addr + ':' + peer.port]; }, handlePeerEvents(sock, peer) { var first = true; var handleOpen = function () { Module['websocket'].emit('open', sock.stream.fd); try { var queued = peer.dgram_send_queue.shift(); while (queued) { peer.socket.send(queued); queued = peer.dgram_send_queue.shift(); } } catch (e) { // not much we can do here in the way of proper error handling as we've already // lied and said this data was sent. shut it down. peer.socket.close(); } }; function handleMessage(data) { if (typeof data == 'string') { var encoder = new TextEncoder(); // should be utf-8 data = encoder.encode(data); // make a typed array from the string } else { assert(data.byteLength !== undefined); // must receive an ArrayBuffer if (data.byteLength == 0) { // An empty ArrayBuffer will emit a pseudo disconnect event // as recv/recvmsg will return zero which indicates that a socket // has performed a shutdown although the connection has not been disconnected yet. return; } data = new Uint8Array(data); // make a typed array view on the array buffer } // if this is the port message, override the peer's port with it var wasfirst = first; first = false; if (wasfirst && data.length === 10 && data[0] === 255 && data[1] === 255 && data[2] === 255 && data[3] === 255 && data[4] === 'p'.charCodeAt(0) && data[5] === 'o'.charCodeAt(0) && data[6] === 'r'.charCodeAt(0) && data[7] === 't'.charCodeAt(0)) { // update the peer's port and it's key in the peer map var newport = ((data[8] << 8) | data[9]); SOCKFS.websocket_sock_ops.removePeer(sock, peer); peer.port = newport; SOCKFS.websocket_sock_ops.addPeer(sock, peer); return; } sock.recv_queue.push({ addr: peer.addr, port: peer.port, data: data }); Module['websocket'].emit('message', sock.stream.fd); }; if (ENVIRONMENT_IS_NODE) { peer.socket.on('open', handleOpen); peer.socket.on('message', function(data, isBinary) { if (!isBinary) { return; } handleMessage((new Uint8Array(data)).buffer); // copy from node Buffer -> ArrayBuffer }); peer.socket.on('close', function() { Module['websocket'].emit('close', sock.stream.fd); }); peer.socket.on('error', function(error) { // Although the ws library may pass errors that may be more descriptive than // ECONNREFUSED they are not necessarily the expected error code e.g. // ENOTFOUND on getaddrinfo seems to be node.js specific, so using ECONNREFUSED // is still probably the most useful thing to do. sock.error = 14; // Used in getsockopt for SOL_SOCKET/SO_ERROR test. Module['websocket'].emit('error', [sock.stream.fd, sock.error, 'ECONNREFUSED: Connection refused']); // don't throw }); } else { peer.socket.onopen = handleOpen; peer.socket.onclose = function() { Module['websocket'].emit('close', sock.stream.fd); }; peer.socket.onmessage = function peer_socket_onmessage(event) { handleMessage(event.data); }; peer.socket.onerror = function(error) { // The WebSocket spec only allows a 'simple event' to be thrown on error, // so we only really know as much as ECONNREFUSED. sock.error = 14; // Used in getsockopt for SOL_SOCKET/SO_ERROR test. Module['websocket'].emit('error', [sock.stream.fd, sock.error, 'ECONNREFUSED: Connection refused']); }; } }, poll(sock) { if (sock.type === 1 && sock.server) { // listen sockets should only say they're available for reading // if there are pending clients. return sock.pending.length ? (64 | 1) : 0; } var mask = 0; var dest = sock.type === 1 ? // we only care about the socket state for connection-based sockets SOCKFS.websocket_sock_ops.getPeer(sock, sock.daddr, sock.dport) : null; if (sock.recv_queue.length || !dest || // connection-less sockets are always ready to read (dest && dest.socket.readyState === dest.socket.CLOSING) || (dest && dest.socket.readyState === dest.socket.CLOSED)) { // let recv return 0 once closed mask |= (64 | 1); } if (!dest || // connection-less sockets are always ready to write (dest && dest.socket.readyState === dest.socket.OPEN)) { mask |= 4; } if ((dest && dest.socket.readyState === dest.socket.CLOSING) || (dest && dest.socket.readyState === dest.socket.CLOSED)) { mask |= 16; } return mask; }, ioctl(sock, request, arg) { switch (request) { case 21531: var bytes = 0; if (sock.recv_queue.length) { bytes = sock.recv_queue[0].data.length; } HEAP32[((arg)>>2)] = bytes; return 0; default: return 28; } }, close(sock) { // if we've spawned a listen server, close it if (sock.server) { try { sock.server.close(); } catch (e) { } sock.server = null; } // close any peer connections var peers = Object.keys(sock.peers); for (var i = 0; i < peers.length; i++) { var peer = sock.peers[peers[i]]; try { peer.socket.close(); } catch (e) { } SOCKFS.websocket_sock_ops.removePeer(sock, peer); } return 0; }, bind(sock, addr, port) { if (typeof sock.saddr != 'undefined' || typeof sock.sport != 'undefined') { throw new FS.ErrnoError(28); // already bound } sock.saddr = addr; sock.sport = port; // in order to emulate dgram sockets, we need to launch a listen server when // binding on a connection-less socket // note: this is only required on the server side if (sock.type === 2) { // close the existing server if it exists if (sock.server) { sock.server.close(); sock.server = null; } // swallow error operation not supported error that occurs when binding in the // browser where this isn't supported try { sock.sock_ops.listen(sock, 0); } catch (e) { if (!(e.name === 'ErrnoError')) throw e; if (e.errno !== 138) throw e; } } }, connect(sock, addr, port) { if (sock.server) { throw new FS.ErrnoError(138); } // TODO autobind // if (!sock.addr && sock.type == 2) { // } // early out if we're already connected / in the middle of connecting if (typeof sock.daddr != 'undefined' && typeof sock.dport != 'undefined') { var dest = SOCKFS.websocket_sock_ops.getPeer(sock, sock.daddr, sock.dport); if (dest) { if (dest.socket.readyState === dest.socket.CONNECTING) { throw new FS.ErrnoError(7); } else { throw new FS.ErrnoError(30); } } } // add the socket to our peer list and set our // destination address / port to match var peer = SOCKFS.websocket_sock_ops.createPeer(sock, addr, port); sock.daddr = peer.addr; sock.dport = peer.port; // always "fail" in non-blocking mode throw new FS.ErrnoError(26); }, listen(sock, backlog) { if (!ENVIRONMENT_IS_NODE) { throw new FS.ErrnoError(138); } if (sock.server) { throw new FS.ErrnoError(28); // already listening } var WebSocketServer = require('ws').Server; var host = sock.saddr; sock.server = new WebSocketServer({ host, port: sock.sport // TODO support backlog }); Module['websocket'].emit('listen', sock.stream.fd); // Send Event with listen fd. sock.server.on('connection', function(ws) { if (sock.type === 1) { var newsock = SOCKFS.createSocket(sock.family, sock.type, sock.protocol); // create a peer on the new socket var peer = SOCKFS.websocket_sock_ops.createPeer(newsock, ws); newsock.daddr = peer.addr; newsock.dport = peer.port; // push to queue for accept to pick up sock.pending.push(newsock); Module['websocket'].emit('connection', newsock.stream.fd); } else { // create a peer on the listen socket so calling sendto // with the listen socket and an address will resolve // to the correct client SOCKFS.websocket_sock_ops.createPeer(sock, ws); Module['websocket'].emit('connection', sock.stream.fd); } }); sock.server.on('close', function() { Module['websocket'].emit('close', sock.stream.fd); sock.server = null; }); sock.server.on('error', function(error) { // Although the ws library may pass errors that may be more descriptive than // ECONNREFUSED they are not necessarily the expected error code e.g. // ENOTFOUND on getaddrinfo seems to be node.js specific, so using EHOSTUNREACH // is still probably the most useful thing to do. This error shouldn't // occur in a well written app as errors should get trapped in the compiled // app's own getaddrinfo call. sock.error = 23; // Used in getsockopt for SOL_SOCKET/SO_ERROR test. Module['websocket'].emit('error', [sock.stream.fd, sock.error, 'EHOSTUNREACH: Host is unreachable']); // don't throw }); }, accept(listensock) { if (!listensock.server || !listensock.pending.length) { throw new FS.ErrnoError(28); } var newsock = listensock.pending.shift(); newsock.stream.flags = listensock.stream.flags; return newsock; }, getname(sock, peer) { var addr, port; if (peer) { if (sock.daddr === undefined || sock.dport === undefined) { throw new FS.ErrnoError(53); } addr = sock.daddr; port = sock.dport; } else { // TODO saddr and sport will be set for bind()'d UDP sockets, but what // should we be returning for TCP sockets that've been connect()'d? addr = sock.saddr || 0; port = sock.sport || 0; } return { addr, port }; }, sendmsg(sock, buffer, offset, length, addr, port) { if (sock.type === 2) { // connection-less sockets will honor the message address, // and otherwise fall back to the bound destination address if (addr === undefined || port === undefined) { addr = sock.daddr; port = sock.dport; } // if there was no address to fall back to, error out if (addr === undefined || port === undefined) { throw new FS.ErrnoError(17); } } else { // connection-based sockets will only use the bound addr = sock.daddr; port = sock.dport; } // find the peer for the destination address var dest = SOCKFS.websocket_sock_ops.getPeer(sock, addr, port); // early out if not connected with a connection-based socket if (sock.type === 1) { if (!dest || dest.socket.readyState === dest.socket.CLOSING || dest.socket.readyState === dest.socket.CLOSED) { throw new FS.ErrnoError(53); } else if (dest.socket.readyState === dest.socket.CONNECTING) { throw new FS.ErrnoError(6); } } // create a copy of the incoming data to send, as the WebSocket API // doesn't work entirely with an ArrayBufferView, it'll just send // the entire underlying buffer if (ArrayBuffer.isView(buffer)) { offset += buffer.byteOffset; buffer = buffer.buffer; } var data; data = buffer.slice(offset, offset + length); // if we're emulating a connection-less dgram socket and don't have // a cached connection, queue the buffer to send upon connect and // lie, saying the data was sent now. if (sock.type === 2) { if (!dest || dest.socket.readyState !== dest.socket.OPEN) { // if we're not connected, open a new connection if (!dest || dest.socket.readyState === dest.socket.CLOSING || dest.socket.readyState === dest.socket.CLOSED) { dest = SOCKFS.websocket_sock_ops.createPeer(sock, addr, port); } dest.dgram_send_queue.push(data); return length; } } try { // send the actual data dest.socket.send(data); return length; } catch (e) { throw new FS.ErrnoError(28); } }, recvmsg(sock, length) { // http://pubs.opengroup.org/onlinepubs/7908799/xns/recvmsg.html if (sock.type === 1 && sock.server) { // tcp servers should not be recv()'ing on the listen socket throw new FS.ErrnoError(53); } var queued = sock.recv_queue.shift(); if (!queued) { if (sock.type === 1) { var dest = SOCKFS.websocket_sock_ops.getPeer(sock, sock.daddr, sock.dport); if (!dest) { // if we have a destination address but are not connected, error out throw new FS.ErrnoError(53); } if (dest.socket.readyState === dest.socket.CLOSING || dest.socket.readyState === dest.socket.CLOSED) { // return null if the socket has closed return null; } // else, our socket is in a valid state but truly has nothing available throw new FS.ErrnoError(6); } throw new FS.ErrnoError(6); } // queued.data will be an ArrayBuffer if it's unadulterated, but if it's // requeued TCP data it'll be an ArrayBufferView var queuedLength = queued.data.byteLength || queued.data.length; var queuedOffset = queued.data.byteOffset || 0; var queuedBuffer = queued.data.buffer || queued.data; var bytesRead = Math.min(length, queuedLength); var res = { buffer: new Uint8Array(queuedBuffer, queuedOffset, bytesRead), addr: queued.addr, port: queued.port }; // push back any unread data for TCP connections if (sock.type === 1 && bytesRead < queuedLength) { var bytesRemaining = queuedLength - bytesRead; queued.data = new Uint8Array(queuedBuffer, queuedOffset + bytesRead, bytesRemaining); sock.recv_queue.unshift(queued); } return res; }, }, }; var getSocketFromFD = (fd) => { var socket = SOCKFS.getSocket(fd); if (!socket) throw new FS.ErrnoError(8); return socket; }; var setErrNo = (value) => { HEAP32[((___errno_location())>>2)] = value; return value; }; var Sockets = { BUFFER_SIZE:10240, MAX_BUFFER_SIZE:10485760, nextFd:1, fds:{ }, nextport:1, maxport:65535, peer:null, connections:{ }, portmap:{ }, localAddr:4261412874, addrPool:[33554442,50331658,67108874,83886090,100663306,117440522,134217738,150994954,167772170,184549386,201326602,218103818,234881034], }; var inetPton4 = (str) => { var b = str.split('.'); for (var i = 0; i < 4; i++) { var tmp = Number(b[i]); if (isNaN(tmp)) return null; b[i] = tmp; } return (b[0] | (b[1] << 8) | (b[2] << 16) | (b[3] << 24)) >>> 0; }; /** @suppress {checkTypes} */ var jstoi_q = (str) => parseInt(str); var inetPton6 = (str) => { var words; var w, offset, z, i; /* http://home.deds.nl/~aeron/regex/ */ var valid6regx = /^((?=.*::)(?!.*::.+::)(::)?([\dA-F]{1,4}:(:|\b)|){5}|([\dA-F]{1,4}:){6})((([\dA-F]{1,4}((?!\3)::|:\b|$))|(?!\2\3)){2}|(((2[0-4]|1\d|[1-9])?\d|25[0-5])\.?