/*
ading2210/libcurl.js - A port of libcurl to WASM for the browser.
Copyright (C) 2024 ading2210
Licensed under the GNU LGPL v3. See https://github.com/ading2210/libcurl.js
*/

//everything is wrapped in a function to prevent emscripten from polluting the global scope
const libcurl = (function() {

//emscripten compiled code is inserted here
/* __emscripten_output__ */
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Add 'node' to `-s ENVIRONMENT` to enable.");assert(!ENVIRONMENT_IS_SHELL,"shell environment detected but not enabled at build time.  Add 'shell' to `-s ENVIRONMENT` to enable.");var POINTER_SIZE=4;function warnOnce(text){if(!warnOnce.shown)warnOnce.shown={};if(!warnOnce.shown[text]){warnOnce.shown[text]=1;err(text)}}function convertJsFunctionToWasm(func,sig){if(typeof WebAssembly.Function=="function"){var typeNames={"i":"i32","j":"i64","f":"f32","d":"f64"};var type={parameters:[],results:sig[0]=="v"?[]:[typeNames[sig[0]]]};for(var i=1;i<sig.length;++i){type.parameters.push(typeNames[sig[i]])}return new WebAssembly.Function(type,func)}var typeSection=[1,0,1,96];var sigRet=sig.slice(0,1);var sigParam=sig.slice(1);var typeCodes={"i":127,"j":126,"f":125,"d":124};typeSection.push(sigParam.length);for(var i=0;i<sigParam.length;++i){typeSection.push(typeCodes[sigParam[i]])}if(sigRet=="v"){typeSection.push(0)}else{typeSection=typeSection.concat([1,typeCodes[sigRet]])}typeSection[1]=typeSection.length-2;var bytes=new Uint8Array([0,97,115,109,1,0,0,0].concat(typeSection,[2,7,1,1,101,1,102,0,0,7,5,1,1,102,0,0]));var module=new WebAssembly.Module(bytes);var instance=new WebAssembly.Instance(module,{"e":{"f":func}});var wrappedFunc=instance.exports["f"];return wrappedFunc}var freeTableIndexes=[];var functionsInTableMap;function getEmptyTableSlot(){if(freeTableIndexes.length){return freeTableIndexes.pop()}try{wasmTable.grow(1)}catch(err){if(!(err instanceof RangeError)){throw err}throw"Unable to grow wasm table. 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Alternatively, forcing filesystem support (-s FORCE_FILESYSTEM=1) can export this for you"}return msg}function unexportedRuntimeSymbol(sym,isFSSybol){if(!Object.getOwnPropertyDescriptor(Module,sym)){Object.defineProperty(Module,sym,{configurable:true,get:function(){abort(unexportedMessage(sym,isFSSybol))}})}}function unexportedRuntimeFunction(sym,isFSSybol){if(!Object.getOwnPropertyDescriptor(Module,sym)){Module[sym]=(()=>abort(unexportedMessage(sym,isFSSybol)))}}var tempRet0=0;var setTempRet0=value=>{tempRet0=value};var getTempRet0=()=>tempRet0;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")}var wasmMemory;var ABORT=false;var EXITSTATUS;function assert(condition,text){if(!condition){abort("Assertion failed"+(text?": "+text:""))}}function getCFunc(ident){var func=Module["_"+ident];assert(func,"Cannot call unknown function "+ident+", make sure it is exported");return func}function ccall(ident,returnType,argTypes,args,opts){var toC={"string":function(str){var ret=0;if(str!==null&&str!==undefined&&str!==0){var len=(str.length<<2)+1;ret=stackAlloc(len);stringToUTF8(str,ret,len)}return ret},"array":function(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 ALLOC_NORMAL=0;var ALLOC_STACK=1;function allocate(slab,allocator){var ret;assert(typeof allocator=="number","allocate no longer takes a type argument");assert(typeof slab!="number","allocate no longer takes a number as arg0");if(allocator==ALLOC_STACK){ret=stackAlloc(slab.length)}else{ret=_malloc(slab.length)}if(!slab.subarray&&!slab.slice){slab=new Uint8Array(slab)}HEAPU8.set(slab,ret);return ret}var UTF8Decoder=typeof TextDecoder!="undefined"?new TextDecoder("utf8"):undefined;function UTF8ArrayToString(heap,idx,maxBytesToRead){var endIdx=idx+maxBytesToRead;var endPtr=idx;while(heap[endPtr]&&!(endPtr>=endIdx))++endPtr;if(endPtr-idx>16&&heap.subarray&&UTF8Decoder){return UTF8Decoder.decode(heap.subarray(idx,endPtr))}else{var str="";while(idx<endPtr){var u0=heap[idx++];if(!(u0&128)){str+=String.fromCharCode(u0);continue}var u1=heap[idx++]&63;if((u0&224)==192){str+=String.fromCharCode((u0&31)<<6|u1);continue}var u2=heap[idx++]&63;if((u0&240)==224){u0=(u0&15)<<12|u1<<6|u2}else{if((u0&248)!=240)warnOnce("Invalid UTF-8 leading byte 0x"+u0.toString(16)+" encountered when deserializing a UTF-8 string in wasm memory to a JS string!");u0=(u0&7)<<18|u1<<12|u2<<6|heap[idx++]&63}if(u0<65536){str+=String.fromCharCode(u0)}else{var ch=u0-65536;str+=String.fromCharCode(55296|ch>>10,56320|ch&1023)}}}return str}function UTF8ToString(ptr,maxBytesToRead){return ptr?UTF8ArrayToString(HEAPU8,ptr,maxBytesToRead):""}function stringToUTF8Array(str,heap,outIdx,maxBytesToWrite){if(!(maxBytesToWrite>0))return 0;var startIdx=outIdx;var endIdx=outIdx+maxBytesToWrite-1;for(var i=0;i<str.length;++i){var u=str.charCodeAt(i);if(u>=55296&&u<=57343){var u1=str.charCodeAt(++i);u=65536+((u&1023)<<10)|u1&1023}if(u<=127){if(outIdx>=endIdx)break;heap[outIdx++]=u}else if(u<=2047){if(outIdx+1>=endIdx)break;heap[outIdx++]=192|u>>6;heap[outIdx++]=128|u&63}else if(u<=65535){if(outIdx+2>=endIdx)break;heap[outIdx++]=224|u>>12;heap[outIdx++]=128|u>>6&63;heap[outIdx++]=128|u&63}else{if(outIdx+3>=endIdx)break;if(u>1114111)warnOnce("Invalid Unicode code point 0x"+u.toString(16)+" 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++]=240|u>>18;heap[outIdx++]=128|u>>12&63;heap[outIdx++]=128|u>>6&63;heap[outIdx++]=128|u&63}}heap[outIdx]=0;return outIdx-startIdx}function 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 lengthBytesUTF8(str){var len=0;for(var i=0;i<str.length;++i){var u=str.charCodeAt(i);if(u>=55296&&u<=57343)u=65536+((u&1023)<<10)|str.charCodeAt(++i)&1023;if(u<=127)++len;else if(u<=2047)len+=2;else if(u<=65535)len+=3;else len+=4}return len}var UTF16Decoder=typeof TextDecoder!="undefined"?new TextDecoder("utf-16le"):undefined;function allocateUTF8(str){var size=lengthBytesUTF8(str)+1;var ret=_malloc(size);if(ret)stringToUTF8Array(str,HEAP8,ret,size);return ret}function writeArrayToMemory(array,buffer){assert(array.length>=0,"writeArrayToMemory array must have a length (should be an array or typed array)");HEAP8.set(array,buffer)}function writeAsciiToMemory(str,buffer,dontAddNull){for(var i=0;i<str.length;++i){assert(str.charCodeAt(i)===(str.charCodeAt(i)&255));HEAP8[buffer++>>0]=str.charCodeAt(i)}if(!dontAddNull)HEAP8[buffer>>0]=0}var buffer,HEAP8,HEAPU8,HEAP16,HEAPU16,HEAP32,HEAPU32,HEAPF32,HEAPF64;function updateGlobalBufferAndViews(buf){buffer=buf;Module["HEAP8"]=HEAP8=new Int8Array(buf);Module["HEAP16"]=HEAP16=new Int16Array(buf);Module["HEAP32"]=HEAP32=new Int32Array(buf);Module["HEAPU8"]=HEAPU8=new Uint8Array(buf);Module["HEAPU16"]=HEAPU16=new Uint16Array(buf);Module["HEAPU32"]=HEAPU32=new Uint32Array(buf);Module["HEAPF32"]=HEAPF32=new Float32Array(buf);Module["HEAPF64"]=HEAPF64=new Float64Array(buf)}var TOTAL_STACK=5242880;if(Module["TOTAL_STACK"])assert(TOTAL_STACK===Module["TOTAL_STACK"],"the stack size can no longer be determined at runtime");var INITIAL_MEMORY=Module["INITIAL_MEMORY"]||16777216;legacyModuleProp("INITIAL_MEMORY","INITIAL_MEMORY");assert(INITIAL_MEMORY>=TOTAL_STACK,"INITIAL_MEMORY should be larger than TOTAL_STACK, was "+INITIAL_MEMORY+"! (TOTAL_STACK="+TOTAL_STACK+")");assert(typeof Int32Array!="undefined"&&typeof Float64Array!=="undefined"&&Int32Array.prototype.subarray!=undefined&&Int32Array.prototype.set!=undefined,"JS engine does not provide full typed array support");assert(!Module["wasmMemory"],"Use of `wasmMemory` detected.  Use -s IMPORTED_MEMORY to define wasmMemory externally");assert(INITIAL_MEMORY==16777216,"Detected runtime INITIAL_MEMORY setting.  Use -s IMPORTED_MEMORY to define wasmMemory dynamically");var wasmTable;function writeStackCookie(){var max=_emscripten_stack_get_end();assert((max&3)==0);HEAP32[max+4>>2]=34821223;HEAP32[max+8>>2]=2310721022;HEAP32[0]=1668509029}function checkStackCookie(){if(ABORT)return;var max=_emscripten_stack_get_end();var cookie1=HEAPU32[max+4>>2];var cookie2=HEAPU32[max+8>>2];if(cookie1!=34821223||cookie2!=2310721022){abort("Stack overflow! Stack cookie has been overwritten, expected hex dwords 0x89BACDFE and 0x2135467, but received 0x"+cookie2.toString(16)+" 0x"+cookie1.toString(16))}if(HEAP32[0]!==1668509029)abort("Runtime error: The application has corrupted its heap memory area (address zero)!")}(function(){var h16=new Int16Array(1);var h8=new Int8Array(h16.buffer);h16[0]=25459;if(h8[0]!==115||h8[1]!==99)throw"Runtime error: expected the system to be little-endian! (Run with -s SUPPORT_BIG_ENDIAN=1 to bypass)"})();var __ATPRERUN__=[];var __ATINIT__=[];var __ATPOSTRUN__=[];var runtimeInitialized=false;var runtimeExited=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(){checkStackCookie();assert(!runtimeInitialized);runtimeInitialized=true;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 exitRuntime(){checkStackCookie();runtimeExited=true}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 addOnPostRun(cb){__ATPOSTRUN__.unshift(cb)}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");var runDependencies=0;var runDependencyWatcher=null;var dependenciesFulfilled=null;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"){runDependencyWatcher=setInterval(function(){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)")}},1e4)}}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()}}}Module["preloadedImages"]={};Module["preloadedAudios"]={};function abort(what){{if(Module["onAbort"]){Module["onAbort"](what)}}what="Aborted("+what+")";err(what);ABORT=true;EXITSTATUS=1;var e=new WebAssembly.RuntimeError(what);throw e}var dataURIPrefix="data:application/octet-stream;base64,";function isDataURI(filename){return filename.startsWith(dataURIPrefix)}function isFileURI(filename){return filename.startsWith("file://")}function createExportWrapper(name,fixedasm){return function(){var displayName=name;var asm=fixedasm;if(!fixedasm){asm=Module["asm"]}assert(runtimeInitialized,"native function `"+displayName+"` called before runtime initialization");assert(!runtimeExited,"native function `"+displayName+"` called after runtime exit (use NO_EXIT_RUNTIME to keep it alive after main() exits)");if(!asm[name]){assert(asm[name],"exported native function `"+displayName+"` not found")}return asm[name].apply(null,arguments)}}var wasmBinaryFile;wasmBinaryFile="data:application/octet-stream;base64,[encoded data, 1871152 characters]";if(!isDataURI(wasmBinaryFile)){wasmBinaryFile=locateFile(wasmBinaryFile)}function getBinary(file){try{if(file==wasmBinaryFile&&wasmBinary){return new Uint8Array(wasmBinary)}var binary=tryParseAsDataURI(file);if(binary){return binary}if(readBinary){return readBinary(file)}else{throw"both async and sync fetching of the wasm failed"}}catch(err){abort(err)}}function getBinaryPromise(){if(!wasmBinary&&(ENVIRONMENT_IS_WEB||ENVIRONMENT_IS_WORKER)){if(typeof fetch=="function"){return fetch(wasmBinaryFile,{credentials:"same-origin"}).then(function(response){if(!response["ok"]){throw"failed to load wasm binary file at '"+wasmBinaryFile+"'"}return