\b){4})$/i var parts = []; if (!valid6regx.test(str)) { return null; } if (str === "::") { return [0, 0, 0, 0, 0, 0, 0, 0]; } // Z placeholder to keep track of zeros when splitting the string on ":" if (str.startsWith("::")) { str = str.replace("::", "Z:"); // leading zeros case } else { str = str.replace("::", ":Z:"); } if (str.indexOf(".") > 0) { // parse IPv4 embedded stress str = str.replace(new RegExp('[.]', 'g'), ":"); words = str.split(":"); words[words.length-4] = jstoi_q(words[words.length-4]) + jstoi_q(words[words.length-3])*256; words[words.length-3] = jstoi_q(words[words.length-2]) + jstoi_q(words[words.length-1])*256; words = words.slice(0, words.length-2); } else { words = str.split(":"); } offset = 0; z = 0; for (w=0; w < words.length; w++) { if (typeof words[w] == 'string') { if (words[w] === 'Z') { // compressed zeros - write appropriate number of zero words for (z = 0; z < (8 - words.length+1); z++) { parts[w+z] = 0; } offset = z-1; } else { // parse hex to field to 16-bit value and write it in network byte-order parts[w+offset] = _htons(parseInt(words[w],16)); } } else { // parsed IPv4 words parts[w+offset] = words[w]; } } return [ (parts[1] << 16) | parts[0], (parts[3] << 16) | parts[2], (parts[5] << 16) | parts[4], (parts[7] << 16) | parts[6] ]; }; /** @param {number=} addrlen */ var writeSockaddr = (sa, family, addr, port, addrlen) => { switch (family) { case 2: addr = inetPton4(addr); zeroMemory(sa, 16); if (addrlen) { HEAP32[((addrlen)>>2)] = 16; } HEAP16[((sa)>>1)] = family; HEAP32[(((sa)+(4))>>2)] = addr; HEAP16[(((sa)+(2))>>1)] = _htons(port); break; case 10: addr = inetPton6(addr); zeroMemory(sa, 28); if (addrlen) { HEAP32[((addrlen)>>2)] = 28; } HEAP32[((sa)>>2)] = family; HEAP32[(((sa)+(8))>>2)] = addr[0]; HEAP32[(((sa)+(12))>>2)] = addr[1]; HEAP32[(((sa)+(16))>>2)] = addr[2]; HEAP32[(((sa)+(20))>>2)] = addr[3]; HEAP16[(((sa)+(2))>>1)] = _htons(port); break; default: return 5; } return 0; }; var DNS = { address_map:{ id:1, addrs:{ }, names:{ }, }, lookup_name(name) { // If the name is already a valid ipv4 / ipv6 address, don't generate a fake one. var res = inetPton4(name); if (res !== null) { return name; } res = inetPton6(name); if (res !== null) { return name; } // See if this name is already mapped. var addr; if (DNS.address_map.addrs[name]) { addr = DNS.address_map.addrs[name]; } else { var id = DNS.address_map.id++; assert(id < 65535, 'exceeded max address mappings of 65535'); addr = '172.29.' + (id & 0xff) + '.' + (id & 0xff00); DNS.address_map.names[addr] = name; DNS.address_map.addrs[name] = addr; } return addr; }, lookup_addr(addr) { if (DNS.address_map.names[addr]) { return DNS.address_map.names[addr]; } return null; }, }; function ___syscall_accept4(fd, addr, addrlen, flags, d1, d2) { try { var sock = getSocketFromFD(fd); var newsock = sock.sock_ops.accept(sock); if (addr) { var errno = writeSockaddr(addr, newsock.family, DNS.lookup_name(newsock.daddr), newsock.dport, addrlen); assert(!errno); } return newsock.stream.fd; } catch (e) { if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e; return -e.errno; } } var inetNtop4 = (addr) => { return (addr & 0xff) + '.' + ((addr >> 8) & 0xff) + '.' + ((addr >> 16) & 0xff) + '.' + ((addr >> 24) & 0xff) }; var inetNtop6 = (ints) => { // ref: http://www.ietf.org/rfc/rfc2373.txt - section 2.5.4 // Format for IPv4 compatible and mapped 128-bit IPv6 Addresses // 128-bits are split into eight 16-bit words // stored in network byte order (big-endian) // | 80 bits | 16 | 32 bits | // +-----------------------------------------------------------------+ // | 10 bytes | 2 | 4 bytes | // +--------------------------------------+--------------------------+ // + 5 words | 1 | 2 words | // +--------------------------------------+--------------------------+ // |0000..............................0000|0000| IPv4 ADDRESS | (compatible) // +--------------------------------------+----+---------------------+ // |0000..............................0000|FFFF| IPv4 ADDRESS | (mapped) // +--------------------------------------+----+---------------------+ var str = ""; var word = 0; var longest = 0; var lastzero = 0; var zstart = 0; var len = 0; var i = 0; var parts = [ ints[0] & 0xffff, (ints[0] >> 16), ints[1] & 0xffff, (ints[1] >> 16), ints[2] & 0xffff, (ints[2] >> 16), ints[3] & 0xffff, (ints[3] >> 16) ]; // Handle IPv4-compatible, IPv4-mapped, loopback and any/unspecified addresses var hasipv4 = true; var v4part = ""; // check if the 10 high-order bytes are all zeros (first 5 words) for (i = 0; i < 5; i++) { if (parts[i] !== 0) { hasipv4 = false; break; } } if (hasipv4) { // low-order 32-bits store an IPv4 address (bytes 13 to 16) (last 2 words) v4part = inetNtop4(parts[6] | (parts[7] << 16)); // IPv4-mapped IPv6 address if 16-bit value (bytes 11 and 12) == 0xFFFF (6th word) if (parts[5] === -1) { str = "::ffff:"; str += v4part; return str; } // IPv4-compatible IPv6 address if 16-bit value (bytes 11 and 12) == 0x0000 (6th word) if (parts[5] === 0) { str = "::"; //special case IPv6 addresses if (v4part === "0.0.0.0") v4part = ""; // any/unspecified address if (v4part === "0.0.0.1") v4part = "1";// loopback address str += v4part; return str; } } // Handle all other IPv6 addresses // first run to find the longest contiguous zero words for (word = 0; word < 8; word++) { if (parts[word] === 0) { if (word - lastzero > 1) { len = 0; } lastzero = word; len++; } if (len > longest) { longest = len; zstart = word - longest + 1; } } for (word = 0; word < 8; word++) { if (longest > 1) { // compress contiguous zeros - to produce "::" if (parts[word] === 0 && word >= zstart && word < (zstart + longest) ) { if (word === zstart) { str += ":"; if (zstart === 0) str += ":"; //leading zeros case } continue; } } // converts 16-bit words from big-endian to little-endian before converting to hex string str += Number(_ntohs(parts[word] & 0xffff)).toString(16); str += word < 7 ? ":" : ""; } return str; }; var readSockaddr = (sa, salen) => { // family / port offsets are common to both sockaddr_in and sockaddr_in6 var family = HEAP16[((sa)>>1)]; var port = _ntohs(HEAPU16[(((sa)+(2))>>1)]); var addr; switch (family) { case 2: if (salen !== 16) { return { errno: 28 }; } addr = HEAP32[(((sa)+(4))>>2)]; addr = inetNtop4(addr); break; case 10: if (salen !== 28) { return { errno: 28 }; } addr = [ HEAP32[(((sa)+(8))>>2)], HEAP32[(((sa)+(12))>>2)], HEAP32[(((sa)+(16))>>2)], HEAP32[(((sa)+(20))>>2)] ]; addr = inetNtop6(addr); break; default: return { errno: 5 }; } return { family: family, addr: addr, port: port }; }; /** @param {boolean=} allowNull */ var getSocketAddress = (addrp, addrlen, allowNull) => { if (allowNull && addrp === 0) return null; var info = readSockaddr(addrp, addrlen); if (info.errno) throw new FS.ErrnoError(info.errno); info.addr = DNS.lookup_addr(info.addr) || info.addr; return info; }; function ___syscall_bind(fd, addr, addrlen, d1, d2, d3) { try { var sock = getSocketFromFD(fd); var info = getSocketAddress(addr, addrlen); sock.sock_ops.bind(sock, info.addr, info.port); return 0; } catch (e) { if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e; return -e.errno; } } function ___syscall_chdir(path) { try { path = SYSCALLS.getStr(path); FS.chdir(path); return 0; } catch (e) { if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e; return -e.errno; } } function ___syscall_chmod(path, mode) { try { path = SYSCALLS.getStr(path); FS.chmod(path, mode); return 0; } catch (e) { if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e; return -e.errno; } } function ___syscall_connect(fd, addr, addrlen, d1, d2, d3) { try { var sock = getSocketFromFD(fd); var info = getSocketAddress(addr, addrlen); sock.sock_ops.connect(sock, info.addr, info.port); return 0; } catch (e) { if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e; return -e.errno; } } function ___syscall_dup(fd) { try { var old = SYSCALLS.getStreamFromFD(fd); return FS.createStream(old).fd; } catch (e) { if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e; return -e.errno; } } function ___syscall_dup3(fd, newfd, flags) { try { var old = SYSCALLS.getStreamFromFD(fd); assert(!flags); if (old.fd === newfd) return -28; var existing = FS.getStream(newfd); if (existing) FS.close(existing); return FS.createStream(old, newfd).fd; } catch (e) { if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e; return -e.errno; } } function ___syscall_faccessat(dirfd, path, amode, flags) { try { path = SYSCALLS.getStr(path); assert(flags === 0); path = SYSCALLS.calculateAt(dirfd, path); if (amode & ~7) { // need a valid mode return -28; } var lookup = FS.lookupPath(path, { follow: true }); var node = lookup.node; if (!node) { return -44; } var perms = ''; if (amode & 4) perms += 'r'; if (amode & 2) perms += 'w'; if (amode & 1) perms += 'x'; if (perms /* otherwise, they've just passed F_OK */ && FS.nodePermissions(node, perms)) { return -2; } return 0; } catch (e) { if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e; return -e.errno; } } function ___syscall_fchownat(dirfd, path, owner, group, flags) { try { path = SYSCALLS.getStr(path); var nofollow = flags & 256; flags = flags & (~256); assert(flags === 0); path = SYSCALLS.calculateAt(dirfd, path); (nofollow ? FS.lchown : FS.chown)(path, owner, group); return 0; } catch (e) { if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e; return -e.errno; } } function ___syscall_fcntl64(fd, cmd, varargs) { SYSCALLS.varargs = varargs; try { var stream = SYSCALLS.getStreamFromFD(fd); switch (cmd) { case 0: { var arg = SYSCALLS.get(); if (arg < 0) { return -28; } while (FS.streams[arg]) { arg++; } var newStream; newStream = FS.createStream(stream, arg); return newStream.fd; } case 1: case 2: return 0; // FD_CLOEXEC makes no sense for a single process. case 3: return stream.flags; case 4: { var arg = SYSCALLS.get(); stream.flags |= arg; return 0; } case 5: { var arg = SYSCALLS.getp(); var offset = 0; // We're always unlocked. HEAP16[(((arg)+(offset))>>1)] = 2; return 0; } case 6: case 7: return 0; // Pretend that the locking is successful. case 16: case 8: return -28; // These are for sockets. We don't have them fully implemented yet. case 9: // musl trusts getown return values, due to a bug where they must be, as they overlap with errors. just return -1 here, so fcntl() returns that, and we set errno ourselves. setErrNo(28); return -1; default: { return -28; } } } catch (e) { if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e; return -e.errno; } } function ___syscall_fdatasync(fd) { try { var stream = SYSCALLS.getStreamFromFD(fd); return 0; // we can't do anything synchronously; the in-memory FS is already synced to } catch (e) { if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e; return -e.errno; } } function ___syscall_fstat64(fd, buf) { try { var stream = SYSCALLS.getStreamFromFD(fd); return SYSCALLS.doStat(FS.stat, stream.path, buf); } catch (e) { if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e; return -e.errno; } } var convertI32PairToI53Checked = (lo, hi) => { assert(lo == (lo >>> 0) || lo == (lo|0)); // lo should either be a i32 or a u32 assert(hi === (hi|0)); // hi should be a i32 return ((hi + 0x200000) >>> 0 < 0x400001 - !!lo) ? (lo >>> 0) + hi * 4294967296 : NaN; }; function ___syscall_ftruncate64(fd,length_low, length_high) { var length = convertI32PairToI53Checked(length_low, length_high);; try { if (isNaN(length)) return 61; FS.ftruncate(fd, length); return 0; } catch (e) { if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e; return -e.errno; } ; } var stringToUTF8 = (str, outPtr, maxBytesToWrite) => { assert(typeof maxBytesToWrite == 'number', 'stringToUTF8(str, outPtr, maxBytesToWrite) is missing the third parameter that specifies the length of the output buffer!'); return stringToUTF8Array(str, HEAPU8, outPtr, maxBytesToWrite); }; function ___syscall_getcwd(buf, size) { try { if (size === 0) return -28; var cwd = FS.cwd(); var cwdLengthInBytes = lengthBytesUTF8(cwd) + 1; if (size < cwdLengthInBytes) return -68; stringToUTF8(cwd, buf, size); return cwdLengthInBytes; } catch (e) { if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e; return -e.errno; } } function ___syscall_getdents64(fd, dirp, count) { try { var stream = SYSCALLS.getStreamFromFD(fd) if (!stream.getdents) { stream.getdents = FS.readdir(stream.path); } var struct_size = 280; var pos = 0; var off = FS.llseek(stream, 0, 1); var idx = Math.floor(off / struct_size); while (idx < stream.getdents.length && pos + struct_size <= count) { var id; var type; var name = stream.getdents[idx]; if (name === '.') { id = stream.node.id; type = 4; // DT_DIR } else if (name === '..') { var lookup = FS.lookupPath(stream.path, { parent: true }); id = lookup.node.id; type = 4; // DT_DIR } else { var child = FS.lookupNode(stream.node, name); id = child.id; type = FS.isChrdev(child.mode) ? 2 : // DT_CHR, character device. FS.isDir(child.mode) ? 4 : // DT_DIR, directory. FS.isLink(child.mode) ? 