response["arrayBuffer"]()}).catch(function(){return getBinary(wasmBinaryFile)})}}return Promise.resolve().then(function(){return getBinary(wasmBinaryFile)})}function createWasm(){var info={"env":asmLibraryArg,"wasi_snapshot_preview1":asmLibraryArg};function receiveInstance(instance,module){var exports=instance.exports;Module["asm"]=exports;wasmMemory=Module["asm"]["memory"];assert(wasmMemory,"memory not found in wasm exports");updateGlobalBufferAndViews(wasmMemory.buffer);wasmTable=Module["asm"]["__indirect_function_table"];assert(wasmTable,"table not found in wasm exports");addOnInit(Module["asm"]["__wasm_call_ctors"]);removeRunDependency("wasm-instantiate")}addRunDependency("wasm-instantiate");var trueModule=Module;function receiveInstantiationResult(result){assert(Module===trueModule,"the Module object should not be replaced during async compilation - perhaps the order of HTML elements is wrong?");trueModule=null;receiveInstance(result["instance"])}function instantiateArrayBuffer(receiver){return getBinaryPromise().then(function(binary){return WebAssembly.instantiate(binary,info)}).then(function(instance){return instance}).then(receiver,function(reason){err("failed to asynchronously prepare wasm: "+reason);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(){if(!wasmBinary&&typeof WebAssembly.instantiateStreaming=="function"&&!isDataURI(wasmBinaryFile)&&typeof fetch=="function"){return fetch(wasmBinaryFile,{credentials:"same-origin"}).then(function(response){var result=WebAssembly.instantiateStreaming(response,info);return result.then(receiveInstantiationResult,function(reason){err("wasm streaming compile failed: "+reason);err("falling back to ArrayBuffer instantiation");return instantiateArrayBuffer(receiveInstantiationResult)})})}else{return instantiateArrayBuffer(receiveInstantiationResult)}}if(Module["instantiateWasm"]){try{var exports=Module["instantiateWasm"](info,receiveInstance);return exports}catch(e){err("Module.instantiateWasm callback failed with error: "+e);return false}}instantiateAsync();return{}}var tempDouble;var tempI64;function callRuntimeCallbacks(callbacks){while(callbacks.length>0){var callback=callbacks.shift();if(typeof callback=="function"){callback(Module);continue}var func=callback.func;if(typeof func=="number"){if(callback.arg===undefined){getWasmTableEntry(func)()}else{getWasmTableEntry(func)(callback.arg)}}else{func(callback.arg===undefined?null:callback.arg)}}}function demangle(func){warnOnce("warning: build with  -s DEMANGLE_SUPPORT=1  to link in libcxxabi demangling");return func}function 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+"]"})}function getWasmTableEntry(funcPtr){return wasmTable.get(funcPtr)}function handleException(e){if(e instanceof ExitStatus||e=="unwind"){return EXITSTATUS}quit_(1,e)}function jsStackTrace(){var error=new Error;if(!error.stack){try{throw new Error}catch(e){error=e}if(!error.stack){return"(no stack trace available)"}}return error.stack.toString()}function setWasmTableEntry(idx,func){wasmTable.set(idx,func)}function ___assert_fail(condition,filename,line,func){abort("Assertion failed: "+UTF8ToString(condition)+", at: "+[filename?UTF8ToString(filename):"unknown filename",line,func?UTF8ToString(func):"unknown function"])}function ___call_sighandler(fp,sig){getWasmTableEntry(fp)(sig)}var PATH={splitPath:function(filename){var splitPathRe=/^(\/?|)([\s\S]*?)((?:\.{1,2}|[^\/]+?|)(\.[^.\/]*|))(?:[\/]*)$/;return splitPathRe.exec(filename).slice(1)},normalizeArray:function(parts,allowAboveRoot){var up=0;for(var i=parts.length-1;i>=0;i--){var last=parts[i];if(last==="."){parts.splice(i,1)}else if(last===".."){parts.splice(i,1);up++}else if(up){parts.splice(i,1);up--}}if(allowAboveRoot){for(;up;up--){parts.unshift("..")}}return parts},normalize:function(path){var isAbsolute=path.charAt(0)==="/",trailingSlash=path.substr(-1)==="/";path=PATH.normalizeArray(path.split("/").filter(function(p){return!!p}),!isAbsolute).join("/");if(!path&&!isAbsolute){path="."}if(path&&trailingSlash){path+="/"}return(isAbsolute?"/":"")+path},dirname:function(path){var result=PATH.splitPath(path),root=result[0],dir=result[1];if(!root&&!dir){return"."}if(dir){dir=dir.substr(0,dir.length-1)}return root+dir},basename:function(path){if(path==="/")return"/";path=PATH.normalize(path);path=path.replace(/\/$/,"");var lastSlash=path.lastIndexOf("/");if(lastSlash===-1)return path;return path.substr(lastSlash+1)},extname:function(path){return PATH.splitPath(path)[3]},join:function(){var paths=Array.prototype.slice.call(arguments,0);return PATH.normalize(paths.join("/"))},join2:function(l,r){return PATH.normalize(l+"/"+r)}};function getRandomDevice(){if(typeof crypto=="object"&&typeof crypto["getRandomValues"]=="function"){var randomBuffer=new Uint8Array(1);return function(){crypto.getRandomValues(randomBuffer);return randomBuffer[0]}}else return function(){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: function(array) { for (var i = 0; i < array.length; i++) array[i] = (Math.random()*256)|0 } };")}}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();if(typeof path!="string"){throw new TypeError("Arguments to path.resolve must be strings")}else if(!path){return""}resolvedPath=path+"/"+resolvedPath;resolvedAbsolute=path.charAt(0)==="/"}resolvedPath=PATH.normalizeArray(resolvedPath.split("/").filter(function(p){return!!p}),!resolvedAbsolute).join("/");return(resolvedAbsolute?"/":"")+resolvedPath||"."},relative:function(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 TTY={ttys:[],init:function(){},shutdown:function(){},register:function(dev,ops){TTY.ttys[dev]={input:[],output:[],ops:ops};FS.registerDevice(dev,TTY.stream_ops)},stream_ops:{open:function(stream){var tty=TTY.ttys[stream.node.rdev];if(!tty){throw new FS.ErrnoError(43)}stream.tty=tty;stream.seekable=false},close:function(stream){stream.tty.ops.flush(stream.tty)},flush:function(stream){stream.tty.ops.flush(stream.tty)},read:function(stream,buffer,offset,length,pos){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:function(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:function(tty){if(!tty.input.length){var result=null;if(typeof window!="undefined"&&typeof window.prompt=="function"){result=window.prompt("Input: ");if(result!==null){result+="\n"}}else if(typeof readline=="function"){result=readline();if(result!==null){result+="\n"}}if(!result){return null}tty.input=intArrayFromString(result,true)}return tty.input.shift()},put_char:function(tty,val){if(val===null||val===10){out(UTF8ArrayToString(tty.output,0));tty.output=[]}else{if(val!=0)tty.output.push(val)}},flush:function(tty){if(tty.output&&tty.output.length>0){out(UTF8ArrayToString(tty.output,0));tty.output=[]}}},default_tty1_ops:{put_char:function(tty,val){if(val===null||val===10){err(UTF8ArrayToString(tty.output,0));tty.output=[]}else{if(val!=0)tty.output.push(val)}},flush:function(tty){if(tty.output&&tty.output.length>0){err(UTF8ArrayToString(tty.output,0));tty.output=[]}}}};function zeroMemory(address,size){HEAPU8.fill(0,address,address+size)}function mmapAlloc(size){abort("internal error: mmapAlloc called but `emscripten_builtin_memalign` native symbol not exported")}var MEMFS={ops_table:null,mount:function(mount){return MEMFS.createNode(null,"/",16384|511,0)},createNode:function(parent,name,mode,dev){if(FS.isBlkdev(mode)||FS.isFIFO(mode)){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;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();if(parent){parent.contents[name]=node;parent.timestamp=node.timestamp}return node},getFileDataAsTypedArray:function(node){if(!node.contents)return new Uint8Array(0);if(node.contents.subarray)return node.contents.subarray(0,node.usedBytes);return new Uint8Array(node.contents)},expandFileStorage:function(node,newCapacity){var prevCapacity=node.contents?node.contents.length:0;if(prevCapacity>=newCapacity)return;var CAPACITY_DOUBLING_MAX=1024*1024;newCapacity=Math.max(newCapacity,prevCapacity*(prevCapacity<CAPACITY_DOUBLING_MAX?2:1.125)>>>0);if(prevCapacity!=0)newCapacity=Math.max(newCapacity,256);var oldContents=node.contents;node.contents=new Uint8Array(newCapacity);if(node.usedBytes>0)node.contents.set(oldContents.subarray(0,node.usedBytes),0)},resizeFileStorage:function(node,newSize){if(node.usedBytes==newSize)return;if(newSize==0){node.contents=null;node.usedBytes=0}else{var oldContents=node.contents;node.contents=new Uint8Array(newSize);if(oldContents){node.contents.set(oldContents.subarray(0,Math.min(newSize,node.usedBytes)))}node.usedBytes=newSize}},node_ops:{getattr:function(node){var attr={};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);attr.blksize=4096;attr.blocks=Math.ceil(attr.size/attr.blksize);return attr},setattr:function(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:function(parent,name){throw FS.genericErrors[44]},mknod:function(parent,name,mode,dev){return MEMFS.createNode(parent,name,mode,dev)},rename:function(old_node,new_dir,new_name){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)}}}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:function(parent,name){delete parent.contents[name];parent.timestamp=Date.now()},rmdir:function(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:function(node){var entries=[".",".."];for(var key in node.contents){if(!node.contents.hasOwnProperty(key)){continue}entries.push(key)}return entries},symlink:function(parent,newname,oldpath){var node=MEMFS.createNode(parent,newname,511|40960,0);node.link=oldpath;return node},readlink:function(node){if(!FS.isLink(node.mode)){throw new FS.ErrnoError(28)}return node.link}},stream_ops:{read:function(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){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:function(stream,buffer,offset,length,position,canOwn){assert(!(buffer instanceof ArrayBuffer));if(buffer.buffer===HEAP8.buffer){canOwn=false}if(!length)return 0;var node=stream.node;node.timestamp=Date.now();if(buffer.subarray&&(!node.contents||node.contents.subarray)){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){node.contents=buffer.slice(offset,offset+length);node.usedBytes=length;return length}else if(position+length<=node.usedBytes){node.contents.set(buffer.subarray(offset,offset+length),position);return length}}MEMFS.expandFileStorage(node,position+length);if(node.contents.subarray&&buffer.subarray){node.contents.set(buffer.subarray(offset,offset+length),position)}else{for(var i=0;i<length;i++){node.contents[position+i]=buffer[offset+i]}}node.usedBytes=Math.max(node.usedBytes,position+length);return length},llseek:function(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:function(stream,offset,length){MEMFS.expandFileStorage(stream.node,offset+length);stream.node.usedBytes=Math.max(stream.node.usedBytes,offset+length)},mmap:function(stream,address,length,position,prot,flags){if(address!==0){throw new FS.ErrnoError(28)}if(!FS.isFile(stream.node.mode)){throw new FS.ErrnoError(43)}var ptr;var allocated;var contents=stream.node.contents;if(!(flags&2)&&contents.buffer===buffer){allocated=false;ptr=contents.byteOffset}else{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:ptr,allocated:allocated}},msync:function(stream,buffer,offset,length,mmapFlags){if(!FS.isFile(stream.node.mode)){throw new FS.ErrnoError(43)}if(mmapFlags&2){return 0}var bytesWritten=MEMFS.stream_ops.write(stream,buffer,0,length,offset,false);return 0}}};function asyncLoad(url,onload,onerror,noRunDep){var dep=!noRunDep?getUniqueRunDependency("al "+url):"";readAsync(url,function(arrayBuffer){assert(arrayBuffer,'Loading data file "'+url+'" failed (no arrayBuffer).');onload(new Uint8Array(arrayBuffer));if(dep)removeRunDependency(dep)},function(event){if(onerror){onerror()}else{throw'Loading data file "'+url+'" failed.'}});if(dep)addRunDependency(dep)}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 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(FS.cwd(),path);if(!path)return{path:"",node:null};var defaults={follow_mount:true,recurse_count:0};for(var key in defaults){if(opts[key]===undefined){opts[key]=defaults[key]}}if(opts.recurse_count>8){throw new FS.ErrnoError(32)}var parts=PATH.normalizeArray(path.split("/").filter(p=>!!p),false);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){break}current=FS.lookupNode(current,parts[i]);current_path=PATH.join2(current_path,parts[i]);if(FS.isMountpoint(current)){if(!islast||islast&&opts.follow_mount){current=current.mounted.root}}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});current=lookup.node;if(count++>40){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}}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},flagModes:{"r":0,"r+":2,"w":577,"w+":578,"a":1089,"a+":1090},modeStringToFlags:str=>{var flags=FS.flagModes[str];if(typeof flags=="undefined"){throw new Error("Unknown file open mode: "+str)}return flags},flagsToPermissionString:flag=>{var perms=["r","w","rw"][flag&3];if(flag&512){perms+="w"}return perms},nodePermissions:(node,perms)=>{if(FS.ignorePermissions){return 0}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"||flags&512){return 31}}return FS.nodePermissions(node,FS.flagsToPermissionString(flags))},MAX_OPEN_FDS:4096,nextfd:(fd_start=0,fd_end=FS.MAX_OPEN_FDS)=>{for(var fd=fd_start;fd<=fd_end;fd++){if(!FS.streams[fd]){return fd}}throw new FS.ErrnoError(33)},getStream:fd=>FS.streams[fd],createStream:(stream,fd_start,fd_end)=>{if(!FS.FSStream){FS.FSStream=function(){};FS.FSStream.prototype={object:{get:function(){return this.node},set:function(val){this.node=val}},isRead:{get:function(){return(this.flags&2097155)!==1}},isWrite:{get:function(){return(this.flags&2097155)!==0}},isAppend:{get:function(){return this.flags&1024}}}}stream=Object.assign(new FS.FSStream,stream);var fd=FS.nextfd(fd_start,fd_end);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);stream.stream_ops=device.stream_ops;if(stream.stream_ops.open){stream.stream_ops.open(stream)}},llseek:()=>{throw new FS.ErrnoError(70)}},major:dev=>dev>>8,minor:dev=>dev&255,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)}}mounts.forEach(mount=>{if(!mount.type.syncfs){return done(null)}mount.type.syncfs(mount,populate,done)})},mount:(type,opts,mountpoint)=>{if(typeof type=="string"){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;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:type,opts:opts,mountpoint:mountpoint,mounts:[]};var mountRoot=type.mount(mount);mountRoot.mount=mount;mount.root=mountRoot;if(root){FS.root=mountRoot}else if(node){node.mounted=mount;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)}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}});node.mounted=null;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;mode&=4095;mode|=32768;return FS.mknod(path,mode,0)},mkdir:(path,mode)=>{mode=mode!==undefined?mode:511;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}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);var lookup,old_dir,new_dir;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);if(old_dir.mount!==new_dir.mount){throw new FS.ErrnoError(75)}var old_node=FS.lookupNode(old_dir,old_name);var relative=PATH_FS.relative(old_path,new_dirname);if(relative.charAt(0)!=="."){throw new FS.ErrnoError(28)}relative=PATH_FS.relative(new_path,old_dirname);if(relative.charAt(0)!=="."){throw new FS.ErrnoError(55)}var new_node;try{new_node=FS.lookupNode(new_dir,new_name)}catch(e){}if(old_node===new_node){return}var isdir=FS.isDir(old_node.mode);var errCode=FS.mayDelete(old_dir,old_name,isdir);if(errCode){throw new FS.ErrnoError(errCode)}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(new_dir!==old_dir){errCode=FS.nodePermissions(old_dir,"w");if(errCode){throw new FS.ErrnoError(errCode)}}FS.hashRemoveNode(old_node);try{old_dir.node_ops.rename(old_node,new_dir,new_name)}catch(e){throw e}finally{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){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.getStream(fd);if(!stream){throw new FS.ErrnoError(8)}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()})},lchown:(path,uid,gid)=>{FS.chown(path,uid,gid,true)},fchown:(fd,uid,gid)=>{var stream=FS.getStream(fd);if(!stream){throw new FS.ErrnoError(8)}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.getStream(fd);if(!stream){throw new FS.ErrnoError(8)}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,fd_start,fd_end)=>{if(path===""){throw new FS.ErrnoError(44)}flags=typeof flags=="string"?FS.modeStringToFlags(flags):flags;mode=typeof mode=="undefined"?438: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){}}var created=false;if(flags&64){if(node){if(flags&128){throw new FS.ErrnoError(20)}}else{node=FS.mknod(path,mode,0);created=true}}if(!node){throw new FS.ErrnoError(44)}if(FS.isChrdev(node.mode)){flags&=~512}if(flags&65536&&!FS.isDir(node.mode)){throw new FS.ErrnoError(54)}if(!created){var errCode=FS.mayOpen(node,flags);if(errCode){throw new FS.ErrnoError(errCode)}}if(flags&512){FS.truncate(node,0)}flags&=~(128|512|131072);var stream=FS.createStream({node:node,path:FS.getPath(node),flags:flags,seekable:true,position:0,stream_ops:node.stream_ops,ungotten:[],error:false},fd_start,fd_end);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;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)=>{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)=>{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){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,address,length,position,prot,flags)=>{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,address,length,position,prot,flags)},msync:(stream,buffer,offset,length,mmapFlags)=>{if(!stream||!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:()=>{FS.mkdir("/dev");FS.registerDevice(FS.makedev(1,3),{read:()=>0,write:(stream,buffer,offset,length,pos)=>length});FS.mkdev("/dev/null",FS.makedev(1,3));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));var random_device=getRandomDevice();FS.createDevice("/dev","random",random_device);FS.createDevice("/dev","urandom",random_device);FS.mkdir("/dev/shm");FS.mkdir("/dev/shm/tmp")},createSpecialDirectories:()=>{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|511,73);node.node_ops={lookup:(parent,name)=>{var fd=+name;var stream=FS.getStream(fd);if(!stream)throw new FS.ErrnoError(8);var ret={parent:null,mount:{mountpoint:"fake"},node_ops:{readlink:()=>stream.path}};ret.parent=ret;return ret}};return node}},{},"/proc/self/fd")},createStandardStreams:()=>{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")}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=function ErrnoError(errno,node){this.node=node;this.setErrno=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];if(this.stack){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;[44].forEach(code=>{FS.genericErrors[code]=new FS.ErrnoError(code);FS.genericErrors[code].stack="<generic error, no 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();Module["stdin"]=input||Module["stdin"];Module["stdout"]=output||Module["stdout"];Module["stderr"]=error||Module["stderr"];FS.createStandardStreams()},quit:()=>{FS.init.initialized=false;___stdio_exit();for(var i=0;i<FS.streams.length;i++){var stream=FS.streams[i];if(!stream){continue}FS.close(stream)}},getMode:(canRead,canWrite)=>{var mode=0;if(canRead)mode|=292|73;if(canWrite)mode|=146;return mode},findObject:(path,dontResolveLastLink)=>{var ret=FS.analyzePath(path,dontResolveLastLink);if(ret.exists){return ret.object}else{return null}},analyzePath:(path,dontResolveLastLink)=>{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){}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}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);FS.registerDevice(dev,{open:stream=>{stream.seekable=false},close:stream=>{if(output&&output.buffer&&output.buffer.length){output(10)}},read:(stream,buffer,offset,length,pos)=>{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_){try{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)=>{function LazyUint8Array(){this.lengthKnown=false;this.chunks=[]}LazyUint8Array.prototype.get=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(){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;if(!hasByteServing)chunkSize=datalength;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!");var xhr=new XMLHttpRequest;xhr.open("GET",url,false);if(datalength!==chunkSize)xhr.setRequestHeader("Range","bytes="+from+"-"+to);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(xhr.response||[])}else{return intArrayFromString(xhr.responseText||"",true)}};var lazyArray=this;lazyArray.setDataGetter(chunkNum=>{var start=chunkNum*chunkSize;var end=(chunkNum+1)*chunkSize-1;end=Math.min(end,datalength-1);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){chunkSize=datalength=1;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:function(){if(!this.lengthKnown){this.cacheLength()}return this._length}},chunkSize:{get: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);if(properties.contents){node.contents=properties.contents}else if(properties.url){node.contents=null;node.url=properties.url}Object.defineProperties(node,{usedBytes:{get:function(){return this.contents.length}}});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)}});stream_ops.read=((stream,buffer,offset,length,position)=>{FS.forceLoadFile(node);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){for(var i=0;i<size;i++){buffer[offset+i]=contents[position+i]}}else{for(var i=0;i<size;i++){buffer[offset+i]=contents.get(position+i)}}return size});node.stream_ops=stream_ops;return node},createPreloadedFile:(parent,name,url,canRead,canWrite,onload,onerror,dontCreateFile,canOwn,preFinish)=>{var fullname=name?PATH_FS.resolve(PATH.join2(parent,name)):parent;var dep=getUniqueRunDependency("cp "+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(Browser.