10 : // DT_LNK, symbolic link. 8; // DT_REG, regular file. } assert(id); (tempI64 = [id>>>0,(tempDouble=id,(+(Math.abs(tempDouble))) >= 1.0 ? (tempDouble > 0.0 ? (+(Math.floor((tempDouble)/4294967296.0)))>>>0 : (~~((+(Math.ceil((tempDouble - +(((~~(tempDouble)))>>>0))/4294967296.0)))))>>>0) : 0)], HEAP32[((dirp + pos)>>2)] = tempI64[0],HEAP32[(((dirp + pos)+(4))>>2)] = tempI64[1]); (tempI64 = [(idx + 1) * struct_size>>>0,(tempDouble=(idx + 1) * struct_size,(+(Math.abs(tempDouble))) >= 1.0 ? (tempDouble > 0.0 ? (+(Math.floor((tempDouble)/4294967296.0)))>>>0 : (~~((+(Math.ceil((tempDouble - +(((~~(tempDouble)))>>>0))/4294967296.0)))))>>>0) : 0)], HEAP32[(((dirp + pos)+(8))>>2)] = tempI64[0],HEAP32[(((dirp + pos)+(12))>>2)] = tempI64[1]); HEAP16[(((dirp + pos)+(16))>>1)] = 280; HEAP8[(((dirp + pos)+(18))>>0)] = type; stringToUTF8(name, dirp + pos + 19, 256); pos += struct_size; idx += 1; } FS.llseek(stream, idx * struct_size, 0); return pos; } catch (e) { if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e; return -e.errno; } } function ___syscall_getpeername(fd, addr, addrlen, d1, d2, d3) { try { var sock = getSocketFromFD(fd); if (!sock.daddr) { return -53; // The socket is not connected. } var errno = writeSockaddr(addr, sock.family, DNS.lookup_name(sock.daddr), sock.dport, addrlen); assert(!errno); return 0; } catch (e) { if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e; return -e.errno; } } function ___syscall_getsockname(fd, addr, addrlen, d1, d2, d3) { try { var sock = getSocketFromFD(fd); // TODO: sock.saddr should never be undefined, see TODO in websocket_sock_ops.getname var errno = writeSockaddr(addr, sock.family, DNS.lookup_name(sock.saddr || '0.0.0.0'), sock.sport, addrlen); assert(!errno); return 0; } catch (e) { if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e; return -e.errno; } } function ___syscall_getsockopt(fd, level, optname, optval, optlen, d1) { try { var sock = getSocketFromFD(fd); // Minimal getsockopt aimed at resolving https://github.com/emscripten-core/emscripten/issues/2211 // so only supports SOL_SOCKET with SO_ERROR. if (level === 1) { if (optname === 4) { HEAP32[((optval)>>2)] = sock.error; HEAP32[((optlen)>>2)] = 4; sock.error = null; // Clear the error (The SO_ERROR option obtains and then clears this field). return 0; } } return -50; // The option is unknown at the level indicated. } catch (e) { if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e; return -e.errno; } } function ___syscall_ioctl(fd, op, varargs) { SYSCALLS.varargs = varargs; try { var stream = SYSCALLS.getStreamFromFD(fd); switch (op) { case 21509: { if (!stream.tty) return -59; return 0; } case 21505: { if (!stream.tty) return -59; if (stream.tty.ops.ioctl_tcgets) { var termios = stream.tty.ops.ioctl_tcgets(stream); var argp = SYSCALLS.getp(); HEAP32[((argp)>>2)] = termios.c_iflag || 0; HEAP32[(((argp)+(4))>>2)] = termios.c_oflag || 0; HEAP32[(((argp)+(8))>>2)] = termios.c_cflag || 0; HEAP32[(((argp)+(12))>>2)] = termios.c_lflag || 0; for (var i = 0; i < 32; i++) { HEAP8[(((argp + i)+(17))>>0)] = termios.c_cc[i] || 0; } return 0; } return 0; } case 21510: case 21511: case 21512: { if (!stream.tty) return -59; return 0; // no-op, not actually adjusting terminal settings } case 21506: case 21507: case 21508: { if (!stream.tty) return -59; if (stream.tty.ops.ioctl_tcsets) { var argp = SYSCALLS.getp(); var c_iflag = HEAP32[((argp)>>2)]; var c_oflag = HEAP32[(((argp)+(4))>>2)]; var c_cflag = HEAP32[(((argp)+(8))>>2)]; var c_lflag = HEAP32[(((argp)+(12))>>2)]; var c_cc = [] for (var i = 0; i < 32; i++) { c_cc.push(HEAP8[(((argp + i)+(17))>>0)]); } return stream.tty.ops.ioctl_tcsets(stream.tty, op, { c_iflag, c_oflag, c_cflag, c_lflag, c_cc }); } return 0; // no-op, not actually adjusting terminal settings } case 21519: { if (!stream.tty) return -59; var argp = SYSCALLS.getp(); HEAP32[((argp)>>2)] = 0; return 0; } case 21520: { if (!stream.tty) return -59; return -28; // not supported } case 21531: { var argp = SYSCALLS.getp(); return FS.ioctl(stream, op, argp); } case 21523: { // TODO: in theory we should write to the winsize struct that gets // passed in, but for now musl doesn't read anything on it if (!stream.tty) return -59; if (stream.tty.ops.ioctl_tiocgwinsz) { var winsize = stream.tty.ops.ioctl_tiocgwinsz(stream.tty); var argp = SYSCALLS.getp(); HEAP16[((argp)>>1)] = winsize[0]; HEAP16[(((argp)+(2))>>1)] = winsize[1]; } return 0; } case 21524: { // TODO: technically, this ioctl call should change the window size. // but, since emscripten doesn't have any concept of a terminal window // yet, we'll just silently throw it away as we do TIOCGWINSZ if (!stream.tty) return -59; return 0; } case 21515: { if (!stream.tty) return -59; return 0; } default: return -28; // not supported } } catch (e) { if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e; return -e.errno; } } function ___syscall_listen(fd, backlog) { try { var sock = getSocketFromFD(fd); sock.sock_ops.listen(sock, backlog); return 0; } catch (e) { if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e; return -e.errno; } } function ___syscall_lstat64(path, buf) { try { path = SYSCALLS.getStr(path); return SYSCALLS.doStat(FS.lstat, path, buf); } catch (e) { if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e; return -e.errno; } } function ___syscall_mkdirat(dirfd, path, mode) { try { path = SYSCALLS.getStr(path); path = SYSCALLS.calculateAt(dirfd, path); // remove a trailing slash, if one - /a/b/ has basename of '', but // we want to create b in the context of this function path = PATH.normalize(path); if (path[path.length-1] === '/') path = path.substr(0, path.length-1); FS.mkdir(path, mode, 0); return 0; } catch (e) { if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e; return -e.errno; } } function ___syscall_newfstatat(dirfd, path, buf, flags) { try { path = SYSCALLS.getStr(path); var nofollow = flags & 256; var allowEmpty = flags & 4096; flags = flags & (~6400); assert(!flags, `unknown flags in __syscall_newfstatat: ${flags}`); path = SYSCALLS.calculateAt(dirfd, path, allowEmpty); return SYSCALLS.doStat(nofollow ? FS.lstat : FS.stat, path, buf); } catch (e) { if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e; return -e.errno; } } function ___syscall_openat(dirfd, path, flags, varargs) { SYSCALLS.varargs = varargs; try { path = SYSCALLS.getStr(path); path = SYSCALLS.calculateAt(dirfd, path); var mode = varargs ? SYSCALLS.get() : 0; return FS.open(path, flags, mode).fd; } catch (e) { if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e; return -e.errno; } } var PIPEFS = { BUCKET_BUFFER_SIZE:8192, mount(mount) { // Do not pollute the real root directory or its child nodes with pipes // Looks like it is OK to create another pseudo-root node not linked to the FS.root hierarchy this way return FS.createNode(null, '/', 16384 | 511 /* 0777 */, 0); }, createPipe() { var pipe = { buckets: [], // refcnt 2 because pipe has a read end and a write end. We need to be // able to read from the read end after write end is closed. refcnt : 2, }; pipe.buckets.push({ buffer: new Uint8Array(PIPEFS.BUCKET_BUFFER_SIZE), offset: 0, roffset: 0 }); var rName = PIPEFS.nextname(); var wName = PIPEFS.nextname(); var rNode = FS.createNode(PIPEFS.root, rName, 4096, 0); var wNode = FS.createNode(PIPEFS.root, wName, 4096, 0); rNode.pipe = pipe; wNode.pipe = pipe; var readableStream = FS.createStream({ path: rName, node: rNode, flags: 0, seekable: false, stream_ops: PIPEFS.stream_ops }); rNode.stream = readableStream; var writableStream = FS.createStream({ path: wName, node: wNode, flags: 1, seekable: false, stream_ops: PIPEFS.stream_ops }); wNode.stream = writableStream; return { readable_fd: readableStream.fd, writable_fd: writableStream.fd }; }, stream_ops:{ poll(stream) { var pipe = stream.node.pipe; if ((stream.flags & 2097155) === 1) { return (256 | 4); } if (pipe.buckets.length > 0) { for (var i = 0; i < pipe.buckets.length; i++) { var bucket = pipe.buckets[i]; if (bucket.offset - bucket.roffset > 0) { return (64 | 1); } } } return 0; }, ioctl(stream, request, varargs) { return 28; }, fsync(stream) { return 28; }, read(stream, buffer, offset, length, position /* ignored */) { var pipe = stream.node.pipe; var currentLength = 0; for (var i = 0; i < pipe.buckets.length; i++) { var bucket = pipe.buckets[i]; currentLength += bucket.offset - bucket.roffset; } assert(buffer instanceof ArrayBuffer || ArrayBuffer.isView(buffer)); var data = buffer.subarray(offset, offset + length); if (length <= 0) { return 0; } if (currentLength == 0) { // Behave as if the read end is always non-blocking throw new FS.ErrnoError(6); } var toRead = Math.min(currentLength, length); var totalRead = toRead; var toRemove = 0; for (var i = 0; i < pipe.buckets.length; i++) { var currBucket = pipe.buckets[i]; var bucketSize = currBucket.offset - currBucket.roffset; if (toRead <= bucketSize) { var tmpSlice = currBucket.buffer.subarray(currBucket.roffset, currBucket.offset); if (toRead < bucketSize) { tmpSlice = tmpSlice.subarray(0, toRead); currBucket.roffset += toRead; } else { toRemove++; } data.set(tmpSlice); break; } else { var tmpSlice = currBucket.buffer.subarray(currBucket.roffset, currBucket.offset); data.set(tmpSlice); data = data.subarray(tmpSlice.byteLength); toRead -= tmpSlice.byteLength; toRemove++; } } if (toRemove && toRemove == pipe.buckets.length) { // Do not generate excessive garbage in use cases such as // write several bytes, read everything, write several bytes, read everything... toRemove--; pipe.buckets[toRemove].offset = 0; pipe.buckets[toRemove].roffset = 0; } pipe.buckets.splice(0, toRemove); return totalRead; }, write(stream, buffer, offset, length, position /* ignored */) { var pipe = stream.node.pipe; assert(buffer instanceof ArrayBuffer || ArrayBuffer.isView(buffer)); var data = buffer.subarray(offset, offset + length); var dataLen = data.byteLength; if (dataLen <= 0) { return 0; } var currBucket = null; if (pipe.buckets.length == 0) { currBucket = { buffer: new Uint8Array(PIPEFS.BUCKET_BUFFER_SIZE), offset: 0, roffset: 0 }; pipe.buckets.push(currBucket); } else { currBucket = pipe.buckets[pipe.buckets.length - 1]; } assert(currBucket.offset <= PIPEFS.BUCKET_BUFFER_SIZE); var freeBytesInCurrBuffer = PIPEFS.BUCKET_BUFFER_SIZE - currBucket.offset; if (freeBytesInCurrBuffer >= dataLen) { currBucket.buffer.set(data, currBucket.offset); currBucket.offset += dataLen; return dataLen; } else if (freeBytesInCurrBuffer > 0) { currBucket.buffer.set(data.subarray(0, freeBytesInCurrBuffer), currBucket.offset); currBucket.offset += freeBytesInCurrBuffer; data = data.subarray(freeBytesInCurrBuffer, data.byteLength); } var numBuckets = (data.byteLength / PIPEFS.BUCKET_BUFFER_SIZE) | 0; var remElements = data.byteLength % PIPEFS.BUCKET_BUFFER_SIZE; for (var i = 0; i < numBuckets; i++) { var newBucket = { buffer: new Uint8Array(PIPEFS.BUCKET_BUFFER_SIZE), offset: PIPEFS.BUCKET_BUFFER_SIZE, roffset: 0 }; pipe.buckets.push(newBucket); newBucket.buffer.set(data.subarray(0, PIPEFS.BUCKET_BUFFER_SIZE)); data = data.subarray(PIPEFS.BUCKET_BUFFER_SIZE, data.byteLength); } if (remElements > 0) { var newBucket = { buffer: new Uint8Array(PIPEFS.BUCKET_BUFFER_SIZE), offset: data.byteLength, roffset: 0 }; pipe.buckets.push(newBucket); newBucket.buffer.set(data); } return dataLen; }, close(stream) { var pipe = stream.node.pipe; pipe.refcnt--; if (pipe.refcnt === 0) { pipe.buckets = null; } }, }, nextname() { if (!PIPEFS.nextname.current) { PIPEFS.nextname.current = 0; } return 'pipe[' + (PIPEFS.nextname.current++) + ']'; }, }; function ___syscall_pipe(fdPtr) { try { if (fdPtr == 0) { throw new FS.ErrnoError(21); } var res = PIPEFS.createPipe(); HEAP32[((fdPtr)>>2)] = res.readable_fd; HEAP32[(((fdPtr)+(4))>>2)] = res.writable_fd; return 0; } catch (e) { if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e; return -e.errno; } } function ___syscall_poll(fds, nfds, timeout) { try { var nonzero = 0; for (var i = 0; i < nfds; i++) { var pollfd = fds + 8 * i; var fd = HEAP32[((pollfd)>>2)]; var events = HEAP16[(((pollfd)+(4))>>1)]; var mask = 32; var stream = FS.getStream(fd); if (stream) { mask = SYSCALLS.DEFAULT_POLLMASK; if (stream.stream_ops.poll) { mask = stream.stream_ops.poll(stream, -1); } } mask &= events | 8 | 16; if (mask) nonzero++; HEAP16[(((pollfd)+(6))>>1)] = mask; } return nonzero; } catch (e) { if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e; return -e.errno; } } function ___syscall_readlinkat(dirfd, path, buf, bufsize) { try { path = SYSCALLS.getStr(path); path = SYSCALLS.calculateAt(dirfd, path); if (bufsize <= 0) return -28; var ret = FS.readlink(path); var len = Math.min(bufsize, lengthBytesUTF8(ret)); var endChar = HEAP8[buf+len]; stringToUTF8(ret, buf, bufsize+1); // readlink is one of the rare functions that write out a C string, but does never append a null to the output buffer(!) // stringToUTF8() always appends a null byte, so restore the character under the null byte after the write. HEAP8[buf+len] = endChar; return len; } catch (e) { if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e; return -e.errno; } } function ___syscall_recvfrom(fd, buf, len, flags, addr, addrlen) { try { var sock = getSocketFromFD(fd); var msg = sock.sock_ops.recvmsg(sock, len); if (!msg) return 0; // socket is closed if (addr) { var errno = writeSockaddr(addr, sock.family, DNS.lookup_name(msg.addr), msg.port, addrlen); assert(!errno); } HEAPU8.set(msg.buffer, buf); return msg.buffer.byteLength; } catch (e) { if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e; return -e.errno; } } function ___syscall_renameat(olddirfd, oldpath, newdirfd, newpath) { try { oldpath = SYSCALLS.getStr(oldpath); newpath = SYSCALLS.getStr(newpath); oldpath = SYSCALLS.calculateAt(olddirfd, oldpath); newpath = SYSCALLS.calculateAt(newdirfd, newpath); FS.rename(oldpath, newpath); return 0; } catch (e) { if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e; return -e.errno; } } function ___syscall_rmdir(path) { try { path = SYSCALLS.getStr(path); FS.rmdir(path); return 