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)}},indexedDB:()=>{return window.indexedDB||window.mozIndexedDB||window.webkitIndexedDB||window.msIndexedDB},DB_NAME:()=>{return"EM_FS_"+window.location.pathname},DB_VERSION:20,DB_STORE_NAME:"FILE_DATA",saveFilesToDB:(paths,onload,onerror)=>{onload=onload||(()=>{});onerror=onerror||(()=>{});var indexedDB=FS.indexedDB();try{var openRequest=indexedDB.open(FS.DB_NAME(),FS.DB_VERSION)}catch(e){return onerror(e)}openRequest.onupgradeneeded=(()=>{out("creating db");var db=openRequest.result;db.createObjectStore(FS.DB_STORE_NAME)});openRequest.onsuccess=(()=>{var db=openRequest.result;var transaction=db.transaction([FS.DB_STORE_NAME],"readwrite");var files=transaction.objectStore(FS.DB_STORE_NAME);var ok=0,fail=0,total=paths.length;function finish(){if(fail==0)onload();else onerror()}paths.forEach(path=>{var putRequest=files.put(FS.analyzePath(path).object.contents,path);putRequest.onsuccess=(()=>{ok++;if(ok+fail==total)finish()});putRequest.onerror=(()=>{fail++;if(ok+fail==total)finish()})});transaction.onerror=onerror});openRequest.onerror=onerror},loadFilesFromDB:(paths,onload,onerror)=>{onload=onload||(()=>{});onerror=onerror||(()=>{});var indexedDB=FS.indexedDB();try{var openRequest=indexedDB.open(FS.DB_NAME(),FS.DB_VERSION)}catch(e){return onerror(e)}openRequest.onupgradeneeded=onerror;openRequest.onsuccess=(()=>{var db=openRequest.result;try{var transaction=db.transaction([FS.DB_STORE_NAME],"readonly")}catch(e){onerror(e);return}var files=transaction.objectStore(FS.DB_STORE_NAME);var ok=0,fail=0,total=paths.length;function finish(){if(fail==0)onload();else onerror()}paths.forEach(path=>{var getRequest=files.get(path);getRequest.onsuccess=(()=>{if(FS.analyzePath(path).exists){FS.unlink(path)}FS.createDataFile(PATH.dirname(path),PATH.basename(path),getRequest.result,true,true,true);ok++;if(ok+fail==total)finish()});getRequest.onerror=(()=>{fail++;if(ok+fail==total)finish()})});transaction.onerror=onerror});openRequest.onerror=onerror},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:function(dirfd,path,allowEmpty){if(path[0]==="/"){return path}var dir;if(dirfd===-100){dir=FS.cwd()}else{var dirstream=FS.getStream(dirfd);if(!dirstream)throw new FS.ErrnoError(8);dir=dirstream.path}if(path.length==0){if(!allowEmpty){throw new FS.ErrnoError(44)}return dir}return PATH.join2(dir,path)},doStat:function(func,path,buf){try{var stat=func(path)}catch(e){if(e&&e.node&&PATH.normalize(path)!==PATH.normalize(FS.getPath(e.node))){return-54}throw e}HEAP32[buf>>2]=stat.dev;HEAP32[buf+4>>2]=0;HEAP32[buf+8>>2]=stat.ino;HEAP32[buf+12>>2]=stat.mode;HEAP32[buf+16>>2]=stat.nlink;HEAP32[buf+20>>2]=stat.uid;HEAP32[buf+24>>2]=stat.gid;HEAP32[buf+28>>2]=stat.rdev;HEAP32[buf+32>>2]=0;tempI64=[stat.size>>>0,(tempDouble=stat.size,+Math.abs(tempDouble)>=1?tempDouble>0?(Math.min(+Math.floor(tempDouble/4294967296),4294967295)|0)>>>0:~~+Math.ceil((tempDouble-+(~~tempDouble>>>0))/4294967296)>>>0:0)],HEAP32[buf+40>>2]=tempI64[0],HEAP32[buf+44>>2]=tempI64[1];HEAP32[buf+48>>2]=4096;HEAP32[buf+52>>2]=stat.blocks;HEAP32[buf+56>>2]=stat.atime.getTime()/1e3|0;HEAP32[buf+60>>2]=0;HEAP32[buf+64>>2]=stat.mtime.getTime()/1e3|0;HEAP32[buf+68>>2]=0;HEAP32[buf+72>>2]=stat.ctime.getTime()/1e3|0;HEAP32[buf+76>>2]=0;tempI64=[stat.ino>>>0,(tempDouble=stat.ino,+Math.abs(tempDouble)>=1?tempDouble>0?(Math.min(+Math.floor(tempDouble/4294967296),4294967295)|0)>>>0:~~+Math.ceil((tempDouble-+(~~tempDouble>>>0))/4294967296)>>>0:0)],HEAP32[buf+80>>2]=tempI64[0],HEAP32[buf+84>>2]=tempI64[1];return 0},doMsync:function(addr,stream,len,flags,offset){var buffer=HEAPU8.slice(addr,addr+len);FS.msync(stream,buffer,offset,len,flags)},doMkdir:function(path,mode){path=PATH.normalize(path);if(path[path.length-1]==="/")path=path.substr(0,path.length-1);FS.mkdir(path,mode,0);return 0},doMknod:function(path,mode,dev){switch(mode&61440){case 32768:case 8192:case 24576:case 4096:case 49152:break;default:return-28}FS.mknod(path,mode,dev);return 0},doReadlink:function(path,buf,bufsize){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);HEAP8[buf+len]=endChar;return len},doAccess:function(path,amode){if(amode&~7){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&&FS.nodePermissions(node,perms)){return-2}return 0},doDup:function(path,flags,suggestFD){var suggest=FS.getStream(suggestFD);if(suggest)FS.close(suggest);return FS.open(path,flags,0,suggestFD,suggestFD).fd},doReadv:function(stream,iov,iovcnt,offset){var ret=0;for(var i=0;i<iovcnt;i++){var ptr=HEAP32[iov+i*8>>2];var len=HEAP32[iov+(i*8+4)>>2];var curr=FS.read(stream,HEAP8,ptr,len,offset);if(curr<0)return-1;ret+=curr;if(curr<len)break}return ret},doWritev:function(stream,iov,iovcnt,offset){var ret=0;for(var i=0;i<iovcnt;i++){var ptr=HEAP32[iov+i*8>>2];var len=HEAP32[iov+(i*8+4)>>2];var curr=FS.write(stream,HEAP8,ptr,len,offset);if(curr<0)return-1;ret+=curr}return ret},varargs:undefined,get:function(){assert(SYSCALLS.varargs!=undefined);SYSCALLS.varargs+=4;var ret=HEAP32[SYSCALLS.varargs-4>>2];return ret},getStr:function(ptr){var ret=UTF8ToString(ptr);return ret},getStreamFromFD:function(fd){var stream=FS.getStream(fd);if(!stream)throw new FS.ErrnoError(8);return stream},get64:function(low,high){if(low>=0)assert(high===0);else assert(high===-1);return low}};function ___syscall__newselect(nfds,readfds,writefds,exceptfds,timeout){try{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}var stream=FS.getStream(fd);if(!stream)throw new FS.ErrnoError(8);var flags=SYSCALLS.DEFAULT_POLLMASK;if(stream.stream_ops.poll){flags=stream.stream_ops.poll(stream)}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 instanceof FS.ErrnoError))throw e;return-e.errno}}var SOCKFS={mount:function(mount){Module["websocket"]=Module["websocket"]&&"object"===typeof Module["websocket"]?Module["websocket"]:{};Module["websocket"]._callbacks={};Module["websocket"]["on"]=function(event,callback){if("function"===typeof callback){this._callbacks[event]=callback}return this};Module["websocket"].emit=function(event,param){if("function"===typeof this._callbacks[event]){this._callbacks[event].call(this,param)}};return FS.createNode(null,"/",16384|511,0)},createSocket:function(family,type,protocol){type&=~526336;var streaming=type==1;if(protocol){assert(streaming==(protocol==6))}var sock={family:family,type:type,protocol:protocol,server:null,error:null,peers:{},pending:[],recv_queue:[],sock_ops:SOCKFS.websocket_sock_ops};var name=SOCKFS.nextname();var node=FS.createNode(SOCKFS.root,name,49152,0);node.sock=sock;var stream=FS.createStream({path:name,node:node,flags:2,seekable:false,stream_ops:SOCKFS.stream_ops});sock.stream=stream;return sock},getSocket:function(fd){var stream=FS.getStream(fd);if(!stream||!FS.isSocket(stream.node.mode)){return null}return stream.node.sock},stream_ops:{poll:function(stream){var sock=stream.node.sock;return sock.sock_ops.poll(sock)},ioctl:function(stream,request,varargs){var sock=stream.node.sock;return sock.sock_ops.ioctl(sock,request,varargs)},read:function(stream,buffer,offset,length,position){var sock=stream.node.sock;var msg=sock.sock_ops.recvmsg(sock,length);if(!msg){return 0}buffer.set(msg.buffer,offset);return msg.buffer.length},write:function(stream,buffer,offset,length,position){var sock=stream.node.sock;return sock.sock_ops.sendmsg(sock,buffer,offset,length)},close:function(stream){var sock=stream.node.sock;sock.sock_ops.close(sock)}},nextname:function(){if(!SOCKFS.nextname.current){SOCKFS.nextname.current=0}return"socket["+SOCKFS.nextname.current+++"]"},websocket_sock_ops:{createPeer:function(sock,addr,port){var ws;if(typeof addr=="object"){ws=addr;addr=null;port=null}if(ws){if(ws._socket){addr=ws._socket.remoteAddress;port=ws._socket.remotePort}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{try{var runtimeConfig=Module["websocket"]&&"object"===typeof Module["websocket"];var url="ws:#".replace("#","//");if(runtimeConfig){if("string"===typeof Module["websocket"]["url"]){url=Module["websocket"]["url"]}}if(url==="ws://"||url==="wss://"){var parts=addr.split("/");url=url+parts[0]+":"+port+"/"+parts.slice(1).join("/")}var subProtocols="binary";if(runtimeConfig){if("string"===typeof Module["websocket"]["subprotocol"]){subProtocols=Module["websocket"]["subprotocol"]}}var opts=undefined;var parts = addr.split("/");
if (!url.endsWith("/")) url += "/";
url += parts[0] + ":" + port;if(subProtocols!=="null"){subProtocols=subProtocols.replace(/^ +| +$/g,"").split(/ *, */);opts=ENVIRONMENT_IS_NODE?{"protocol":subProtocols.toString()}:subProtocols}if(runtimeConfig&&null===Module["websocket"]["subprotocol"]){subProtocols="null";opts=undefined}var WebSocketConstructor;{WebSocketConstructor=WebSocket}try {
  if (api.transport === "wisp") {
    ws = new WispWebSocket(url);
  }
  else if (api.transport === "wsproxy") {
    ws = new WebSocket(url);
  }
  else if (typeof api.transport === "string") {
    throw new TypeError("invalid transport type");
  }
  else { //custom transports
    ws = new api.transport(url);
  }
}
catch (e) {
  error_msg("Error while creating a TCP connection: " + e);
  throw e;
};ws.binaryType="arraybuffer"}catch(e){throw new FS.ErrnoError(23)}}var peer={addr:addr,port:port,socket:ws,dgram_send_queue:[]};SOCKFS.websocket_sock_ops.addPeer(sock,peer);SOCKFS.websocket_sock_ops.handlePeerEvents(sock,peer);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&65280)>>8,sock.sport&255]))}return peer},getPeer:function(sock,addr,port){return sock.peers[addr+":"+port]},addPeer:function(sock,peer){sock.peers[peer.addr+":"+peer.port]=peer},removePeer:function(sock,peer){delete sock.peers[peer.addr+":"+peer.port]},handlePeerEvents:function(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){peer.socket.close()}};function handleMessage(data){if(typeof data=="string"){var encoder=new TextEncoder;data=encoder.encode(data)}else{assert(data.byteLength!==undefined);if(data.byteLength==0){return}else{data=new Uint8Array(data)}}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)){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,flags){if(!flags.binary){return}handleMessage(new Uint8Array(data).buffer)});peer.socket.on("close",function(){Module["websocket"].emit("close",sock.stream.fd)});peer.socket.on("error",function(error){sock.error=14;Module["websocket"].emit("error",[sock.stream.fd,sock.error,"ECONNREFUSED: Connection refused"])})}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){sock.error=14;Module["websocket"].emit("error",[sock.stream.fd,sock.error,"ECONNREFUSED: Connection refused"])}}},poll:function(sock){if(sock.type===1&&sock.server){return sock.pending.length?64|1:0}var mask=0;var dest=sock.type===1?SOCKFS.websocket_sock_ops.getPeer(sock,sock.daddr,sock.dport):null;if(sock.recv_queue.length||!dest||dest&&dest.socket.readyState===dest.socket.CLOSING||dest&&dest.socket.readyState===dest.socket.CLOSED){mask|=64|1}if(!dest||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:function(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:function(sock){if(sock.server){try{sock.server.close()}catch(e){}sock.server=null}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:function(sock,addr,port){if(typeof sock.saddr!="undefined"||typeof sock.sport!="undefined"){throw new FS.ErrnoError(28)}sock.saddr=addr;sock.sport=port;if(sock.type===2){if(sock.server){sock.server.close();sock.server=null}try{sock.sock_ops.listen(sock,0)}catch(e){if(!