0; } catch (e) { if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e; return -e.errno; } } function ___syscall_sendto(fd, message, length, flags, addr, addr_len) { try { var sock = getSocketFromFD(fd); var dest = getSocketAddress(addr, addr_len, true); if (!dest) { // send, no address provided return FS.write(sock.stream, HEAP8, message, length); } // sendto an address return sock.sock_ops.sendmsg(sock, HEAP8, message, length, dest.addr, dest.port); } catch (e) { if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e; return -e.errno; } } function ___syscall_socket(domain, type, protocol) { try { var sock = SOCKFS.createSocket(domain, type, protocol); assert(sock.stream.fd < 64); // XXX ? select() assumes socket fd values are in 0..63 return sock.stream.fd; } catch (e) { if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e; return -e.errno; } } function ___syscall_stat64(path, buf) { try { path = SYSCALLS.getStr(path); return SYSCALLS.doStat(FS.stat, path, buf); } catch (e) { if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e; return -e.errno; } } function ___syscall_statfs64(path, size, buf) { try { path = SYSCALLS.getStr(path); assert(size === 64); // NOTE: None of the constants here are true. We're just returning safe and // sane values. HEAP32[(((buf)+(4))>>2)] = 4096; HEAP32[(((buf)+(40))>>2)] = 4096; HEAP32[(((buf)+(8))>>2)] = 1000000; HEAP32[(((buf)+(12))>>2)] = 500000; HEAP32[(((buf)+(16))>>2)] = 500000; HEAP32[(((buf)+(20))>>2)] = FS.nextInode; HEAP32[(((buf)+(24))>>2)] = 1000000; HEAP32[(((buf)+(28))>>2)] = 42; HEAP32[(((buf)+(44))>>2)] = 2; // ST_NOSUID HEAP32[(((buf)+(36))>>2)] = 255; return 0; } catch (e) { if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e; return -e.errno; } } function ___syscall_symlink(target, linkpath) { try { target = SYSCALLS.getStr(target); linkpath = SYSCALLS.getStr(linkpath); FS.symlink(target, linkpath); return 0; } catch (e) { if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e; return -e.errno; } } function ___syscall_unlinkat(dirfd, path, flags) { try { path = SYSCALLS.getStr(path); path = SYSCALLS.calculateAt(dirfd, path); if (flags === 0) { FS.unlink(path); } else if (flags === 512) { FS.rmdir(path); } else { abort('Invalid flags passed to unlinkat'); } return 0; } catch (e) { if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e; return -e.errno; } } var readI53FromI64 = (ptr) => { return HEAPU32[((ptr)>>2)] + HEAP32[(((ptr)+(4))>>2)] * 4294967296; }; function ___syscall_utimensat(dirfd, path, times, flags) { try { path = SYSCALLS.getStr(path); assert(flags === 0); path = SYSCALLS.calculateAt(dirfd, path, true); if (!times) { var atime = Date.now(); var mtime = atime; } else { var seconds = readI53FromI64(times); var nanoseconds = HEAP32[(((times)+(8))>>2)]; atime = (seconds*1000) + (nanoseconds/(1000*1000)); times += 16; seconds = readI53FromI64(times); nanoseconds = HEAP32[(((times)+(8))>>2)]; mtime = (seconds*1000) + (nanoseconds/(1000*1000)); } FS.utime(path, atime, mtime); return 0; } catch (e) { if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e; return -e.errno; } } var nowIsMonotonic = true;; var __emscripten_get_now_is_monotonic = () => nowIsMonotonic; var __emscripten_throw_longjmp = () => { throw Infinity; }; function __gmtime_js(time_low, time_high,tmPtr) { var time = convertI32PairToI53Checked(time_low, time_high);; var date = new Date(time * 1000); HEAP32[((tmPtr)>>2)] = date.getUTCSeconds(); HEAP32[(((tmPtr)+(4))>>2)] = date.getUTCMinutes(); HEAP32[(((tmPtr)+(8))>>2)] = date.getUTCHours(); HEAP32[(((tmPtr)+(12))>>2)] = date.getUTCDate(); HEAP32[(((tmPtr)+(16))>>2)] = date.getUTCMonth(); HEAP32[(((tmPtr)+(20))>>2)] = date.getUTCFullYear()-1900; HEAP32[(((tmPtr)+(24))>>2)] = date.getUTCDay(); var start = Date.UTC(date.getUTCFullYear(), 0, 1, 0, 0, 0, 0); var yday = ((date.getTime() - start) / (1000 * 60 * 60 * 24))|0; HEAP32[(((tmPtr)+(28))>>2)] = yday; ; } var isLeapYear = (year) => { return year%4 === 0 && (year%100 !== 0 || year%400 === 0); }; var MONTH_DAYS_LEAP_CUMULATIVE = [0,31,60,91,121,152,182,213,244,274,305,335]; var MONTH_DAYS_REGULAR_CUMULATIVE = [0,31,59,90,120,151,181,212,243,273,304,334]; var ydayFromDate = (date) => { var leap = isLeapYear(date.getFullYear()); var monthDaysCumulative = (leap ? MONTH_DAYS_LEAP_CUMULATIVE : MONTH_DAYS_REGULAR_CUMULATIVE); var yday = monthDaysCumulative[date.getMonth()] + date.getDate() - 1; // -1 since it's days since Jan 1 return yday; }; function __localtime_js(time_low, time_high,tmPtr) { var time = convertI32PairToI53Checked(time_low, time_high);; var date = new Date(time*1000); HEAP32[((tmPtr)>>2)] = date.getSeconds(); HEAP32[(((tmPtr)+(4))>>2)] = date.getMinutes(); HEAP32[(((tmPtr)+(8))>>2)] = date.getHours(); HEAP32[(((tmPtr)+(12))>>2)] = date.getDate(); HEAP32[(((tmPtr)+(16))>>2)] = date.getMonth(); HEAP32[(((tmPtr)+(20))>>2)] = date.getFullYear()-1900; HEAP32[(((tmPtr)+(24))>>2)] = date.getDay(); var yday = ydayFromDate(date)|0; HEAP32[(((tmPtr)+(28))>>2)] = yday; HEAP32[(((tmPtr)+(36))>>2)] = -(date.getTimezoneOffset() * 60); // Attention: DST is in December in South, and some regions don't have DST at all. var start = new Date(date.getFullYear(), 0, 1); var summerOffset = new Date(date.getFullYear(), 6, 1).getTimezoneOffset(); var winterOffset = start.getTimezoneOffset(); var dst = (summerOffset != winterOffset && date.getTimezoneOffset() == Math.min(winterOffset, summerOffset))|0; HEAP32[(((tmPtr)+(32))>>2)] = dst; ; } var __mktime_js = function(tmPtr) { var ret = (() => { var date = new Date(HEAP32[(((tmPtr)+(20))>>2)] + 1900, HEAP32[(((tmPtr)+(16))>>2)], HEAP32[(((tmPtr)+(12))>>2)], HEAP32[(((tmPtr)+(8))>>2)], HEAP32[(((tmPtr)+(4))>>2)], HEAP32[((tmPtr)>>2)], 0); // There's an ambiguous hour when the time goes back; the tm_isdst field is // used to disambiguate it. Date() basically guesses, so we fix it up if it // guessed wrong, or fill in tm_isdst with the guess if it's -1. var dst = HEAP32[(((tmPtr)+(32))>>2)]; var guessedOffset = date.getTimezoneOffset(); var start = new Date(date.getFullYear(), 0, 1); var summerOffset = new Date(date.getFullYear(), 6, 1).getTimezoneOffset(); var winterOffset = start.getTimezoneOffset(); var dstOffset = Math.min(winterOffset, summerOffset); // DST is in December in South if (dst < 0) { // Attention: some regions don't have DST at all. HEAP32[(((tmPtr)+(32))>>2)] = Number(summerOffset != winterOffset && dstOffset == guessedOffset); } else if ((dst > 0) != (dstOffset == guessedOffset)) { var nonDstOffset = Math.max(winterOffset, summerOffset); var trueOffset = dst > 0 ? dstOffset : nonDstOffset; // Don't try setMinutes(date.getMinutes() + ...) -- it's messed up. date.setTime(date.getTime() + (trueOffset - guessedOffset)*60000); } HEAP32[(((tmPtr)+(24))>>2)] = date.getDay(); var yday = ydayFromDate(date)|0; HEAP32[(((tmPtr)+(28))>>2)] = yday; // To match expected behavior, update fields from date HEAP32[((tmPtr)>>2)] = date.getSeconds(); HEAP32[(((tmPtr)+(4))>>2)] = date.getMinutes(); HEAP32[(((tmPtr)+(8))>>2)] = date.getHours(); HEAP32[(((tmPtr)+(12))>>2)] = date.getDate(); HEAP32[(((tmPtr)+(16))>>2)] = date.getMonth(); HEAP32[(((tmPtr)+(20))>>2)] = date.getYear(); return date.getTime() / 1000; })(); return (setTempRet0((tempDouble=ret,(+(Math.abs(tempDouble))) >= 1.0 ? (tempDouble > 0.0 ? (+(Math.floor((tempDouble)/4294967296.0)))>>>0 : (~~((+(Math.ceil((tempDouble - +(((~~(tempDouble)))>>>0))/4294967296.0)))))>>>0) : 0)), ret>>>0); }; function __mmap_js(len,prot,flags,fd,offset_low, offset_high,allocated,addr) { var offset = convertI32PairToI53Checked(offset_low, offset_high);; try { if (isNaN(offset)) return 61; var stream = SYSCALLS.getStreamFromFD(fd); var res = FS.mmap(stream, len, offset, prot, flags); var ptr = res.ptr; HEAP32[((allocated)>>2)] = res.allocated; HEAPU32[((addr)>>2)] = ptr; return 0; } catch (e) { if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e; return -e.errno; } ; } function __munmap_js(addr,len,prot,flags,fd,offset_low, offset_high) { var offset = convertI32PairToI53Checked(offset_low, offset_high);; try { if (isNaN(offset)) return 61; var stream = SYSCALLS.getStreamFromFD(fd); if (prot & 2) { SYSCALLS.doMsync(addr, stream, len, flags, offset); } FS.munmap(stream); // implicitly return 0 } catch (e) { if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e; return -e.errno; } ; } var timers = { }; var handleException = (e) => { // Certain exception types we do not treat as errors since they are used for // internal control flow. // 1. ExitStatus, which is thrown by exit() // 2. "unwind", which is thrown by emscripten_unwind_to_js_event_loop() and others // that wish to return to JS event loop. if (e instanceof ExitStatus || e == 'unwind') { return EXITSTATUS; } checkStackCookie(); if (e instanceof WebAssembly.RuntimeError) { if (_emscripten_stack_get_current() <= 0) { err('Stack overflow detected. You can try increasing -sSTACK_SIZE (currently set to 65536)'); } } quit_(1, e); }; var _proc_exit = (code) => { EXITSTATUS = code; if (!keepRuntimeAlive()) { if (Module['onExit']) Module['onExit'](code); ABORT = true; } quit_(code, new ExitStatus(code)); }; /** @suppress {duplicate } */ /** @param {boolean|number=} implicit */ var exitJS = (status, implicit) => { EXITSTATUS = status; checkUnflushedContent(); // if exit() was called explicitly, warn the user if the runtime isn't actually being shut down if (keepRuntimeAlive() && !implicit) { var msg = `program exited (with status: ${status}), but keepRuntimeAlive() is set (counter=${runtimeKeepaliveCounter}) due to an async operation, so halting execution but not exiting the runtime or preventing further async execution (you can use emscripten_force_exit, if you want to force a true shutdown)`; readyPromiseReject(msg); err(msg); } _proc_exit(status); }; var _exit = exitJS; var maybeExit = () => { if (!keepRuntimeAlive()) { try { _exit(EXITSTATUS); } catch (e) { handleException(e); } } }; var callUserCallback = (func) => { if (ABORT) { err('user callback triggered after runtime exited or application aborted. Ignoring.'); return; } try { func(); maybeExit(); } catch (e) { handleException(e); } }; var _emscripten_get_now; // Modern environment where performance.now() is supported: // N.B. a shorter form "_emscripten_get_now = performance.now;" is // unfortunately not allowed even in current browsers (e.g. FF Nightly 75). _emscripten_get_now = () => performance.now(); ; var __setitimer_js = (which, timeout_ms) => { // First, clear any existing timer. if (timers[which]) { clearTimeout(timers[which].id); delete timers[which]; } // A timeout of zero simply cancels the current timeout so we have nothing // more to do. if (!timeout_ms) return 0; var id = setTimeout(() => { assert(which in timers); delete timers[which]; callUserCallback(() => __emscripten_timeout(which, _emscripten_get_now())); }, timeout_ms); timers[which] = { id, timeout_ms }; return 0; }; var stringToNewUTF8 = (str) => { var size = lengthBytesUTF8(str) + 1; var ret = _malloc(size); if (ret) stringToUTF8(str, ret, size); return ret; }; var __tzset_js = (timezone, daylight, tzname) => { // TODO: Use (malleable) environment variables instead of system settings. var currentYear = new Date().getFullYear(); var winter = new Date(currentYear, 0, 1); var summer = new Date(currentYear, 6, 1); var winterOffset = winter.getTimezoneOffset(); var summerOffset = summer.getTimezoneOffset(); // Local standard timezone offset. Local standard time is not adjusted for daylight savings. // This code uses the fact that getTimezoneOffset returns a greater value during Standard Time versus Daylight Saving Time (DST). // Thus it determines the expected output during Standard Time, and it compares whether the output of the given date the same (Standard) or less (DST). var stdTimezoneOffset = Math.max(winterOffset, summerOffset); // timezone is specified as seconds west of UTC ("The external variable // `timezone` shall be set to the difference, in seconds, between // Coordinated Universal Time (UTC) and local standard time."), the same // as returned by stdTimezoneOffset. // See http://pubs.opengroup.org/onlinepubs/009695399/functions/tzset.html HEAPU32[((timezone)>>2)] = stdTimezoneOffset * 60; HEAP32[((daylight)>>2)] = Number(winterOffset != summerOffset); function extractZone(date) { var match = date.toTimeString().match(/\(([A-Za-z ]+)\)$/); return match ? match[1] : "GMT"; }; var winterName = extractZone(winter); var summerName = extractZone(summer); var winterNamePtr = stringToNewUTF8(winterName); var summerNamePtr = stringToNewUTF8(summerName); if (summerOffset < winterOffset) { // Northern hemisphere HEAPU32[((tzname)>>2)] = winterNamePtr; HEAPU32[(((tzname)+(4))>>2)] = summerNamePtr; } else { HEAPU32[((tzname)>>2)] = summerNamePtr; HEAPU32[(((tzname)+(4))>>2)] = winterNamePtr; } }; var _abort = () => { abort('native code called abort()'); }; var _emscripten_date_now = () => Date.now(); var _emscripten_err = (str) => err(UTF8ToString(str)); var getHeapMax = () => HEAPU8.length; var _emscripten_get_heap_max = () => getHeapMax(); var _emscripten_memcpy_js = (dest, src, num) => HEAPU8.copyWithin(dest, src, src + num); var abortOnCannotGrowMemory = (requestedSize) => { abort(`Cannot enlarge memory arrays to size ${requestedSize} bytes (OOM). Either (1) compile with -sINITIAL_MEMORY=X with X higher than the current value ${HEAP8.length}, (2) compile with -sALLOW_MEMORY_GROWTH which allows increasing the size at runtime, or (3) if you want malloc to return NULL (0) instead of this abort, compile with -sABORTING_MALLOC=0`); }; var _emscripten_resize_heap = (requestedSize) => { var oldSize = HEAPU8.length; // With CAN_ADDRESS_2GB or MEMORY64, pointers are already unsigned. requestedSize >>>= 0; abortOnCannotGrowMemory(requestedSize); }; var ENV = { }; var getExecutableName = () => { return thisProgram || './this.program'; }; var getEnvStrings = () => { if (!getEnvStrings.strings) { // Default values. // Browser language detection #8751 var lang = ((typeof navigator == 'object' && navigator.languages && navigator.languages[0]) || 'C').replace('-', '_') + '.UTF-8'; var env = { 'USER': 'web_user', 'LOGNAME': 'web_user', 'PATH': '/', 'PWD': '/', 'HOME': '/home/web_user', 'LANG': lang, '_': getExecutableName() }; // Apply the user-provided values, if any. for (var x in ENV) { // x is a key in ENV; if ENV[x] is undefined, that means it was // explicitly set to be so. We allow user code to do that to // force variables with default values to remain unset. if (ENV[x] === undefined) delete env[x]; else env[x] = ENV[x]; } var strings = []; for (var x in env) { strings.push(`${x}=${env[x]}`); } getEnvStrings.strings = strings; } return getEnvStrings.strings; }; var stringToAscii = (str, buffer) => { for (var i = 0; i < str.length; ++i) { assert(str.charCodeAt(i) === (str.charCodeAt(i) & 0xff)); HEAP8[((buffer++)>>0)] = str.charCodeAt(i); } // Null-terminate the string HEAP8[((buffer)>>0)] = 0; }; var _environ_get = (__environ, environ_buf) => { var bufSize = 0; getEnvStrings().forEach((string, i) => { var ptr = environ_buf + bufSize; HEAPU32[(((__environ)+(i*4))>>2)] = ptr; stringToAscii(string, ptr); bufSize += string.length + 1; }); return 0; }; var _environ_sizes_get = (penviron_count, penviron_buf_size) => { var strings = getEnvStrings(); HEAPU32[((penviron_count)>>2)] = strings.length; var bufSize = 0; strings.forEach((string) => bufSize += string.length + 1); HEAPU32[((penviron_buf_size)>>2)] = bufSize; return 0; }; function _fd_close(fd) { try { var stream = SYSCALLS.getStreamFromFD(fd); FS.close(stream); return 0; } catch (e) { if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e; return e.errno; } } function _fd_fdstat_get(fd, pbuf) { try { var rightsBase = 0; var rightsInheriting = 0; var flags = 0; { var stream = SYSCALLS.getStreamFromFD(fd); // All character devices are terminals (other things a Linux system would // assume is a character device, like the mouse, we have special APIs for). var type = stream.tty ? 2 : FS.isDir(stream.mode) ? 3 : FS.isLink(stream.mode) ? 7 : 4; } HEAP8[((pbuf)>>0)] = type; HEAP16[(((pbuf)+(2))>>1)] = flags; (tempI64 = [rightsBase>>>0,(tempDouble=rightsBase,(+(Math.abs(tempDouble))) >= 1.0 ? (tempDouble > 0.0 ? (+(Math.floor((tempDouble)/4294967296.0)))>>>0 : (~~((+(Math.ceil((tempDouble - +(((~~(tempDouble)))>>>0))/4294967296.0)))))>>>0) : 0)], HEAP32[(((pbuf)+(8))>>2)] = tempI64[0],HEAP32[(((pbuf)+(12))>>2)] = tempI64[1]); (tempI64 = [rightsInheriting>>>0,(tempDouble=rightsInheriting,(+(Math.abs(tempDouble))) >= 1.0 ? (tempDouble > 0.0 ? (+(Math.floor((tempDouble)/4294967296.0)))>>>0 : (~~((+(Math.ceil((tempDouble - +(((~~(tempDouble)))>>>0))/4294967296.0)))))>>>0) : 0)], HEAP32[(((pbuf)+(16))>>2)] = tempI64[0],HEAP32[(((pbuf)+(20))>>2)] = tempI64[1]); return 0; } catch (e) { if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e; return e.errno; } } /** @param {number=} offset */ var doReadv = (stream, iov, iovcnt, offset) => { var ret = 0; for (var i = 0; i < iovcnt; i++) { var ptr = HEAPU32[((iov)>>2)]; var len = HEAPU32[(((iov)+(4))>>2)]; iov += 8; var curr = FS.read(stream, HEAP8, ptr, len, offset); if (curr < 0) return -1; ret += curr; if (curr < len) break; // nothing more to read if (typeof offset !== 'undefined') { offset += curr; } } return ret; }; function _fd_read(fd, iov, iovcnt, pnum) { try { var stream = SYSCALLS.getStreamFromFD(fd); var num = doReadv(stream, iov, iovcnt); HEAPU32[((pnum)>>2)] = num; return 0; } catch (e) { if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e; return e.errno; } } function _fd_seek(fd,offset_low, offset_high,whence,newOffset) { var offset = convertI32PairToI53Checked(offset_low, offset_high);; try { if (isNaN(offset)) return 61; var stream = SYSCALLS.getStreamFromFD(fd); FS.llseek(stream, offset, whence); (tempI64 = [stream.position>>>0,(tempDouble=stream.position,(+(Math.abs(tempDouble))) >= 1.0 ? (tempDouble > 0.0 ? (+(Math.floor((tempDouble)/4294967296.0)))>>>0 : (~~((+(Math.ceil((tempDouble - +(((~~(tempDouble)))>>>0))/4294967296.0)))))>>>0) : 0)], HEAP32[((newOffset)>>2)] = tempI64[0],HEAP32[(((newOffset)+(4))>>2)] = tempI64[1]); if (stream.getdents && offset === 0 && whence === 0) stream.getdents = null; // reset readdir state return 0; } catch (e) { if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e; return e.errno; } ; } function _fd_sync(fd) { try { var stream = SYSCALLS.getStreamFromFD(fd); if (stream.stream_ops && stream.stream_ops.fsync) { return stream.stream_ops.fsync(stream); } return 0; // we can't do anything synchronously; the in-memory FS is already synced to } catch (e) { if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e; return e.errno; } } /** @param {number=} offset */ var doWritev = (stream, iov, iovcnt, offset) => { var ret = 0; for (var i = 0; i < iovcnt; i++) { var ptr = HEAPU32[((iov)>>2)]; var len = HEAPU32[(((iov)+(4))>>2)]; iov += 8; var curr = FS.write(stream, HEAP8, ptr, len, offset); if (curr < 0) return -1; ret += curr; if (typeof offset !== 'undefined') { offset += curr; } } return ret; }; function _fd_write(fd, iov, iovcnt, pnum) { try { var stream = SYSCALLS.getStreamFromFD(fd); var num = doWritev(stream, iov, iovcnt); HEAPU32[((pnum)>>2)] = num; return 0; } catch (e) { if (typeof FS == 'undefined' || !(e.name === 'ErrnoError')) throw e; return e.errno; } } var _getaddrinfo = (node, service, hint, out) => { // Note getaddrinfo currently only returns a single addrinfo with ai_next defaulting to NULL. When NULL // hints are specified or ai_family set to AF_UNSPEC or ai_socktype or ai_protocol set to 0 then we // really should provide a linked list of suitable addrinfo values. var addrs = []; var canon = null; var addr = 0; var port = 0; var flags = 0; var family = 0; var type = 0; var proto = 0; var ai, last; function allocaddrinfo(family, type, proto, canon, addr, port) { var sa, salen, ai; var errno; salen = family === 10 ? 28 : 16; addr = family === 10 ? inetNtop6(addr) : inetNtop4(addr); sa = _malloc(salen); errno = writeSockaddr(sa, family, addr, port); assert(!errno); ai = _malloc(32); HEAP32[(((ai)+(4))>>2)] = family; HEAP32[(((ai)+(8))>>2)] = type; HEAP32[(((ai)+(12))>>2)] = proto; HEAPU32[(((ai)+(24))>>2)] = canon; HEAPU32[(((ai)+(20))>>2)] = sa; if (family === 10) { HEAP32[(((ai)+(16))>>2)] = 28; } else { HEAP32[(((ai)+(16))>>2)] = 16; } HEAP32[(((ai)+(28))>>2)] = 0; return ai; } if (hint) { flags = HEAP32[((hint)>>2)]; family = HEAP32[(((hint)+(4))>>2)]; type = HEAP32[(((hint)+(8))>>2)]; proto = HEAP32[(((hint)+(12))>>2)]; } if (type && !proto) { proto = type === 2 ? 17 : 6; } if (!type && proto) { type = proto === 17 ? 2 : 1; } // If type or proto are set to zero in hints we should really be returning multiple addrinfo values, but for // now default to a TCP STREAM socket so we can at least return a sensible addrinfo given NULL hints. if (proto === 0) { proto = 6; } if (type === 0) { type = 1; } if (!node && !service) { return -2; } if (flags & ~(1|2|4| 1024|8|16|32)) { return -1; } if (hint !== 0 && (HEAP32[((hint)>>2)] & 2) && !node) { return -1; } if (flags & 32) { // TODO return -2; } if (type !== 0 && type !== 1 && type !== 2) { return -7; } if (family !== 0 && family !== 2 && family !== 10) { return -6; } if (service) { service = UTF8ToString(service); port = parseInt(service, 10); if (isNaN(port)) { if (flags & 1024) { return -2; } // TODO support resolving well-known service names from: // http://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.txt return -8; } } if (!node) { if (family === 0) { family = 2; } if ((flags & 1) === 0) { if (family === 2) { addr = _htonl(2130706433); } else { addr = [0, 0, 0, 1]; } } ai = allocaddrinfo(family, type, proto, null, addr, port); HEAPU32[((out)>>2)] = ai; return 0; } // // try as a numeric address // node = UTF8ToString(node); addr = inetPton4(node); if (addr !== null) { // incoming node is a valid ipv4 address if (family === 0 || family === 2) { family = 2; } else if (family === 10 && (flags & 8)) { addr = [0, 0, _htonl(0xffff), addr]; family = 10; } else { return -2; } } else { addr = inetPton6(node); if (addr !== null) { // incoming node is a valid ipv6 address if (family === 0 || family === 10) { family = 10; } else { return -2; } } } if (addr != null) { ai = allocaddrinfo(family, type, proto, node, addr, port); HEAPU32[((out)>>2)] = ai; return 0; } if (flags & 4) { return -2; } // // try as a hostname // // resolve the hostname to a temporary fake address node = DNS.lookup_name(node); addr = inetPton4(node); if (family === 0) { family = 2; } else if (family === 10) { addr = [0, 0, _htonl(0xffff), addr]; } ai = allocaddrinfo(family, type, proto, null, addr, port); HEAPU32[((out)>>2)] = ai; return 0; }; /** @type {function(...*):?} */ function _getcontext( ) { abort('missing function: getcontext'); } _getcontext.stub = true; /** @type {function(...*):?} */ function _getdtablesize( ) { abort('missing function: getdtablesize'); } _getdtablesize.stub = true; var getHostByName = (name) => { // generate hostent var ret = _malloc(20); // XXX possibly leaked, as are others here var nameBuf = stringToNewUTF8(name); HEAPU32[((ret)>>2)] = nameBuf; var aliasesBuf = _malloc(4); HEAPU32[((aliasesBuf)>>2)] = 0; HEAPU32[(((ret)+(4))>>2)] = aliasesBuf; var afinet = 2; HEAP32[(((ret)+(8))>>2)] = afinet; HEAP32[(((ret)+(12))>>2)] = 4; var addrListBuf = _malloc(12); HEAPU32[((addrListBuf)>>2)] = addrListBuf+8; HEAPU32[(((addrListBuf)+(4))>>2)] = 0; HEAP32[(((addrListBuf)+(8))>>2)] = inetPton4(DNS.lookup_name(name)); HEAPU32[(((ret)+(16))>>2)] = addrListBuf; return ret; }; var _gethostbyname = (name) => { return getHostByName(UTF8ToString(name)); }; var _gethostbyname_r = (name, ret, buf, buflen, out, err) => { var data = _gethostbyname(name); _memcpy(ret, data, 20); _free(data); HEAP32[((err)>>2)] = 0; HEAPU32[((out)>>2)] = ret; return 0; }; var _getnameinfo = (sa, salen, node, nodelen, serv, servlen, flags) => { var info = readSockaddr(sa, salen); if (info.errno) { return -6; } var port = info.port; var addr = info.addr; var overflowed = false; if (node && nodelen) { var lookup; if ((flags & 1) || !(lookup = DNS.lookup_addr(addr))) { if (flags & 8) { return -2; } } else { addr = lookup; } var numBytesWrittenExclNull = stringToUTF8(addr, node, nodelen); if (numBytesWrittenExclNull+1 >= nodelen) { overflowed = true; } } if (serv && servlen) { port = '' + port; var numBytesWrittenExclNull = stringToUTF8(port, serv, servlen); if (numBytesWrittenExclNull+1 >= servlen) { overflowed = true; } } if (overflowed) { // Note: even when we overflow, getnameinfo() is specced to write out the truncated results. return -12; } return 0; }; var Protocols = { list:[], map:{ }, }; var _setprotoent = (stayopen) => { // void setprotoent(int stayopen); // Allocate and populate a protoent structure given a name, protocol number and array of aliases function allocprotoent(name, proto, aliases) { // write name into buffer var nameBuf = _malloc(name.length + 1); stringToAscii(name, nameBuf); // write aliases into buffer var j = 0; var length = aliases.length; var aliasListBuf = _malloc((length + 1) * 4); // Use length + 1 so we have space for the terminating NULL ptr. for (var i = 0; i < length; i++, j += 4) { var alias = aliases[i]; var aliasBuf = _malloc(alias.length + 1); stringToAscii(alias, aliasBuf); HEAPU32[(((aliasListBuf)+(j))>>2)] = aliasBuf; } HEAPU32[(((aliasListBuf)+(j))>>2)] = 0; // Terminating NULL pointer. // generate protoent var pe = _malloc(12); HEAPU32[((pe)>>2)] = nameBuf; HEAPU32[(((pe)+(4))>>2)] = aliasListBuf; HEAP32[(((pe)+(8))>>2)] = proto; return pe; }; // Populate the protocol 'database'. The entries are limited to tcp and udp, though it is fairly trivial // to add extra entries from /etc/protocols if desired - though not sure if that'd actually be useful. var list = Protocols.list; var map = Protocols.map; if (list.length === 0) { var entry = allocprotoent('tcp', 6, ['TCP']); list.push(entry); map['tcp'] = map['6'] = entry; entry = allocprotoent('udp', 17, ['UDP']); list.push(entry); map['udp'] = map['17'] = entry; } _setprotoent.index = 0; }; var _getprotobyname = (name) => { // struct protoent *getprotobyname(const char *); name = UTF8ToString(name); _setprotoent(true); var result = Protocols.map[name]; return result; }; var _getprotobynumber = (number) => { // struct protoent *getprotobynumber(int proto); _setprotoent(true); var result = Protocols.map[number]; return result; }; /** @type {function(...*):?