(e instanceof FS.ErrnoError))throw e;if(e.errno!==138)throw e}}},connect:function(sock,addr,port){if(sock.server){throw new FS.ErrnoError(138)}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)}}}var peer=SOCKFS.websocket_sock_ops.createPeer(sock,addr,port);sock.daddr=peer.addr;sock.dport=peer.port;throw new FS.ErrnoError(26)},listen:function(sock,backlog){if(!ENVIRONMENT_IS_NODE){throw new FS.ErrnoError(138)}},accept:function(listensock){if(!listensock.server){throw new FS.ErrnoError(28)}var newsock=listensock.pending.shift();newsock.stream.flags=listensock.stream.flags;return newsock},getname:function(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{addr=sock.saddr||0;port=sock.sport||0}return{addr:addr,port:port}},sendmsg:function(sock,buffer,offset,length,addr,port){if(sock.type===2){if(addr===undefined||port===undefined){addr=sock.daddr;port=sock.dport}if(addr===undefined||port===undefined){throw new FS.ErrnoError(17)}}else{addr=sock.daddr;port=sock.dport}var dest=SOCKFS.websocket_sock_ops.getPeer(sock,addr,port);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)}}if(ArrayBuffer.isView(buffer)){offset+=buffer.byteOffset;buffer=buffer.buffer}var data;data=buffer.slice(offset,offset+length);if(sock.type===2){if(!dest||dest.socket.readyState!==dest.socket.OPEN){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{dest.socket.send(data);return length}catch(e){throw new FS.ErrnoError(28)}},recvmsg:function(sock,length){if(sock.type===1&&sock.server){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){throw new FS.ErrnoError(53)}else if(dest.socket.readyState===dest.socket.CLOSING||dest.socket.readyState===dest.socket.CLOSED){return null}else{throw new FS.ErrnoError(6)}}else{throw new FS.ErrnoError(6)}}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};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}}};function getSocketFromFD(fd){var socket=SOCKFS.getSocket(fd);if(!socket)throw new FS.ErrnoError(8);return socket}function setErrNo(value){HEAP32[___errno_location()>>2]=value;return value}function inetNtop4(addr){return(addr&255)+"."+(addr>>8&255)+"."+(addr>>16&255)+"."+(addr>>24&255)}function inetNtop6(ints){var str="";var word=0;var longest=0;var lastzero=0;var zstart=0;var len=0;var i=0;var parts=[ints[0]&65535,ints[0]>>16,ints[1]&65535,ints[1]>>16,ints[2]&65535,ints[2]>>16,ints[3]&65535,ints[3]>>16];var hasipv4=true;var v4part="";for(i=0;i<5;i++){if(parts[i]!==0){hasipv4=false;break}}if(hasipv4){v4part=inetNtop4(parts[6]|parts[7]<<16);if(parts[5]===-1){str="::ffff:";str+=v4part;return str}if(parts[5]===0){str="::";if(v4part==="0.0.0.0")v4part="";if(v4part==="0.0.0.1")v4part="1";str+=v4part;return str}}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){if(parts[word]===0&&word>=zstart&&word<zstart+longest){if(word===zstart){str+=":";if(zstart===0)str+=":"}continue}}str+=Number(_ntohs(parts[word]&65535)).toString(16);str+=word<7?":":""}return str}function readSockaddr(sa,salen){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}}function 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}function jstoi_q(str){return parseInt(str)}function inetPton6(str){var words;var w,offset,z;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]}if(str.startsWith("::")){str=str.replace("::","Z:")}else{str=str.replace("::",":Z:")}if(str.indexOf(".")>0){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"){for(z=0;z<8-words.length+1;z++){parts[w+z]=0}offset=z-1}else{parts[w+offset]=_htons(parseInt(words[w],16))}}else{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]]}var DNS={address_map:{id:1,addrs:{},names:{}},lookup_name:function(name){var res=inetPton4(name);if(res!==null){return name}res=inetPton6(name);if(res!==null){return name}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&255)+"."+(id&65280);DNS.address_map.names[addr]=name;DNS.address_map.addrs[name]=addr}return addr},lookup_addr:function(addr){if(DNS.address_map.names[addr]){return DNS.address_map.names[addr]}return null}};function 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){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 instanceof FS.ErrnoError))throw e;return-e.errno}}function ___syscall_connect(fd,addr,addrlen){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 instanceof FS.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}var newStream;newStream=FS.open(stream.path,stream.flags,0,arg);return newStream.fd}case 1:case 2:return 0;case 3:return stream.flags;case 4:{var arg=SYSCALLS.get();stream.flags|=arg;return 0}case 5:{var arg=SYSCALLS.get();var offset=0;HEAP16[arg+offset>>1]=2;return 0}case 6:case 7:return 0;case 16:case 8:return-28;case 9:setErrNo(28);return-1;default:{return-28}}}catch(e){if(typeof FS=="undefined"||!(e instanceof FS.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 instanceof FS.ErrnoError))throw e;return-e.errno}}function ___syscall_fstatat64(dirfd,path,buf,flags){try{path=SYSCALLS.getStr(path);var nofollow=flags&256;var allowEmpty=flags&4096;flags=flags&~4352;assert(!flags,flags);path=SYSCALLS.calculateAt(dirfd,path,allowEmpty);return SYSCALLS.doStat(nofollow?FS.lstat:FS.stat,path,buf)}catch(e){if(typeof FS=="undefined"||!(e instanceof FS.ErrnoError))throw e;return-e.errno}}function ___syscall_getcwd(buf,size){try{if(size===0)return-28;var cwd=FS.cwd();var cwdLengthInBytes=lengthBytesUTF8(cwd);if(size<cwdLengthInBytes+1)return-68;stringToUTF8(cwd,buf,size);return buf}catch(e){if(typeof FS=="undefined"||!(e instanceof FS.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}else if(name===".."){var lookup=FS.lookupPath(stream.path,{parent:true});id=lookup.node.id;type=4}else{var child=FS.lookupNode(stream.node,name);id=child.id;type=FS.isChrdev(child.mode)?2:FS.isDir(child.mode)?4:FS.isLink(child.mode)?10:8}assert(id);tempI64=[id>>>0,(tempDouble=id,+Math.abs(tempDouble)>=1?tempDouble>0?(Math.min(+Math.floor(tempDouble/4294967296),4294967295)|0)>>>0:~~+Math.ceil((tempDouble-+(~~tempDouble>>>0))/4294967296)>>>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?tempDouble>0?(Math.min(+Math.floor(tempDouble/4294967296),4294967295)|0)>>>0:~~+Math.ceil((tempDouble-+(~~tempDouble>>>0))/4294967296)>>>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 instanceof FS.ErrnoError))throw e;return-e.errno}}function 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}function ___syscall_getsockname(fd,addr,addrlen){try{var sock=getSocketFromFD(fd);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 instanceof FS.ErrnoError))throw e;return-e.errno}}function ___syscall_getsockopt(fd,level,optname,optval,optlen){try{var sock=getSocketFromFD(fd);if(level===1){if(optname===4){HEAP32[optval>>2]=sock.error;HEAP32[optlen>>2]=4;sock.error=null;return 0}}return-50}catch(e){if(typeof FS=="undefined"||!(e instanceof FS.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:case 21505:{if(!stream.tty)return-59;return 0}case 21510:case 21511:case 21512:case 21506:case 21507:case 21508:{if(!stream.tty)return-59;return 0}case 21519:{if(!stream.tty)return-59;var argp=SYSCALLS.get();HEAP32[argp>>2]=0;return 0}case 21520:{if(!stream.tty)return-59;return-28}case 21531:{var argp=SYSCALLS.get();return FS.ioctl(stream,op,argp)}case 21523:{if(!stream.tty)return-59;return 0}case 21524:{if(!stream.tty)return-59;return 0}default:abort("bad ioctl syscall "+op)}}catch(e){if(typeof FS=="undefined"||!(e instanceof FS.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 instanceof FS.ErrnoError))throw e;return-e.errno}}function ___syscall_open(path,flags,varargs){SYSCALLS.varargs=varargs;try{var pathname=SYSCALLS.getStr(path);var mode=varargs?SYSCALLS.get():0;var stream=FS.open(pathname,flags,mode);return stream.fd}catch(e){if(typeof FS=="undefined"||!(e instanceof FS.ErrnoError))throw e;return-e.errno}}var PIPEFS={BUCKET_BUFFER_SIZE:8192,mount:function(mount){return FS.createNode(null,"/",16384|511,0)},createPipe:function(){var pipe={buckets:[],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:function(stream){var pipe=stream.node.pipe;if((stream.flags&2097155)===1){return 256|4}else{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:function(stream,request,varargs){return 28},fsync:function(stream){return 28},read:function(stream,buffer,offset,length,position){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){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){toRemove--;pipe.buckets[toRemove].offset=0;pipe.buckets[toRemove].roffset=0}pipe.buckets.splice(0,toRemove);return totalRead},write:function(stream,buffer,offset,length,position){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:function(stream){var pipe=stream.node.pipe;pipe.refcnt--;if(pipe.refcnt===0){pipe.buckets=null}}},nextname:function(){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 instanceof FS.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)}}mask&=events|8|16;if(mask)nonzero++;HEAP16[pollfd+6>>1]=mask}return nonzero}catch(e){if(typeof FS=="undefined"||!(e instanceof FS.ErrnoError))throw e;return-e.errno}}function ___syscall_readlink(path,buf,bufsize){try{path=SYSCALLS.getStr(path);return SYSCALLS.doReadlink(path,buf,bufsize)}catch(e){if(typeof FS=="undefined"||!(e instanceof FS.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;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 instanceof FS.ErrnoError))throw e;return-e.errno}}function ___syscall_rename(old_path,new_path){try{old_path=SYSCALLS.getStr(old_path);new_path=SYSCALLS.getStr(new_path);FS.rename(old_path,new_path);return 0}catch(e){if(typeof FS=="undefined"||!(e instanceof FS.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 instanceof FS.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){return FS.write(sock.stream,HEAP8,message,length)}else{return sock.sock_ops.sendmsg(sock,HEAP8,message,length,dest.addr,dest.port)}}catch(e){if(typeof FS=="undefined"||!(e instanceof FS.ErrnoError))throw e;return-e.errno}}function ___syscall_socket(domain,type,protocol){try{var sock=SOCKFS.createSocket(domain,type,protocol);return sock.stream.fd}catch(e){if(typeof FS=="undefined"||!(e instanceof FS.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 instanceof FS.ErrnoError))throw e;return-e.errno}}function ___syscall_unlink(path){try{path=SYSCALLS.getStr(path);FS.unlink(path);return 0}catch(e){if(typeof FS=="undefined"||!(e instanceof FS.ErrnoError))throw e;return-e.errno}}function __emscripten_throw_longjmp(){throw Infinity}function __gmtime_js(time,tmPtr){var date=new Date(HEAP32[time>>2]*1e3);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)/(1e3*60*60*24)|0;HEAP32[tmPtr+28>>2]=yday}function _tzset_impl(timezone,daylight,tzname){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();var stdTimezoneOffset=Math.max(winterOffset,summerOffset);HEAP32[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=allocateUTF8(winterName);var summerNamePtr=allocateUTF8(summerName);if(summerOffset<winterOffset){HEAP32[tzname>>2]=winterNamePtr;HEAP32[tzname+4>>2]=summerNamePtr}else{HEAP32[tzname>>2]=summerNamePtr;HEAP32[tzname+4>>2]=winterNamePtr}}function __tzset_js(timezone,daylight,tzname){if(__tzset_js.called)return;__tzset_js.called=true;_tzset_impl(timezone,daylight,tzname)}function callUserCallback(func,synchronous){if(runtimeExited||ABORT){err("user callback triggered after runtime exited or application aborted.  