} */ function _makecontext( ) { abort('missing function: makecontext'); } _makecontext.stub = true; var arraySum = (array, index) => { var sum = 0; for (var i = 0; i <= index; sum += array[i++]) { // no-op } return sum; }; var MONTH_DAYS_LEAP = [31,29,31,30,31,30,31,31,30,31,30,31]; var MONTH_DAYS_REGULAR = [31,28,31,30,31,30,31,31,30,31,30,31]; var addDays = (date, days) => { var newDate = new Date(date.getTime()); while (days > 0) { var leap = isLeapYear(newDate.getFullYear()); var currentMonth = newDate.getMonth(); var daysInCurrentMonth = (leap ? MONTH_DAYS_LEAP : MONTH_DAYS_REGULAR)[currentMonth]; if (days > daysInCurrentMonth-newDate.getDate()) { // we spill over to next month days -= (daysInCurrentMonth-newDate.getDate()+1); newDate.setDate(1); if (currentMonth < 11) { newDate.setMonth(currentMonth+1) } else { newDate.setMonth(0); newDate.setFullYear(newDate.getFullYear()+1); } } else { // we stay in current month newDate.setDate(newDate.getDate()+days); return newDate; } } return newDate; }; var writeArrayToMemory = (array, buffer) => { assert(array.length >= 0, 'writeArrayToMemory array must have a length (should be an array or typed array)') HEAP8.set(array, buffer); }; var _strftime = (s, maxsize, format, tm) => { // size_t strftime(char *restrict s, size_t maxsize, const char *restrict format, const struct tm *restrict timeptr); // http://pubs.opengroup.org/onlinepubs/009695399/functions/strftime.html var tm_zone = HEAPU32[(((tm)+(40))>>2)]; var date = { tm_sec: HEAP32[((tm)>>2)], tm_min: HEAP32[(((tm)+(4))>>2)], tm_hour: HEAP32[(((tm)+(8))>>2)], tm_mday: HEAP32[(((tm)+(12))>>2)], tm_mon: HEAP32[(((tm)+(16))>>2)], tm_year: HEAP32[(((tm)+(20))>>2)], tm_wday: HEAP32[(((tm)+(24))>>2)], tm_yday: HEAP32[(((tm)+(28))>>2)], tm_isdst: HEAP32[(((tm)+(32))>>2)], tm_gmtoff: HEAP32[(((tm)+(36))>>2)], tm_zone: tm_zone ? UTF8ToString(tm_zone) : '' }; var pattern = UTF8ToString(format); // expand format var EXPANSION_RULES_1 = { '%c': '%a %b %d %H:%M:%S %Y', // Replaced by the locale's appropriate date and time representation - e.g., Mon Aug 3 14:02:01 2013 '%D': '%m/%d/%y', // Equivalent to %m / %d / %y '%F': '%Y-%m-%d', // Equivalent to %Y - %m - %d '%h': '%b', // Equivalent to %b '%r': '%I:%M:%S %p', // Replaced by the time in a.m. and p.m. notation '%R': '%H:%M', // Replaced by the time in 24-hour notation '%T': '%H:%M:%S', // Replaced by the time '%x': '%m/%d/%y', // Replaced by the locale's appropriate date representation '%X': '%H:%M:%S', // Replaced by the locale's appropriate time representation // Modified Conversion Specifiers '%Ec': '%c', // Replaced by the locale's alternative appropriate date and time representation. '%EC': '%C', // Replaced by the name of the base year (period) in the locale's alternative representation. '%Ex': '%m/%d/%y', // Replaced by the locale's alternative date representation. '%EX': '%H:%M:%S', // Replaced by the locale's alternative time representation. '%Ey': '%y', // Replaced by the offset from %EC (year only) in the locale's alternative representation. '%EY': '%Y', // Replaced by the full alternative year representation. '%Od': '%d', // Replaced by the day of the month, using the locale's alternative numeric symbols, filled as needed with leading zeros if there is any alternative symbol for zero; otherwise, with leading characters. '%Oe': '%e', // Replaced by the day of the month, using the locale's alternative numeric symbols, filled as needed with leading characters. '%OH': '%H', // Replaced by the hour (24-hour clock) using the locale's alternative numeric symbols. '%OI': '%I', // Replaced by the hour (12-hour clock) using the locale's alternative numeric symbols. '%Om': '%m', // Replaced by the month using the locale's alternative numeric symbols. '%OM': '%M', // Replaced by the minutes using the locale's alternative numeric symbols. '%OS': '%S', // Replaced by the seconds using the locale's alternative numeric symbols. '%Ou': '%u', // Replaced by the weekday as a number in the locale's alternative representation (Monday=1). '%OU': '%U', // Replaced by the week number of the year (Sunday as the first day of the week, rules corresponding to %U ) using the locale's alternative numeric symbols. '%OV': '%V', // Replaced by the week number of the year (Monday as the first day of the week, rules corresponding to %V ) using the locale's alternative numeric symbols. '%Ow': '%w', // Replaced by the number of the weekday (Sunday=0) using the locale's alternative numeric symbols. '%OW': '%W', // Replaced by the week number of the year (Monday as the first day of the week) using the locale's alternative numeric symbols. '%Oy': '%y', // Replaced by the year (offset from %C ) using the locale's alternative numeric symbols. }; for (var rule in EXPANSION_RULES_1) { pattern = pattern.replace(new RegExp(rule, 'g'), EXPANSION_RULES_1[rule]); } var WEEKDAYS = ['Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday']; var MONTHS = ['January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December']; function leadingSomething(value, digits, character) { var str = typeof value == 'number' ? value.toString() : (value || ''); while (str.length < digits) { str = character[0]+str; } return str; } function leadingNulls(value, digits) { return leadingSomething(value, digits, '0'); } function compareByDay(date1, date2) { function sgn(value) { return value < 0 ? -1 : (value > 0 ? 1 : 0); } var compare; if ((compare = sgn(date1.getFullYear()-date2.getFullYear())) === 0) { if ((compare = sgn(date1.getMonth()-date2.getMonth())) === 0) { compare = sgn(date1.getDate()-date2.getDate()); } } return compare; } function getFirstWeekStartDate(janFourth) { switch (janFourth.getDay()) { case 0: // Sunday return new Date(janFourth.getFullYear()-1, 11, 29); case 1: // Monday return janFourth; case 2: // Tuesday return new Date(janFourth.getFullYear(), 0, 3); case 3: // Wednesday return new Date(janFourth.getFullYear(), 0, 2); case 4: // Thursday return new Date(janFourth.getFullYear(), 0, 1); case 5: // Friday return new Date(janFourth.getFullYear()-1, 11, 31); case 6: // Saturday return new Date(janFourth.getFullYear()-1, 11, 30); } } function getWeekBasedYear(date) { var thisDate = addDays(new Date(date.tm_year+1900, 0, 1), date.tm_yday); var janFourthThisYear = new Date(thisDate.getFullYear(), 0, 4); var janFourthNextYear = new Date(thisDate.getFullYear()+1, 0, 4); var firstWeekStartThisYear = getFirstWeekStartDate(janFourthThisYear); var firstWeekStartNextYear = getFirstWeekStartDate(janFourthNextYear); if (compareByDay(firstWeekStartThisYear, thisDate) <= 0) { // this date is after the start of the first week of this year if (compareByDay(firstWeekStartNextYear, thisDate) <= 0) { return thisDate.getFullYear()+1; } return thisDate.getFullYear(); } return thisDate.getFullYear()-1; } var EXPANSION_RULES_2 = { '%a': (date) => WEEKDAYS[date.tm_wday].substring(0,3) , '%A': (date) => WEEKDAYS[date.tm_wday], '%b': (date) => MONTHS[date.tm_mon].substring(0,3), '%B': (date) => MONTHS[date.tm_mon], '%C': (date) => { var year = date.tm_year+1900; return leadingNulls((year/100)|0,2); }, '%d': (date) => leadingNulls(date.tm_mday, 2), '%e': (date) => leadingSomething(date.tm_mday, 2, ' '), '%g': (date) => { // %g, %G, and %V give values according to the ISO 8601:2000 standard week-based year. // In this system, weeks begin on a Monday and week 1 of the year is the week that includes // January 4th, which is also the week that includes the first Thursday of the year, and // is also the first week that contains at least four days in the year. // If the first Monday of January is the 2nd, 3rd, or 4th, the preceding days are part of // the last week of the preceding year; thus, for Saturday 2nd January 1999, // %G is replaced by 1998 and %V is replaced by 53. If December 29th, 30th, // or 31st is a Monday, it and any following days are part of week 1 of the following year. // Thus, for Tuesday 30th December 1997, %G is replaced by 1998 and %V is replaced by 01. return getWeekBasedYear(date).toString().substring(2); }, '%G': (date) => getWeekBasedYear(date), '%H': (date) => leadingNulls(date.tm_hour, 2), '%I': (date) => { var twelveHour = date.tm_hour; if (twelveHour == 0) twelveHour = 12; else if (twelveHour > 12) twelveHour -= 12; return leadingNulls(twelveHour, 2); }, '%j': (date) => { // Day of the year (001-366) return leadingNulls(date.tm_mday + arraySum(isLeapYear(date.tm_year+1900) ? MONTH_DAYS_LEAP : MONTH_DAYS_REGULAR, date.tm_mon-1), 3); }, '%m': (date) => leadingNulls(date.tm_mon+1, 2), '%M': (date) => leadingNulls(date.tm_min, 2), '%n': () => '\n', '%p': (date) => { if (date.tm_hour >= 0 && date.tm_hour < 12) { return 'AM'; } return 'PM'; }, '%S': (date) => leadingNulls(date.tm_sec, 2), '%t': () => '\t', '%u': (date) => date.tm_wday || 7, '%U': (date) => { var days = date.tm_yday + 7 - date.tm_wday; return leadingNulls(Math.floor(days / 7), 2); }, '%V': (date) => { // Replaced by the week number of the year (Monday as the first day of the week) // as a decimal number [01,53]. If the week containing 1 January has four // or more days in the new year, then it is considered week 1. // Otherwise, it is the last week of the previous year, and the next week is week 1. // Both January 4th and the first Thursday of January are always in week 1. [ tm_year, tm_wday, tm_yday] var val = Math.floor((date.tm_yday + 7 - (date.tm_wday + 6) % 7 ) / 7); // If 1 Jan is just 1-3 days past Monday, the previous week // is also in this year. if ((date.tm_wday + 371 - date.tm_yday - 2) % 7 <= 2) { val++; } if (!val) { val = 52; // If 31 December of prev year a Thursday, or Friday of a // leap year, then the prev year has 53 weeks. var dec31 = (date.tm_wday + 7 - date.tm_yday - 1) % 7; if (dec31 == 4 || (dec31 == 5 && isLeapYear(date.tm_year%400-1))) { val++; } } else if (val == 53) { // If 1 January is not a Thursday, and not a Wednesday of a // leap year, then this year has only 52 weeks. var jan1 = (date.tm_wday + 371 - date.tm_yday) % 7; if (jan1 != 4 && (jan1 != 3 || !isLeapYear(date.tm_year))) val = 1; } return leadingNulls(val, 2); }, '%w': (date) => date.tm_wday, '%W': (date) => { var days = date.tm_yday + 7 - ((date.tm_wday + 6) % 7); return leadingNulls(Math.floor(days / 7), 2); }, '%y': (date) => { // Replaced by the last two digits of the year as a decimal number [00,99]. [ tm_year] return (date.tm_year+1900).toString().substring(2); }, // Replaced by the year as a decimal number (for example, 1997). [ tm_year] '%Y': (date) => date.tm_year+1900, '%z': (date) => { // Replaced by the offset from UTC in the ISO 8601:2000 standard format ( +hhmm or -hhmm ). // For example, "-0430" means 4 hours 30 minutes behind UTC (west of Greenwich). var off = date.tm_gmtoff; var ahead = off >= 0; off = Math.abs(off) / 60; // convert from minutes into hhmm format (which means 60 minutes = 100 units) off = (off / 60)*100 + (off % 60); return (ahead ? '+' : '-') + String("0000" + off).slice(-4); }, '%Z': (date) => date.tm_zone, '%%': () => '%' }; // Replace %% with a pair of NULLs (which cannot occur in a C string), then // re-inject them after processing. pattern = pattern.replace(/%%/g, '\0\0') for (var rule in EXPANSION_RULES_2) { if (pattern.includes(rule)) { pattern = pattern.replace(new RegExp(rule, 'g'), EXPANSION_RULES_2[rule](date)); } } pattern = pattern.replace(/\0\0/g, '%') var bytes = intArrayFromString(pattern, false); if (bytes.length > maxsize) { return 0; } writeArrayToMemory(bytes, s); return bytes.length-1; }; var _strptime = (buf, format, tm) => { // char *strptime(const char *restrict buf, const char *restrict format, struct tm *restrict tm); // http://pubs.opengroup.org/onlinepubs/009695399/functions/strptime.html var pattern = UTF8ToString(format); // escape special characters // TODO: not sure we really need to escape all of these in JS regexps var SPECIAL_CHARS = '\\!@#$^&*()+=-[]/{}|:<>?,.'; for (var i=0, ii=SPECIAL_CHARS.length; i=0; i=pattern.indexOf('%')) { capture.push(pattern[i+1]); pattern = pattern.replace(new RegExp('\\%'+pattern[i+1], 'g'), ''); } var matches = new RegExp('^'+pattern, "i").exec(UTF8ToString(buf)) // out(UTF8ToString(buf)+ ' is matched by '+((new RegExp('^'+pattern)).source)+' into: '+JSON.stringify(matches)); function initDate() { function fixup(value, min, max) { return (typeof value != 'number' || isNaN(value)) ? min : (value>=min ? (value<=max ? value: max): min); }; return { year: fixup(HEAP32[(((tm)+(20))>>2)] + 1900 , 1970, 9999), month: fixup(HEAP32[(((tm)+(16))>>2)], 0, 11), day: fixup(HEAP32[(((tm)+(12))>>2)], 1, 31), hour: fixup(HEAP32[(((tm)+(8))>>2)], 0, 23), min: fixup(HEAP32[(((tm)+(4))>>2)], 0, 59), sec: fixup(HEAP32[((tm)>>2)], 0, 59) }; }; if (matches) { var date = initDate(); var value; var getMatch = (symbol) => { var pos = capture.indexOf(symbol); // check if symbol appears in regexp if (pos >= 0) { // return matched value or null (falsy!) for non-matches return matches[pos+1]; } return; }; // seconds if ((value=getMatch('S'))) { date.sec = jstoi_q(value); } // minutes if ((value=getMatch('M'))) { date.min = jstoi_q(value); } // hours if ((value=getMatch('H'))) { // 24h clock date.hour = jstoi_q(value); } else if ((value = getMatch('I'))) { // AM/PM clock var hour = jstoi_q(value); if ((value=getMatch('p'))) { hour += value.toUpperCase()[0] === 'P' ? 12 : 0; } date.hour = hour; } // year if ((value=getMatch('Y'))) { // parse from four-digit year date.year = jstoi_q(value); } else if ((value=getMatch('y'))) { // parse from two-digit year... var year = jstoi_q(value); if ((value=getMatch('C'))) { // ...and century year += jstoi_q(value)*100; } else { // ...and rule-of-thumb year += year<69 ? 