Ignoring.");return}if(synchronous){func();return}try{func()}catch(e){handleException(e)}}function _alarm(seconds){setTimeout(function(){callUserCallback(function(){_raise(14)})},seconds*1e3)}var _emscripten_get_now;_emscripten_get_now=(()=>performance.now());var _emscripten_get_now_is_monotonic=true;function _clock_gettime(clk_id,tp){var now;if(clk_id===0){now=Date.now()}else if((clk_id===1||clk_id===4)&&_emscripten_get_now_is_monotonic){now=_emscripten_get_now()}else{setErrNo(28);return-1}HEAP32[tp>>2]=now/1e3|0;HEAP32[tp+4>>2]=now%1e3*1e3*1e3|0;return 0}function _emscripten_console_error(str){assert(typeof str=="number");console.error(UTF8ToString(str))}function _emscripten_get_heap_max(){return 2147483648}function emscripten_realloc_buffer(size){try{wasmMemory.grow(size-buffer.byteLength+65535>>>16);updateGlobalBufferAndViews(wasmMemory.buffer);return 1}catch(e){err("emscripten_realloc_buffer: Attempted to grow heap from "+buffer.byteLength+" bytes to "+size+" bytes, but got error: "+e)}}function _emscripten_resize_heap(requestedSize){var oldSize=HEAPU8.length;requestedSize=requestedSize>>>0;assert(requestedSize>oldSize);var maxHeapSize=_emscripten_get_heap_max();if(requestedSize>maxHeapSize){err("Cannot enlarge memory, asked to go up to "+requestedSize+" bytes, but the limit is "+maxHeapSize+" bytes!");return false}let alignUp=(x,multiple)=>x+(multiple-x%multiple)%multiple;for(var cutDown=1;cutDown<=4;cutDown*=2){var overGrownHeapSize=oldSize*(1+.2/cutDown);overGrownHeapSize=Math.min(overGrownHeapSize,requestedSize+100663296);var newSize=Math.min(maxHeapSize,alignUp(Math.max(requestedSize,overGrownHeapSize),65536));var replacement=emscripten_realloc_buffer(newSize);if(replacement){return true}}err("Failed to grow the heap from "+oldSize+" bytes to "+newSize+" bytes, not enough memory!");return false}var ENV={};function getExecutableName(){return thisProgram||"./this.program"}function getEnvStrings(){if(!getEnvStrings.strings){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()};for(var x in ENV){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}function _environ_get(__environ,environ_buf){var bufSize=0;getEnvStrings().forEach(function(string,i){var ptr=environ_buf+bufSize;HEAP32[__environ+i*4>>2]=ptr;writeAsciiToMemory(string,ptr);bufSize+=string.length+1});return 0}function _environ_sizes_get(penviron_count,penviron_buf_size){var strings=getEnvStrings();HEAP32[penviron_count>>2]=strings.length;var bufSize=0;strings.forEach(function(string){bufSize+=string.length+1});HEAP32[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 instanceof FS.ErrnoError))throw e;return e.errno}}function _fd_read(fd,iov,iovcnt,pnum){try{var stream=SYSCALLS.getStreamFromFD(fd);var num=SYSCALLS.doReadv(stream,iov,iovcnt);HEAP32[pnum>>2]=num;return 0}catch(e){if(typeof FS=="undefined"||!(e instanceof FS.ErrnoError))throw e;return e.errno}}function _fd_seek(fd,offset_low,offset_high,whence,newOffset){try{var stream=SYSCALLS.getStreamFromFD(fd);var HIGH_OFFSET=4294967296;var offset=offset_high*HIGH_OFFSET+(offset_low>>>0);var DOUBLE_LIMIT=9007199254740992;if(offset<=-DOUBLE_LIMIT||offset>=DOUBLE_LIMIT){return-61}FS.llseek(stream,offset,whence);tempI64=[stream.position>>>0,(tempDouble=stream.position,+Math.abs(tempDouble)>=1?tempDouble>0?(Math.min(+Math.floor(tempDouble/4294967296),4294967295)|0)>>>0:~~+Math.ceil((tempDouble-+(~~tempDouble>>>0))/4294967296)>>>0:0)],HEAP32[newOffset>>2]=tempI64[0],HEAP32[newOffset+4>>2]=tempI64[1];if(stream.getdents&&offset===0&&whence===0)stream.getdents=null;return 0}catch(e){if(typeof FS=="undefined"||!(e instanceof FS.ErrnoError))throw e;return e.errno}}function _fd_write(fd,iov,iovcnt,pnum){try{var stream=SYSCALLS.getStreamFromFD(fd);var num=SYSCALLS.doWritev(stream,iov,iovcnt);HEAP32[pnum>>2]=num;return 0}catch(e){if(typeof FS=="undefined"||!(e instanceof FS.ErrnoError))throw e;return e.errno}}function _getTempRet0(){return getTempRet0()}function _getaddrinfo(node,service,hint,out){var addr=0;var port=0;var flags=0;var family=0;var type=0;var proto=0;var ai;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;HEAP32[ai+24>>2]=canon;HEAP32[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(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){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}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);HEAP32[out>>2]=ai;return 0}node=UTF8ToString(node);addr=inetPton4(node);if(addr!==null){if(family===0||family===2){family=2}else if(family===10&&flags&8){addr=[0,0,_htonl(65535),addr];family=10}else{return-2}}else{addr=inetPton6(node);if(addr!==null){if(family===0||family===10){family=10}else{return-2}}}if(addr!=null){ai=allocaddrinfo(family,type,proto,node,addr,port);HEAP32[out>>2]=ai;return 0}if(flags&4){return-2}node=DNS.lookup_name(node);addr=inetPton4(node);if(family===0){family=2}else if(family===10){addr=[0,0,_htonl(65535),addr]}ai=allocaddrinfo(family,type,proto,null,addr,port);HEAP32[out>>2]=ai;return 0}function _gettimeofday(ptr){var now=Date.now();HEAP32[ptr>>2]=now/1e3|0;HEAP32[ptr+4>>2]=now%1e3*1e3|0;return 0}function _setTempRet0(val){setTempRet0(val)}function __isLeapYear(year){return year%4===0&&(year%100!==0||year%400===0)}function __arraySum(array,index){var sum=0;for(var i=0;i<=index;sum+=array[i++]){}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];function __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()){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{newDate.setDate(newDate.getDate()+days);return newDate}}return newDate}function _strftime(s,maxsize,format,tm){var tm_zone=HEAP32[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);var EXPANSION_RULES_1={"%c":"%a %b %d %H:%M:%S %Y","%D":"%m/%d/%y","%F":"%Y-%m-%d","%h":"%b","%r":"%I:%M:%S %p","%R":"%H:%M","%T":"%H:%M:%S","%x":"%m/%d/%y","%X":"%H:%M:%S","%Ec":"%c","%EC":"%C","%Ex":"%m/%d/%y","%EX":"%H:%M:%S","%Ey":"%y","%EY":"%Y","%Od":"%d","%Oe":"%e","%OH":"%H","%OI":"%I","%Om":"%m","%OM":"%M","%OS":"%S","%Ou":"%u","%OU":"%U","%OV":"%V","%Ow":"%w","%OW":"%W","%Oy":"%y"};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:return new Date(janFourth.getFullYear()-1,11,29);case 1:return janFourth;case 2:return new Date(janFourth.getFullYear(),0,3);case 3:return new Date(janFourth.getFullYear(),0,2);case 4:return new Date(janFourth.getFullYear(),0,1);case 5:return new Date(janFourth.getFullYear()-1,11,31);case 6: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){if(compareByDay(firstWeekStartNextYear,thisDate)<=0){return thisDate.getFullYear()+1}else{return thisDate.getFullYear()}}else{return thisDate.getFullYear()-1}}var EXPANSION_RULES_2={"%a":function(date){return WEEKDAYS[date.tm_wday].substring(0,3)},"%A":function(date){return WEEKDAYS[date.tm_wday]},"%b":function(date){return MONTHS[date.tm_mon].substring(0,3)},"%B":function(date){return MONTHS[date.tm_mon]},"%C":function(date){var year=date.tm_year+1900;return leadingNulls(year/100|0,2)},"%d":function(date){return leadingNulls(date.tm_mday,2)},"%e":function(date){return leadingSomething(date.tm_mday,2," ")},"%g":function(date){return getWeekBasedYear(date).toString().substring(2)},"%G":function(date){return getWeekBasedYear(date)},"%H":function(date){return leadingNulls(date.tm_hour,2)},"%I":function(date){var twelveHour=date.tm_hour;if(twelveHour==0)twelveHour=12;else if(twelveHour>12)twelveHour-=12;return leadingNulls(twelveHour,2)},"%j":function(date){return leadingNulls(date.tm_mday+__arraySum(__isLeapYear(date.tm_year+1900)?__MONTH_DAYS_LEAP:__MONTH_DAYS_REGULAR,date.tm_mon-1),3)},"%m":function(date){return leadingNulls(date.tm_mon+1,2)},"%M":function(date){return leadingNulls(date.tm_min,2)},"%n":function(){return"\n"},"%p":function(date){if(date.tm_hour>=0&&date.tm_hour<12){return"AM"}else{return"PM"}},"%S":function(date){return leadingNulls(date.tm_sec,2)},"%t":function(){return"\t"},"%u":function(date){return date.tm_wday||7},"%U":function(date){var janFirst=new Date(date.tm_year+1900,0,1);var firstSunday=janFirst.getDay()===0?janFirst:__addDays(janFirst,7-janFirst.getDay());var endDate=new Date(date.tm_year+1900,date.tm_mon,date.tm_mday);if(compareByDay(firstSunday,endDate)<0){var februaryFirstUntilEndMonth=__arraySum(__isLeapYear(endDate.getFullYear())?__MONTH_DAYS_LEAP:__MONTH_DAYS_REGULAR,endDate.getMonth()-1)-31;var firstSundayUntilEndJanuary=31-firstSunday.getDate();var days=firstSundayUntilEndJanuary+februaryFirstUntilEndMonth+endDate.getDate();return leadingNulls(Math.ceil(days/7),2)}return compareByDay(firstSunday,janFirst)===0?"01":"00"},"%V":function(date){var janFourthThisYear=new Date(date.tm_year+1900,0,4);var janFourthNextYear=new Date(date.tm_year+1901,0,4);var firstWeekStartThisYear=getFirstWeekStartDate(janFourthThisYear);var firstWeekStartNextYear=getFirstWeekStartDate(janFourthNextYear);var endDate=__addDays(new Date(date.tm_year+1900,0,1),date.tm_yday);if(compareByDay(endDate,firstWeekStartThisYear)<0){return"53"}if(compareByDay(firstWeekStartNextYear,endDate)<=0){return"01"}var daysDifference;if(firstWeekStartThisYear.getFullYear()<date.tm_year+1900){daysDifference=date.tm_yday+32-firstWeekStartThisYear.getDate()}else{daysDifference=date.tm_yday+1-firstWeekStartThisYear.getDate()}return leadingNulls(Math.ceil(daysDifference/7),2)},"%w":function(date){return date.tm_wday},"%W":function(date){var janFirst=new Date(date.tm_year,0,1);var firstMonday=janFirst.getDay()===1?janFirst:__addDays(janFirst,janFirst.getDay()===0?1:7-janFirst.getDay()+1);var endDate=new Date(date.tm_year+1900,date.tm_mon,date.tm_mday);if(compareByDay(firstMonday,endDate)<0){var februaryFirstUntilEndMonth=__arraySum(__isLeapYear(endDate.getFullYear())?__MONTH_DAYS_LEAP:__MONTH_DAYS_REGULAR,endDate.getMonth()-1)-31;var firstMondayUntilEndJanuary=31-firstMonday.getDate();var days=firstMondayUntilEndJanuary+februaryFirstUntilEndMonth+endDate.getDate();return leadingNulls(Math.ceil(days/7),2)}return compareByDay(firstMonday,janFirst)===0?"01":"00"},"%y":function(date){return(date.tm_year+1900).toString().substring(2)},"%Y":function(date){return date.tm_year+1900},"%z":function(date){var off=date.tm_gmtoff;var ahead=off>=0;off=Math.abs(off)/60;off=off/60*100+off%60;return(ahead?"