2000 : 1900; } date.year = year; } // month if ((value=getMatch('m'))) { // parse from month number date.month = jstoi_q(value)-1; } else if ((value=getMatch('b'))) { // parse from month name date.month = MONTH_NUMBERS[value.substring(0,3).toUpperCase()] || 0; // TODO: derive month from day in year+year, week number+day of week+year } // day if ((value=getMatch('d'))) { // get day of month directly date.day = jstoi_q(value); } else if ((value=getMatch('j'))) { // get day of month from day of year ... var day = jstoi_q(value); var leapYear = isLeapYear(date.year); for (var month=0; month<12; ++month) { var daysUntilMonth = arraySum(leapYear ? MONTH_DAYS_LEAP : MONTH_DAYS_REGULAR, month-1); if (day<=daysUntilMonth+(leapYear ? MONTH_DAYS_LEAP : MONTH_DAYS_REGULAR)[month]) { date.day = day-daysUntilMonth; } } } else if ((value=getMatch('a'))) { // get day of month from weekday ... var weekDay = value.substring(0,3).toUpperCase(); if ((value=getMatch('U'))) { // ... and week number (Sunday being first day of week) // Week number of the year (Sunday as the first day of the week) as a decimal number [00,53]. // All days in a new year preceding the first Sunday are considered to be in week 0. var weekDayNumber = DAY_NUMBERS_SUN_FIRST[weekDay]; var weekNumber = jstoi_q(value); // January 1st var janFirst = new Date(date.year, 0, 1); var endDate; if (janFirst.getDay() === 0) { // Jan 1st is a Sunday, and, hence in the 1st CW endDate = addDays(janFirst, weekDayNumber+7*(weekNumber-1)); } else { // Jan 1st is not a Sunday, and, hence still in the 0th CW endDate = addDays(janFirst, 7-janFirst.getDay()+weekDayNumber+7*(weekNumber-1)); } date.day = endDate.getDate(); date.month = endDate.getMonth(); } else if ((value=getMatch('W'))) { // ... and week number (Monday being first day of week) // Week number of the year (Monday as the first day of the week) as a decimal number [00,53]. // All days in a new year preceding the first Monday are considered to be in week 0. var weekDayNumber = DAY_NUMBERS_MON_FIRST[weekDay]; var weekNumber = jstoi_q(value); // January 1st var janFirst = new Date(date.year, 0, 1); var endDate; if (janFirst.getDay()===1) { // Jan 1st is a Monday, and, hence in the 1st CW endDate = addDays(janFirst, weekDayNumber+7*(weekNumber-1)); } else { // Jan 1st is not a Monday, and, hence still in the 0th CW endDate = addDays(janFirst, 7-janFirst.getDay()+1+weekDayNumber+7*(weekNumber-1)); } date.day = endDate.getDate(); date.month = endDate.getMonth(); } } /* tm_sec int seconds after the minute 0-61* tm_min int minutes after the hour 0-59 tm_hour int hours since midnight 0-23 tm_mday int day of the month 1-31 tm_mon int months since January 0-11 tm_year int years since 1900 tm_wday int days since Sunday 0-6 tm_yday int days since January 1 0-365 tm_isdst int Daylight Saving Time flag */ var fullDate = new Date(date.year, date.month, date.day, date.hour, date.min, date.sec, 0); HEAP32[((tm)>>2)] = fullDate.getSeconds(); HEAP32[(((tm)+(4))>>2)] = fullDate.getMinutes(); HEAP32[(((tm)+(8))>>2)] = fullDate.getHours(); HEAP32[(((tm)+(12))>>2)] = fullDate.getDate(); HEAP32[(((tm)+(16))>>2)] = fullDate.getMonth(); HEAP32[(((tm)+(20))>>2)] = fullDate.getFullYear()-1900; HEAP32[(((tm)+(24))>>2)] = fullDate.getDay(); HEAP32[(((tm)+(28))>>2)] = arraySum(isLeapYear(fullDate.getFullYear()) ? MONTH_DAYS_LEAP : MONTH_DAYS_REGULAR, fullDate.getMonth()-1)+fullDate.getDate()-1; HEAP32[(((tm)+(32))>>2)] = 0; // we need to convert the matched sequence into an integer array to take care of UTF-8 characters > 0x7F // TODO: not sure that intArrayFromString handles all unicode characters correctly return buf+intArrayFromString(matches[0]).length-1; } return 0; }; /** @type {function(...*):?} */ function _swapcontext( ) { abort('missing function: swapcontext'); } _swapcontext.stub = true; var getCFunc = (ident) => { var func = Module['_' + ident]; // closure exported function assert(func, 'Cannot call unknown function ' + ident + ', make sure it is exported'); return func; }; var stringToUTF8OnStack = (str) => { var size = lengthBytesUTF8(str) + 1; var ret = stackAlloc(size); stringToUTF8(str, ret, size); return ret; }; /** * @param {string|null=} returnType * @param {Array=} argTypes * @param {Arguments|Array=} args * @param {Object=} opts */ var ccall = (ident, returnType, argTypes, args, opts) => { // For fast lookup of conversion functions var toC = { 'string': (str) => { var ret = 0; if (str !== null && str !== undefined && str !== 0) { // null string // at most 4 bytes per UTF-8 code point, +1 for the trailing '\0' ret = stringToUTF8OnStack(str); } return ret; }, 'array': (arr) => { var ret = stackAlloc(arr.length); writeArrayToMemory(arr, ret); return ret; } }; function convertReturnValue(ret) { if (returnType === 'string') { return UTF8ToString(ret); } if (returnType === 'boolean') return Boolean(ret); return ret; } var func = getCFunc(ident); var cArgs = []; var stack = 0; assert(returnType !== 'array', 'Return type should not be "array".'); if (args) { for (var i = 0; i < args.length; i++) { var converter = toC[argTypes[i]]; if (converter) { if (stack === 0) stack = stackSave(); cArgs[i] = converter(args[i]); } else { cArgs[i] = args[i]; } } } var ret = func.apply(null, cArgs); function onDone(ret) { if (stack !== 0) stackRestore(stack); return convertReturnValue(ret); } ret = onDone(ret); return ret; }; var FSNode = /** @constructor */ function(parent, name, mode, rdev) { if (!parent) { parent = this; // root node sets parent to itself } this.parent = parent; this.mount = parent.mount; this.mounted = null; this.id = FS.nextInode++; this.name = name; this.mode = mode; this.node_ops = {}; this.stream_ops = {}; this.rdev = rdev; }; var readMode = 292/*292*/ | 73/*73*/; var writeMode = 146/*146*/; Object.defineProperties(FSNode.prototype, { read: { get: /** @this{FSNode} */function() { return (this.mode & readMode) === readMode; }, set: /** @this{FSNode} */function(val) { val ? this.mode |= readMode : this.mode &= ~readMode; } }, write: { get: /** @this{FSNode} */function() { return (this.mode & writeMode) === writeMode; }, set: /** @this{FSNode} */function(val) { val ? this.mode |= writeMode : this.mode &= ~writeMode; } }, isFolder: { get: /** @this{FSNode} */function() { return FS.isDir(this.mode); } }, isDevice: { get: /** @this{FSNode} */function() { return FS.isChrdev(this.mode); } } }); FS.FSNode = FSNode; FS.createPreloadedFile = FS_createPreloadedFile; FS.staticInit();; ERRNO_CODES = { 'EPERM': 63, 'ENOENT': 44, 'ESRCH': 71, 'EINTR': 27, 'EIO': 29, 'ENXIO': 60, 'E2BIG': 1, 'ENOEXEC': 45, 'EBADF': 8, 'ECHILD': 12, 'EAGAIN': 6, 'EWOULDBLOCK': 6, 'ENOMEM': 48, 'EACCES': 2, 'EFAULT': 21, 'ENOTBLK': 105, 'EBUSY': 10, 'EEXIST': 20, 'EXDEV': 75, 'ENODEV': 43, 'ENOTDIR': 54, 'EISDIR': 31, 'EINVAL': 28, 'ENFILE': 41, 'EMFILE': 33, 'ENOTTY': 59, 'ETXTBSY': 74, 'EFBIG': 22, 'ENOSPC': 51, 'ESPIPE': 70, 'EROFS': 69, 'EMLINK': 34, 'EPIPE': 64, 'EDOM': 18, 'ERANGE': 68, 'ENOMSG': 49, 'EIDRM': 24, 'ECHRNG': 106, 'EL2NSYNC': 156, 'EL3HLT': 107, 'EL3RST': 108, 'ELNRNG': 109, 'EUNATCH': 110, 'ENOCSI': 111, 'EL2HLT': 112, 'EDEADLK': 16, 'ENOLCK': 46, 'EBADE': 113, 'EBADR': 114, 'EXFULL': 115, 'ENOANO': 104, 'EBADRQC': 103, 'EBADSLT': 102, 'EDEADLOCK': 16, 'EBFONT': 101, 'ENOSTR': 100, 'ENODATA': 116, 'ETIME': 117, 'ENOSR': 118, 'ENONET': 119, 'ENOPKG': 120, 'EREMOTE': 121, 'ENOLINK': 47, 'EADV': 122, 'ESRMNT': 123, 'ECOMM': 124, 'EPROTO': 65, 'EMULTIHOP': 36, 'EDOTDOT': 125, 'EBADMSG': 9, 'ENOTUNIQ': 126, 'EBADFD': 127, 'EREMCHG': 128, 'ELIBACC': 129, 'ELIBBAD': 130, 'ELIBSCN': 131, 'ELIBMAX': 132, 'ELIBEXEC': 133, 'ENOSYS': 52, 'ENOTEMPTY': 55, 'ENAMETOOLONG': 37, 'ELOOP': 32, 'EOPNOTSUPP': 138, 'EPFNOSUPPORT': 139, 'ECONNRESET': 15, 'ENOBUFS': 42, 'EAFNOSUPPORT': 5, 'EPROTOTYPE': 67, 'ENOTSOCK': 57, 'ENOPROTOOPT': 50, 'ESHUTDOWN': 140, 'ECONNREFUSED': 14, 'EADDRINUSE': 3, 'ECONNABORTED': 13, 'ENETUNREACH': 40, 'ENETDOWN': 38, 'ETIMEDOUT': 73, 'EHOSTDOWN': 142, 'EHOSTUNREACH': 23, 'EINPROGRESS': 26, 'EALREADY': 7, 'EDESTADDRREQ': 17, 'EMSGSIZE': 35, 'EPROTONOSUPPORT': 66, 'ESOCKTNOSUPPORT': 137, 'EADDRNOTAVAIL': 4, 'ENETRESET': 39, 'EISCONN': 30, 'ENOTCONN': 53, 'ETOOMANYREFS': 141, 'EUSERS': 136, 'EDQUOT': 19, 'ESTALE': 72, 'ENOTSUP': 138, 'ENOMEDIUM': 148, 'EILSEQ': 25, 'EOVERFLOW': 61, 'ECANCELED': 11, 'ENOTRECOVERABLE': 56, 'EOWNERDEAD': 62, 'ESTRPIPE': 135, };; function checkIncomingModuleAPI() { ignoredModuleProp('fetchSettings'); } var wasmImports = { /** @export */ __assert_fail: ___assert_fail, /** @export */ __call_sighandler: ___call_sighandler, /** @export */ __syscall__newselect: ___syscall__newselect, /** @export */ __syscall_accept4: ___syscall_accept4, /** @export */ __syscall_bind: ___syscall_bind, /** @export */ __syscall_chdir: ___syscall_chdir, /** @export */ __syscall_chmod: ___syscall_chmod, /** @export */ __syscall_connect: ___syscall_connect, /** @export */ __syscall_dup: ___syscall_dup, /** @export */ __syscall_dup3: ___syscall_dup3, /** @export */ __syscall_faccessat: ___syscall_faccessat, /** @export */ __syscall_fchownat: ___syscall_fchownat, /** @export */ __syscall_fcntl64: ___syscall_fcntl64, /** @export */ __syscall_fdatasync: ___syscall_fdatasync, /** @export */ __syscall_fstat64: ___syscall_fstat64, /** @export */ __syscall_ftruncate64: ___syscall_ftruncate64, /** @export */ __syscall_getcwd: ___syscall_getcwd, /** @export */ __syscall_getdents64: ___syscall_getdents64, /** @export */ __syscall_getpeername: ___syscall_getpeername, /** @export */ __syscall_getsockname: ___syscall_getsockname, /** @export */ __syscall_getsockopt: ___syscall_getsockopt, /** @export */ __syscall_ioctl: ___syscall_ioctl, /** @export */ __syscall_listen: ___syscall_listen, /** @export */ __syscall_lstat64: ___syscall_lstat64, /** @export */ __syscall_mkdirat: ___syscall_mkdirat, /** @export */ __syscall_newfstatat: ___syscall_newfstatat, /** @export */ __syscall_openat: ___syscall_openat, /** @export */ __syscall_pipe: ___syscall_pipe, /** @export */ __syscall_poll: ___syscall_poll, /** @export */ __syscall_readlinkat: ___syscall_readlinkat, /** @export */ __syscall_recvfrom: ___syscall_recvfrom, /** @export */ __syscall_renameat: ___syscall_renameat, /** @export */ __syscall_rmdir: ___syscall_rmdir, /** @export */ __syscall_sendto: ___syscall_sendto, /** @export */ __syscall_socket: ___syscall_socket, /** @export */ __syscall_stat64: ___syscall_stat64, /** @export */ __syscall_statfs64: ___syscall_statfs64, /** @export */ __syscall_symlink: ___syscall_symlink, /** @export */ __syscall_unlinkat: ___syscall_unlinkat, /** @export */ __syscall_utimensat: ___syscall_utimensat, /** @export */ _emscripten_get_now_is_monotonic: __emscripten_get_now_is_monotonic, /** @export */ _emscripten_throw_longjmp: __emscripten_throw_longjmp, /** @export */ _gmtime_js: __gmtime_js, /** @export */ _localtime_js: __localtime_js, /** @export */ _mktime_js: __mktime_js, /** @export */ _mmap_js: __mmap_js, /** @export */ _munmap_js: __munmap_js, /** @export */ _setitimer_js: __setitimer_js, /** @export */ _tzset_js: __tzset_js, /** @export */ abort: _abort, /** @export */ emscripten_date_now: _emscripten_date_now, /** @export */ emscripten_err: _emscripten_err, /** @export */ emscripten_get_heap_max: _emscripten_get_heap_max, /** @export */ emscripten_get_now: _emscripten_get_now, /** @export */ emscripten_memcpy_js: _emscripten_memcpy_js, /** @export */ emscripten_resize_heap: _emscripten_resize_heap, /** @export */ environ_get: _environ_get, /** @export */ environ_sizes_get: _environ_sizes_get, /** @export */ exit: _exit, /** @export */ fd_close: _fd_close, /** @export */ fd_fdstat_get: _fd_fdstat_get, /** @export */ fd_read: _fd_read, /** @export */ fd_seek: _fd_seek, /** @export */ fd_sync: _fd_sync, /** @export */ fd_write: _fd_write, /** @export */ getaddrinfo: _getaddrinfo, /** @export */ getcontext: _getcontext, /** @export */ getdtablesize: _getdtablesize, /** @export */ gethostbyname_r: _gethostbyname_r, /** @export */ getnameinfo: _getnameinfo, /** @export */ getprotobyname: _getprotobyname, /** @export */ getprotobynumber: _getprotobynumber, /** @export */ invoke_i: invoke_i, /** @export */ invoke_ii: invoke_ii, /** @export */ invoke_iii: invoke_iii, /** @export */ invoke_iiii: invoke_iiii, /** @export */ invoke_iiiii: invoke_iiiii, /** @export */ invoke_iiiiii: invoke_iiiiii, /** @export */ invoke_iiiiiii: invoke_iiiiiii, /** @export */ invoke_iiiiiiiiii: invoke_iiiiiiiiii, /** @export */ invoke_v: invoke_v, /** @export */ invoke_vi: invoke_vi, /** @export */ invoke_vii: invoke_vii, /** @export */ invoke_viidii: invoke_viidii, /** @export */ invoke_viii: invoke_viii, /** @export */ invoke_viiii: invoke_viiii, /** @export */ invoke_viiiii: invoke_viiiii, /** @export */ invoke_viiiiii: invoke_viiiiii, /** @export */ makecontext: _makecontext, /** @export */ proc_exit: _proc_exit, /** @export */ strftime: _strftime, /** @export */ strptime: _strptime, /** @export */ swapcontext: _swapcontext }; var wasmExports = createWasm(); var ___wasm_call_ctors = createExportWrapper('__wasm_call_ctors'); var _php_wasm_run = Module['_php_wasm_run'] = createExportWrapper('php_wasm_run'); var _malloc = createExportWrapper('malloc'); var setTempRet0 = createExportWrapper('setTempRet0'); var _fflush = Module['_fflush'] = createExportWrapper('fflush'); var _free = createExportWrapper('free'); var _memcpy = createExportWrapper('memcpy'); var ___errno_location = createExportWrapper('__errno_location'); var _htons = createExportWrapper('htons'); var _ntohs = createExportWrapper('ntohs'); var _htonl = createExportWrapper('htonl'); var _emscripten_builtin_memalign = createExportWrapper('emscripten_builtin_memalign'); var __emscripten_timeout = createExportWrapper('_emscripten_timeout'); var _setThrew = createExportWrapper('setThrew'); var _emscripten_stack_init = () => (_emscripten_stack_init = wasmExports['emscripten_stack_init'])(); var _emscripten_stack_get_free = () => (_emscripten_stack_get_free = wasmExports['emscripten_stack_get_free'])(); var _emscripten_stack_get_base = () => (_emscripten_stack_get_base = wasmExports['emscripten_stack_get_base'])(); var _emscripten_stack_get_end = () => (_emscripten_stack_get_end = wasmExports['emscripten_stack_get_end'])(); var stackSave = createExportWrapper('stackSave'); var stackRestore = createExportWrapper('stackRestore'); var stackAlloc = createExportWrapper('stackAlloc'); var _emscripten_stack_get_current = () => (_emscripten_stack_get_current = wasmExports['emscripten_stack_get_current'])(); var dynCall_vij = Module['dynCall_vij'] = createExportWrapper('dynCall_vij'); var dynCall_ji = Module['dynCall_ji'] = createExportWrapper('dynCall_ji'); var dynCall_jiji = Module['dynCall_jiji'] = createExportWrapper('dynCall_jiji'); function invoke_iii(index,a1,a2) { var sp = stackSave(); try { return getWasmTableEntry(index)(a1,a2); } catch(e) { stackRestore(sp); if (e !== e+0) throw e; _setThrew(1, 0); } } function invoke_iiiii(index,a1,a2,a3,a4) { var sp = stackSave(); try { return getWasmTableEntry(index)(a1,a2,a3,a4); } catch(e) { stackRestore(sp); if (e !== e+0) throw e; _setThrew(1, 0); } } function invoke_v(index) { var sp = stackSave(); try { getWasmTableEntry(index)(); } catch(e) { stackRestore(sp); if (e !== e+0) throw e; _setThrew(1, 0); } } function invoke_ii(index,a1) { var sp = stackSave(); try { return getWasmTableEntry(index)(a1); } catch(e) { stackRestore(sp); if (e !== e+0) throw e; _setThrew(1, 0); } } function invoke_viii(index,a1,a2,a3) { var sp = stackSave(); try { getWasmTableEntry(index)(a1,a2,a3); } catch(e) { stackRestore(sp); if (e !== e+0) throw e; _setThrew(1, 0); } } function invoke_vii(index,a1,a2) { var sp = stackSave(); try { getWasmTableEntry(index)(a1,a2); } catch(e) { stackRestore(sp); if (e !== e+0) throw e; _setThrew(1, 0); } } function invoke_vi(index,a1) { var sp = stackSave(); try { getWasmTableEntry(index)(a1); } catch(e) { stackRestore(sp); if (e !== e+0) throw e; _setThrew(1, 0); } } function invoke_i(index) { var sp = stackSave(); try { return getWasmTableEntry(index)(); } catch(e) { stackRestore(sp); if (e !== e+0) throw e; _setThrew(1, 0); } } function invoke_iiiiiii(index,a1,a2,a3,a4,a5,a6) { var sp = stackSave(); try { return getWasmTableEntry(index)(a1,a2,a3,a4,a5,a6); } catch(e) { stackRestore(sp); if (e !== e+0) throw e; _setThrew(1, 0); } } function invoke_iiii(index,a1,a2,a3) { var sp = stackSave(); try { return getWasmTableEntry(index)(a1,a2,a3); } catch(e) { stackRestore(sp); if (e !== e+0) throw e; _setThrew(1, 0); } } function invoke_viiii(index,a1,a2,a3,a4) { var sp = stackSave(); try { getWasmTableEntry(index)(a1,a2,a3,a4); } catch(e) { stackRestore(sp); if (e !== e+0) throw e; _setThrew(1, 0); } } function invoke_viiiii(index,a1,a2,a3,a4,a5) { var sp = stackSave(); try { getWasmTableEntry(index)(a1,a2,a3,a4,a5); } catch(e) { stackRestore(sp); if (e !== e+0) throw e; _setThrew(1, 0); } } function invoke_iiiiii(index,a1,a2,a3,a4,a5) { var sp = stackSave(); try { return getWasmTableEntry(index)(a1,a2,a3,a4,a5); } catch(e) { stackRestore(sp); if (e !== e+0) throw e; _setThrew(1, 0); } } function invoke_iiiiiiiiii(index,a1,a2,a3,a4,a5,a6,a7,a8,a9) { var sp = stackSave(); try { return getWasmTableEntry(index)(a1,a2,a3,a4,a5,a6,a7,a8,a9); } catch(e) { stackRestore(sp); if (e !== e+0) throw e; _setThrew(1, 0); } } function invoke_viiiiii(index,a1,a2,a3,a4,a5,a6) { var sp = stackSave(); try { getWasmTableEntry(index)(a1,a2,a3,a4,a5,a6); } catch(e) { stackRestore(sp); if (e !== e+0) throw e; _setThrew(1, 0); } } function invoke_viidii(index,a1,a2,a3,a4,a5) { var sp = stackSave(); try { getWasmTableEntry(index)(a1,a2,a3,a4,a5); } catch(e) { stackRestore(sp); if (e !== e+0) throw e; _setThrew(1, 0); } } // include: postamble.js // === Auto-generated postamble setup entry stuff === Module['ccall'] = ccall; var missingLibrarySymbols = [ 'writeI53ToI64', 'writeI53ToI64Clamped', 'writeI53ToI64Signaling', 'writeI53ToU64Clamped', 'writeI53ToU64Signaling', 'readI53FromU64', 'convertI32PairToI53', 'convertU32PairToI53', 'growMemory', 'getCallstack', 'emscriptenLog', 'convertPCtoSourceLocation', 'readEmAsmArgs', 'jstoi_s', 'listenOnce', 'autoResumeAudioContext', 'dynCallLegacy', 'getDynCaller', 'dynCall', 'runtimeKeepalivePush', 'runtimeKeepalivePop', 'safeSetTimeout', 'asmjsMangle', 'handleAllocatorInit', 'HandleAllocator', 'getNativeTypeSize', 'STACK_SIZE', 'STACK_ALIGN', 'POINTER_SIZE', 'ASSERTIONS', 'cwrap', 'uleb128Encode', 'sigToWasmTypes', 'generateFuncType', 'convertJsFunctionToWasm', 'getEmptyTableSlot', 'updateTableMap', 'getFunctionAddress', 'addFunction', 'removeFunction', 'reallyNegative', 'unSign', 'strLen', 'reSign', 'formatString', 'intArrayToString', 'AsciiToString', 'UTF16ToString', 'stringToUTF16', 'lengthBytesUTF16', 'UTF32ToString', 'stringToUTF32', 'lengthBytesUTF32', 'registerKeyEventCallback', 'maybeCStringToJsString', 'findEventTarget', 'findCanvasEventTarget', 'getBoundingClientRect', 'fillMouseEventData', 'registerMouseEventCallback', 'registerWheelEventCallback', 'registerUiEventCallback', 'registerFocusEventCallback', 'fillDeviceOrientationEventData', 'registerDeviceOrientationEventCallback', 'fillDeviceMotionEventData', 'registerDeviceMotionEventCallback', 'screenOrientation', 'fillOrientationChangeEventData', 'registerOrientationChangeEventCallback', 'fillFullscreenChangeEventData', 'registerFullscreenChangeEventCallback', 'JSEvents_requestFullscreen', 'JSEvents_resizeCanvasForFullscreen', 'registerRestoreOldStyle', 'hideEverythingExceptGivenElement', 'restoreHiddenElements', 'setLetterbox', 'softFullscreenResizeWebGLRenderTarget', 'doRequestFullscreen', 'fillPointerlockChangeEventData', 'registerPointerlockChangeEventCallback', 'registerPointerlockErrorEventCallback', 'requestPointerLock', 'fillVisibilityChangeEventData', 'registerVisibilityChangeEventCallback', 'registerTouchEventCallback', 'fillGamepadEventData', 'registerGamepadEventCallback', 'registerBeforeUnloadEventCallback', 'fillBatteryEventData', 'battery', 'registerBatteryEventCallback', 'setCanvasElementSize', 'getCanvasElementSize', 'jsStackTrace', 'stackTrace', 'checkWasiClock', 'wasiRightsToMuslOFlags', 'wasiOFlagsToMuslOFlags', 'createDyncallWrapper', 'setImmediateWrapped', 'clearImmediateWrapped', 'polyfillSetImmediate', 'getPromise', 'makePromise', 'idsToPromises', 'makePromiseCallback', 'ExceptionInfo', 'findMatchingCatch', 'setMainLoop', 'FS_unlink', 'FS_mkdirTree', '_setNetworkCallback', 'heapObjectForWebGLType', 'heapAccessShiftForWebGLHeap', 'webgl_enable_ANGLE_instanced_arrays', 'webgl_enable_OES_vertex_array_object', 'webgl_enable_WEBGL_draw_buffers', 'webgl_enable_WEBGL_multi_draw', 'emscriptenWebGLGet', 'computeUnpackAlignedImageSize', 'colorChannelsInGlTextureFormat', 'emscriptenWebGLGetTexPixelData', '__glGenObject', 'emscriptenWebGLGetUniform', 'webglGetUniformLocation', 'webglPrepareUniformLocationsBeforeFirstUse', 'webglGetLeftBracePos', 'emscriptenWebGLGetVertexAttrib', '__glGetActiveAttribOrUniform', 'writeGLArray', 'registerWebGlEventCallback', 'runAndAbortIfError', 'SDL_unicode', 'SDL_ttfContext', 'SDL_audio', 'ALLOC_NORMAL', 'ALLOC_STACK', 'allocate', 'writeStringToMemory', 'writeAsciiToMemory', ]; missingLibrarySymbols.forEach(missingLibrarySymbol) var unexportedSymbols = [ 'run', 'addOnPreRun', 'addOnInit', 'addOnPreMain', 'addOnExit', 'addOnPostRun', 'addRunDependency', 'removeRunDependency', 'FS_createFolder', 'FS_createPath', 'FS_createLazyFile', 'FS_createLink', 'FS_createDevice', 'FS_readFile', 'out', 'err', 'callMain', 'abort', 'keepRuntimeAlive', 'wasmMemory', 'wasmExports', 'stackAlloc', 'stackSave', 'stackRestore', 'getTempRet0', 'setTempRet0', 'writeStackCookie', 'checkStackCookie', 'readI53FromI64', 'convertI32PairToI53Checked', 'ptrToString', 'zeroMemory', 'exitJS', 'getHeapMax', 'abortOnCannotGrowMemory', 'ENV', 'MONTH_DAYS_REGULAR', 'MONTH_DAYS_LEAP', 'MONTH_DAYS_REGULAR_CUMULATIVE', 'MONTH_DAYS_LEAP_CUMULATIVE', 'isLeapYear', 'ydayFromDate', 'arraySum', 'addDays', 'ERRNO_CODES', 'ERRNO_MESSAGES', 'setErrNo', 'inetPton4', 'inetNtop4', 'inetPton6', 'inetNtop6', 'readSockaddr', 'writeSockaddr', 'DNS', 'getHostByName', 'Protocols', 'Sockets', 'initRandomFill', 'randomFill', 'timers', 'warnOnce', 'UNWIND_CACHE', 'readEmAsmArgsArray', 'jstoi_q', 'getExecutableName', 'handleException', 'callUserCallback', 'maybeExit', 'asyncLoad', 'alignMemory', 'mmapAlloc', 'wasmTable', 'getCFunc', 'freeTableIndexes', 'functionsInTableMap', 'setValue', 'getValue', 'PATH', 'PATH_FS', 'UTF8Decoder', 'UTF8ArrayToString', 'UTF8ToString', 'stringToUTF8Array', 'stringToUTF8', 'lengthBytesUTF8', 'intArrayFromString', 'stringToAscii', 'UTF16Decoder', 'stringToNewUTF8', 'stringToUTF8OnStack', 'writeArrayToMemory', 'JSEvents', 'specialHTMLTargets', 'currentFullscreenStrategy', 'restoreOldWindowedStyle', 'demangle', 'demangleAll', 'ExitStatus', 'getEnvStrings', 'doReadv', 'doWritev', 'promiseMap', 'uncaughtExceptionCount', 'exceptionLast', 'exceptionCaught', 'Browser', 'wget', 'SYSCALLS', 'getSocketFromFD', 'getSocketAddress', 'preloadPlugins', 'FS_createPreloadedFile', 'FS_modeStringToFlags', 'FS_getMode', 'FS_stdin_getChar_buffer', 'FS_stdin_getChar', 'FS', 'FS_createDataFile', 'MEMFS', 'TTY', 'PIPEFS', 'SOCKFS', 'tempFixedLengthArray', 'miniTempWebGLFloatBuffers', 'miniTempWebGLIntBuffers', 'GL', 'emscripten_webgl_power_preferences', 'AL', 'GLUT', 'EGL', 'GLEW', 'IDBStore', 'SDL', 'SDL_gfx', 'allocateUTF8', 'allocateUTF8OnStack', ]; unexportedSymbols.forEach(unexportedRuntimeSymbol); var calledRun; dependenciesFulfilled = function runCaller() { // If run has never been called, and we should call run (INVOKE_RUN is true, and Module.noInitialRun is not false) if (!calledRun) run(); if (!calledRun) dependenciesFulfilled = runCaller; // try this again later, after new deps are fulfilled }; function stackCheckInit() { // This is normally called automatically during __wasm_call_ctors but need to // get these values before even running any of the ctors so we call it redundantly // here. _emscripten_stack_init(); // TODO(sbc): Move writeStackCookie to native to to avoid this. writeStackCookie(); } function run() { if (runDependencies > 0) { return; } stackCheckInit(); preRun(); // a preRun added a dependency, run will be called later if (runDependencies > 0) { return; } function doRun() { // run may have just been called through dependencies being fulfilled just in this very frame, // or while the async setStatus time below was happening if (calledRun) return; calledRun = true; Module['calledRun'] = true; if (ABORT) return; initRuntime(); readyPromiseResolve(Module); if (Module['onRuntimeInitialized']) Module['onRuntimeInitialized'](); assert(!Module['_main'], 'compiled without a main, but one is present. if you added it from JS, use Module["onRuntimeInitialized"]'); postRun(); } if (Module['setStatus']) { Module['setStatus']('Running...'); setTimeout(function() { setTimeout(function() { Module['setStatus'](''); }, 1); doRun(); }, 1); } else { doRun(); } checkStackCookie(); } function checkUnflushedContent() { // Compiler settings do not allow exiting the runtime, so flushing // the streams is not possible. but in ASSERTIONS mode we check // if there was something to flush, and if so tell the user they // should request that the runtime be exitable. // Normally we would not even include flush() at all, but in ASSERTIONS // builds we do so just for this check, and here we see if there is any // content to flush, that is, we check if there would have been // something a non-ASSERTIONS build would have not seen. // How we flush the streams depends on whether we are in SYSCALLS_REQUIRE_FILESYSTEM=0 // mode (which has its own special function for this; otherwise, all // the code is inside libc) var oldOut = out; var oldErr = err; var has = false; out = err = (x) => { has = true; } try { // it doesn't matter if it fails _fflush(0); // also flush in the JS FS layer ['stdout', 'stderr'].forEach(function(name) { var info = FS.analyzePath('/dev/' + name); if (!info) return; var stream = info.object; var rdev = stream.rdev; var tty = TTY.ttys[rdev]; if (tty && tty.output && tty.output.length) { has = true; } }); } catch(e) {} out = oldOut; err = oldErr; if (has) { warnOnce('stdio streams had content in them that was not flushed. you should set EXIT_RUNTIME to 1 (see the Emscripten FAQ), or make sure to emit a newline when you printf etc.'); } } if (Module['preInit']) { if (typeof Module['preInit'] == 'function') Module['preInit'] = [Module['preInit']]; while (Module['preInit'].length > 0) { Module['preInit'].pop()(); } } run(); // end include: postamble.js return moduleArg.ready } ); })(); export default Module;