+":"-")+String("0000"+off).slice(-4)},"%Z":function(date){return date.tm_zone},"%%":function(){return"%"}};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}function _time(ptr){var ret=Date.now()/1e3|0;if(ptr){HEAP32[ptr>>2]=ret}return ret}var FSNode=function(parent,name,mode,rdev){if(!parent){parent=this}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|73;var writeMode=146;Object.defineProperties(FSNode.prototype,{read:{get:function(){return(this.mode&readMode)===readMode},set:function(val){val?this.mode|=readMode:this.mode&=~readMode}},write:{get:function(){return(this.mode&writeMode)===writeMode},set:function(val){val?this.mode|=writeMode:this.mode&=~writeMode}},isFolder:{get:function(){return FS.isDir(this.mode)}},isDevice:{get:function(){return FS.isChrdev(this.mode)}}});FS.FSNode=FSNode;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};var ASSERTIONS=true;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}function intArrayToString(array){var ret=[];for(var i=0;i<array.length;i++){var chr=array[i];if(chr>255){if(ASSERTIONS){assert(false,"Character code "+chr+" ("+String.fromCharCode(chr)+")  at offset "+i+" not in 0x00-0xFF.")}chr&=255}ret.push(String.fromCharCode(chr))}return ret.join("")}var decodeBase64=typeof atob=="function"?atob:function(input){var keyStr="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";var output="";var chr1,chr2,chr3;var enc1,enc2,enc3,enc4;var i=0;input=input.replace(/[^A-Za-z0-9\+\/\=]/g,"");do{enc1=keyStr.indexOf(input.charAt(i++));enc2=keyStr.indexOf(input.charAt(i++));enc3=keyStr.indexOf(input.charAt(i++));enc4=keyStr.indexOf(input.charAt(i++));chr1=enc1<<2|enc2>>4;chr2=(enc2&15)<<4|enc3>>2;chr3=(enc3&3)<<6|enc4;output=output+String.fromCharCode(chr1);if(enc3!==64){output=output+String.fromCharCode(chr2)}if(enc4!==64){output=output+String.fromCharCode(chr3)}}while(i<input.length);return output};function intArrayFromBase64(s){try{var decoded=decodeBase64(s);var bytes=new Uint8Array(decoded.length);for(var i=0;i<decoded.length;++i){bytes[i]=decoded.charCodeAt(i)}return bytes}catch(_){throw new Error("Converting base64 string to bytes failed.")}}function tryParseAsDataURI(filename){if(!isDataURI(filename)){return}return intArrayFromBase64(filename.slice(dataURIPrefix.length))}function checkIncomingModuleAPI(){ignoredModuleProp("fetchSettings")}var asmLibraryArg={"__assert_fail":___assert_fail,"__call_sighandler":___call_sighandler,"__syscall__newselect":___syscall__newselect,"__syscall_bind":___syscall_bind,"__syscall_connect":___syscall_connect,"__syscall_fcntl64":___syscall_fcntl64,"__syscall_fstat64":___syscall_fstat64,"__syscall_fstatat64":___syscall_fstatat64,"__syscall_getcwd":___syscall_getcwd,"__syscall_getdents64":___syscall_getdents64,"__syscall_getsockname":___syscall_getsockname,"__syscall_getsockopt":___syscall_getsockopt,"__syscall_ioctl":___syscall_ioctl,"__syscall_lstat64":___syscall_lstat64,"__syscall_open":___syscall_open,"__syscall_pipe":___syscall_pipe,"__syscall_poll":___syscall_poll,"__syscall_readlink":___syscall_readlink,"__syscall_recvfrom":___syscall_recvfrom,"__syscall_rename":___syscall_rename,"__syscall_rmdir":___syscall_rmdir,"__syscall_sendto":___syscall_sendto,"__syscall_socket":___syscall_socket,"__syscall_stat64":___syscall_stat64,"__syscall_unlink":___syscall_unlink,"_emscripten_throw_longjmp":__emscripten_throw_longjmp,"_gmtime_js":__gmtime_js,"_tzset_js":__tzset_js,"alarm":_alarm,"clock_gettime":_clock_gettime,"emscripten_console_error":_emscripten_console_error,"emscripten_resize_heap":_emscripten_resize_heap,"environ_get":_environ_get,"environ_sizes_get":_environ_sizes_get,"fd_close":_fd_close,"fd_read":_fd_read,"fd_seek":_fd_seek,"fd_write":_fd_write,"getTempRet0":_getTempRet0,"getaddrinfo":_getaddrinfo,"gettimeofday":_gettimeofday,"invoke_i":invoke_i,"invoke_ii":invoke_ii,"invoke_iiii":invoke_iiii,"invoke_iiiiiii":invoke_iiiiiii,"invoke_jii":invoke_jii,"invoke_vi":invoke_vi,"invoke_viii":invoke_viii,"setTempRet0":_setTempRet0,"strftime":_strftime,"time":_time};if (wasmBinaryFile && isDataURI(wasmBinaryFile)) var asm = createWasm();
else var asm = null;var ___wasm_call_ctors=Module["___wasm_call_ctors"]=createExportWrapper("__wasm_call_ctors");var _get_cacert=Module["_get_cacert"]=createExportWrapper("get_cacert");var _malloc=Module["_malloc"]=createExportWrapper("malloc");var _init_curl=Module["_init_curl"]=createExportWrapper("init_curl");var _http_set_options=Module["_http_set_options"]=createExportWrapper("http_set_options");var _free=Module["_free"]=createExportWrapper("free");var _http_set_cookie_jar=Module["_http_set_cookie_jar"]=createExportWrapper("http_set_cookie_jar");var _http_get_info=Module["_http_get_info"]=createExportWrapper("http_get_info");var _create_request=Module["_create_request"]=createExportWrapper("create_request");var _request_cleanup=Module["_request_cleanup"]=createExportWrapper("request_cleanup");var _request_set_proxy=Module["_request_set_proxy"]=createExportWrapper("request_set_proxy");var _request_set_insecure=Module["_request_set_insecure"]=createExportWrapper("request_set_insecure");var _session_create=Module["_session_create"]=createExportWrapper("session_create");var _session_perform=Module["_session_perform"]=createExportWrapper("session_perform");var _session_set_options=Module["_session_set_options"]=createExportWrapper("session_set_options");var _session_add_request=Module["_session_add_request"]=createExportWrapper("session_add_request");var _session_get_active=Module["_session_get_active"]=createExportWrapper("session_get_active");var _session_remove_request=Module["_session_remove_request"]=createExportWrapper("session_remove_request");var _session_cleanup=Module["_session_cleanup"]=createExportWrapper("session_cleanup");var _recv_from_socket=Module["_recv_from_socket"]=createExportWrapper("recv_from_socket");var _send_to_socket=Module["_send_to_socket"]=createExportWrapper("send_to_socket");var _tls_socket_set_options=Module["_tls_socket_set_options"]=createExportWrapper("tls_socket_set_options");var _tls_socket_set_options_insecure=Module["_tls_socket_set_options_insecure"]=createExportWrapper("tls_socket_set_options_insecure");var _get_version=Module["_get_version"]=createExportWrapper("get_version");var _get_error_str=Module["_get_error_str"]=createExportWrapper("get_error_str");var _recv_from_websocket=Module["_recv_from_websocket"]=createExportWrapper("recv_from_websocket");var _send_to_websocket=Module["_send_to_websocket"]=createExportWrapper("send_to_websocket");var _close_websocket=Module["_close_websocket"]=createExportWrapper("close_websocket");var _websocket_set_options=Module["_websocket_set_options"]=createExportWrapper("websocket_set_options");var _get_result_size=Module["_get_result_size"]=createExportWrapper("get_result_size");var _get_result_buffer=Module["_get_result_buffer"]=createExportWrapper("get_result_buffer");var _get_result_code=Module["_get_result_code"]=createExportWrapper("get_result_code");var _get_result_closed=Module["_get_result_closed"]=createExportWrapper("get_result_closed");var _get_result_bytes_left=Module["_get_result_bytes_left"]=createExportWrapper("get_result_bytes_left");var _get_result_is_text=Module["_get_result_is_text"]=createExportWrapper("get_result_is_text");var ___errno_location=Module["___errno_location"]=createExportWrapper("__errno_location");var _ntohs=Module["_ntohs"]=createExportWrapper("ntohs");var _htons=Module["_htons"]=createExportWrapper("htons");var _saveSetjmp=Module["_saveSetjmp"]=createExportWrapper("saveSetjmp");var _htonl=Module["_htonl"]=createExportWrapper("htonl");var ___stdio_exit=Module["___stdio_exit"]=createExportWrapper("__stdio_exit");var _raise=Module["_raise"]=createExportWrapper("raise");var _setThrew=Module["_setThrew"]=createExportWrapper("setThrew");var _emscripten_stack_init=Module["_emscripten_stack_init"]=function(){return(_emscripten_stack_init=Module["_emscripten_stack_init"]=Module["asm"]["emscripten_stack_init"]).apply(null,arguments)};var _emscripten_stack_get_free=Module["_emscripten_stack_get_free"]=function(){return(_emscripten_stack_get_free=Module["_emscripten_stack_get_free"]=Module["asm"]["emscripten_stack_get_free"]).apply(null,arguments)};var _emscripten_stack_get_base=Module["_emscripten_stack_get_base"]=function(){return(_emscripten_stack_get_base=Module["_emscripten_stack_get_base"]=Module["asm"]["emscripten_stack_get_base"]).apply(null,arguments)};var _emscripten_stack_get_end=Module["_emscripten_stack_get_end"]=function(){return(_emscripten_stack_get_end=Module["_emscripten_stack_get_end"]=Module["asm"]["emscripten_stack_get_end"]).apply(null,arguments)};var stackSave=Module["stackSave"]=createExportWrapper("stackSave");var stackRestore=Module["stackRestore"]=createExportWrapper("stackRestore");var stackAlloc=Module["stackAlloc"]=createExportWrapper("stackAlloc");var dynCall_jii=Module["dynCall_jii"]=createExportWrapper("dynCall_jii");var dynCall_iiji=Module["dynCall_iiji"]=createExportWrapper("dynCall_iiji");var dynCall_iiij=Module["dynCall_iiij"]=createExportWrapper("dynCall_iiij");var dynCall_iiiiijjii=Module["dynCall_iiiiijjii"]=createExportWrapper("dynCall_iiiiijjii");var dynCall_jiji=Module["dynCall_jiji"]=createExportWrapper("dynCall_jiji");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_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_i(index){var sp=stackSave();try{return getWasmTableEntry(index)()}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_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_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_jii(index,a1,a2){var sp=stackSave();try{return dynCall_jii(index,a1,a2)}catch(e){stackRestore(sp);if(e!==e+0)throw e;_setThrew(1,0)}}unexportedRuntimeFunction("intArrayFromString",false);unexportedRuntimeFunction("intArrayToString",false);unexportedRuntimeFunction("ccall",false);unexportedRuntimeFunction("cwrap",false);unexportedRuntimeFunction("setValue",false);unexportedRuntimeFunction("getValue",false);Module["allocate"]=allocate;unexportedRuntimeFunction("UTF8ArrayToString",false);unexportedRuntimeFunction("UTF8ToString",false);unexportedRuntimeFunction("stringToUTF8Array",false);unexportedRuntimeFunction("stringToUTF8",false);unexportedRuntimeFunction("lengthBytesUTF8",false);unexportedRuntimeFunction("stackTrace",false);unexportedRuntimeFunction("addOnPreRun",false);unexportedRuntimeFunction("addOnInit",false);unexportedRuntimeFunction("addOnPreMain",false);unexportedRuntimeFunction("addOnExit",false);unexportedRuntimeFunction("addOnPostRun",false);unexportedRuntimeFunction("writeStringToMemory",false);unexportedRuntimeFunction("writeArrayToMemory",false);unexportedRuntimeFunction("writeAsciiToMemory",false);unexportedRuntimeFunction("addRunDependency",true);unexportedRuntimeFunction("removeRunDependency",true);unexportedRuntimeFunction("FS_createFolder",false);unexportedRuntimeFunction("FS_createPath",true);unexportedRuntimeFunction("FS_createDataFile",true);unexportedRuntimeFunction("FS_createPreloadedFile",true);unexportedRuntimeFunction("FS_createLazyFile",true);unexportedRuntimeFunction("FS_createLink",false);unexportedRuntimeFunction("FS_createDevice",true);unexportedRuntimeFunction("FS_unlink",true);unexportedRuntimeFunction("getLEB",false);unexportedRuntimeFunction("getFunctionTables",false);unexportedRuntimeFunction("alignFunctionTables",false);unexportedRuntimeFunction("registerFunctions",false);Module["addFunction"]=addFunction;Module["removeFunction"]=removeFunction;unexportedRuntimeFunction("getFuncWrapper",false);unexportedRuntimeFunction("prettyPrint",false);unexportedRuntimeFunction("dynCall",false);unexportedRuntimeFunction("getCompilerSetting",false);unexportedRuntimeFunction("print",false);unexportedRuntimeFunction("printErr",false);unexportedRuntimeFunction("getTempRet0",false);unexportedRuntimeFunction("setTempRet0",false);unexportedRuntimeFunction("callMain",false);unexportedRuntimeFunction("abort",false);unexportedRuntimeFunction("keepRuntimeAlive",false);unexportedRuntimeFunction("zeroMemory",false);unexportedRuntimeFunction("stringToNewUTF8",false);unexportedRuntimeFunction("emscripten_realloc_buffer",false);unexportedRuntimeFunction("ENV",false);unexportedRuntimeFunction("withStackSave",false);unexportedRuntimeFunction("ERRNO_CODES",false);unexportedRuntimeFunction("ERRNO_MESSAGES",false);unexportedRuntimeFunction("setErrNo",false);unexportedRuntimeFunction("inetPton4",false);unexportedRuntimeFunction("inetNtop4",false);unexportedRuntimeFunction("inetPton6",false);unexportedRuntimeFunction("inetNtop6",false);unexportedRuntimeFunction("readSockaddr",false);unexportedRuntimeFunction("writeSockaddr",false);unexportedRuntimeFunction("DNS",false);unexportedRuntimeFunction("getHostByName",false);unexportedRuntimeFunction("Protocols",false);unexportedRuntimeFunction("Sockets",false);unexportedRuntimeFunction("getRandomDevice",false);unexportedRuntimeFunction("traverseStack",false);unexportedRuntimeFunction("convertFrameToPC",false);unexportedRuntimeFunction("UNWIND_CACHE",false);unexportedRuntimeFunction("saveInUnwindCache",false);unexportedRuntimeFunction("convertPCtoSourceLocation",false);unexportedRuntimeFunction("readAsmConstArgsArray",false);unexportedRuntimeFunction("readAsmConstArgs",false);unexportedRuntimeFunction("mainThreadEM_ASM",false);unexportedRuntimeFunction("jstoi_q",false);unexportedRuntimeFunction("jstoi_s",false);unexportedRuntimeFunction("getExecutableName",false);unexportedRuntimeFunction("listenOnce",false);unexportedRuntimeFunction("autoResumeAudioContext",false);unexportedRuntimeFunction("dynCallLegacy",false);unexportedRuntimeFunction("getDynCaller",false);unexportedRuntimeFunction("dynCall",false);unexportedRuntimeFunction("callRuntimeCallbacks",false);unexportedRuntimeFunction("setWasmTableEntry",false);unexportedRuntimeFunction("getWasmTableEntry",false);unexportedRuntimeFunction("handleException",false);unexportedRuntimeFunction("runtimeKeepalivePush",false);unexportedRuntimeFunction("runtimeKeepalivePop",false);unexportedRuntimeFunction("callUserCallback",false);unexportedRuntimeFunction("maybeExit",false);unexportedRuntimeFunction("safeSetTimeout",false);unexportedRuntimeFunction("asmjsMangle",false);unexportedRuntimeFunction("asyncLoad",false);unexportedRuntimeFunction("alignMemory",false);unexportedRuntimeFunction("mmapAlloc",false);unexportedRuntimeFunction("reallyNegative",false);unexportedRuntimeFunction("unSign",false);unexportedRuntimeFunction("reSign",false);unexportedRuntimeFunction("formatString",false);unexportedRuntimeFunction("PATH",false);unexportedRuntimeFunction("PATH_FS",false);unexportedRuntimeFunction("SYSCALLS",false);unexportedRuntimeFunction("getSocketFromFD",false);unexportedRuntimeFunction("getSocketAddress",false);unexportedRuntimeFunction("JSEvents",false);unexportedRuntimeFunction("registerKeyEventCallback",false);unexportedRuntimeFunction("specialHTMLTargets",false);unexportedRuntimeFunction("maybeCStringToJsString",false);unexportedRuntimeFunction("findEventTarget",false);unexportedRuntimeFunction("findCanvasEventTarget",false);unexportedRuntimeFunction("getBoundingClientRect",false);unexportedRuntimeFunction("fillMouseEventData",false);unexportedRuntimeFunction("registerMouseEventCallback",false);unexportedRuntimeFunction("registerWheelEventCallback",false);unexportedRuntimeFunction("registerUiEventCallback",false);unexportedRuntimeFunction("registerFocusEventCallback",false);unexportedRuntimeFunction("fillDeviceOrientationEventData",false);unexportedRuntimeFunction("registerDeviceOrientationEventCallback",false);unexportedRuntimeFunction("fillDeviceMotionEventData",false);unexportedRuntimeFunction("registerDeviceMotionEventCallback",false);unexportedRuntimeFunction("screenOrientation",false);unexportedRuntimeFunction("fillOrientationChangeEventData",false);unexportedRuntimeFunction("registerOrientationChangeEventCallback",false);unexportedRuntimeFunction("fillFullscreenChangeEventData",false);unexportedRuntimeFunction("registerFullscreenChangeEventCallback",false);unexportedRuntimeFunction("registerRestoreOldStyle",false);unexportedRuntimeFunction("hideEverythingExceptGivenElement",false);unexportedRuntimeFunction("restoreHiddenElements",false);unexportedRuntimeFunction("setLetterbox",false);unexportedRuntimeFunction("currentFullscreenStrategy",false);unexportedRuntimeFunction("restoreOldWindowedStyle",false);unexportedRuntimeFunction("softFullscreenResizeWebGLRenderTarget",false);unexportedRuntimeFunction("doRequestFullscreen",false);unexportedRuntimeFunction("fillPointerlockChangeEventData",false);unexportedRuntimeFunction("registerPointerlockChangeEventCallback",false);unexportedRuntimeFunction("registerPointerlockErrorEventCallback",false);unexportedRuntimeFunction("requestPointerLock",false);unexportedRuntimeFunction("fillVisibilityChangeEventData",false);unexportedRuntimeFunction("registerVisibilityChangeEventCallback",false);unexportedRuntimeFunction("registerTouchEventCallback",false);unexportedRuntimeFunction("fillGamepadEventData",false);unexportedRuntimeFunction("registerGamepadEventCallback",false);unexportedRuntimeFunction("registerBeforeUnloadEventCallback",false);unexportedRuntimeFunction("fillBatteryEventData",false);unexportedRuntimeFunction("battery",false);unexportedRuntimeFunction("registerBatteryEventCallback",false);unexportedRuntimeFunction("setCanvasElementSize",false);unexportedRuntimeFunction("getCanvasElementSize",false);unexportedRuntimeFunction("demangle",false);unexportedRuntimeFunction("demangleAll",false);unexportedRuntimeFunction("jsStackTrace",false);unexportedRuntimeFunction("stackTrace",false);unexportedRuntimeFunction("getEnvStrings",false);unexportedRuntimeFunction("checkWasiClock",false);unexportedRuntimeFunction("writeI53ToI64",false);unexportedRuntimeFunction("writeI53ToI64Clamped",false);unexportedRuntimeFunction("writeI53ToI64Signaling",false);unexportedRuntimeFunction("writeI53ToU64Clamped",false);unexportedRuntimeFunction("writeI53ToU64Signaling",false);unexportedRuntimeFunction("readI53FromI64",false);unexportedRuntimeFunction("readI53FromU64",false);unexportedRuntimeFunction("convertI32PairToI53",false);unexportedRuntimeFunction("convertU32PairToI53",false);unexportedRuntimeFunction("setImmediateWrapped",false);unexportedRuntimeFunction("clearImmediateWrapped",false);unexportedRuntimeFunction("polyfillSetImmediate",false);unexportedRuntimeFunction("uncaughtExceptionCount",false);unexportedRuntimeFunction("exceptionLast",false);unexportedRuntimeFunction("exceptionCaught",false);unexportedRuntimeFunction("ExceptionInfo",false);unexportedRuntimeFunction("CatchInfo",false);unexportedRuntimeFunction("exception_addRef",false);unexportedRuntimeFunction("exception_decRef",false);unexportedRuntimeFunction("Browser",false);unexportedRuntimeFunction("funcWrappers",false);unexportedRuntimeFunction("getFuncWrapper",false);unexportedRuntimeFunction("setMainLoop",false);unexportedRuntimeFunction("wget",false);unexportedRuntimeFunction("FS",false);unexportedRuntimeFunction("MEMFS",false);unexportedRuntimeFunction("TTY",false);unexportedRuntimeFunction("PIPEFS",false);unexportedRuntimeFunction("SOCKFS",false);unexportedRuntimeFunction("_setNetworkCallback",false);unexportedRuntimeFunction("tempFixedLengthArray",false);unexportedRuntimeFunction("miniTempWebGLFloatBuffers",false);unexportedRuntimeFunction("heapObjectForWebGLType",false);unexportedRuntimeFunction("heapAccessShiftForWebGLHeap",false);unexportedRuntimeFunction("GL",false);unexportedRuntimeFunction("emscriptenWebGLGet",false);unexportedRuntimeFunction("computeUnpackAlignedImageSize",false);unexportedRuntimeFunction("emscriptenWebGLGetTexPixelDat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calledRun;function ExitStatus(status){this.name="ExitStatus";this.message="Program terminated with exit("+status+")";this.status=status}dependenciesFulfilled=function runCaller(){if(!calledRun)run();if(!calledRun)dependenciesFulfilled=runCaller};function stackCheckInit(){_emscripten_stack_init();writeStackCookie()}function run(args){args=args||arguments_;if(runDependencies>0){return}stackCheckInit();preRun();if(runDependencies>0){return}function doRun(){if(calledRun)return;calledRun=true;Module["calledRun"]=true;if(ABORT)return;initRuntime();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()}Module["run"]=run;function checkUnflushedContent(){var oldOut=out;var oldErr=err;var has=false;out=err=(x=>{has=true});try{___stdio_exit();["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 FAQ), or make sure to emit a newline when you printf etc.")}}function procExit(code){EXITSTATUS=code;if(!keepRuntimeAlive()){if(Module["onExit"])Module["onExit"](code);ABORT=true}quit_(code,new ExitStatus(code))}if(Module["preInit"]){if(typeof Module["preInit"]=="function")Module["preInit"]=[Module["preInit"]];while(Module["preInit"].length>0){Module["preInit"].pop()()}}if (wasmBinaryFile && isDataURI(wasmBinaryFile)) run();//extra client code goes here
/* __extra_libraries__ */
//mapping of packet names to packet types
const packet_types = {
  CONNECT: 0x01,
  DATA: 0x02,
  CONTINUE: 0x03,
  CLOSE: 0x04
}

//mapping of types to packet names
const packet_names = [undefined, "CONNECT", "DATA", "CONTINUE", "CLOSE"];

function uint_from_array(array) {
  if (array.length == 4) return new Uint32Array(array.buffer)[0];
  else if (array.length == 2) return new Uint16Array(array.buffer)[0];
  else if (array.length == 1) return array[0];
  else throw "invalid array length";
}

function array_from_uint(int, size) {
  let buffer = new ArrayBuffer(size);
  let view = new DataView(buffer);
  if (size == 1) view.setUint8(0, int, true);
  else if (size == 2) view.setUint16(0, int, true);
  else if (size == 4) view.setUint32(0, int, true);
  else throw "invalid array length";
  return new Uint8Array(buffer);
}

function concat_uint8array() {
  let total_length = 0;
  for (let array of arguments) {
    total_length += array.length;
  }
  let new_array = new Uint8Array(total_length);
  let index = 0;
  for (let array of arguments) {
    new_array.set(array, index);
    index += array.length;
  }
  return new_array;
}

function create_packet(packet_type, stream_id, payload) {
  let stream_id_array = array_from_uint(stream_id, 4);
  let packet_type_array = array_from_uint(packet_type, 1);
  let packet = concat_uint8array(packet_type_array, stream_id_array, payload);
  return packet;
}

class WispStream extends EventTarget {
  constructor(hostname, port, websocket, buffer_size, stream_id, connection, stream_type) {
    super();
    this.hostname = hostname;
    this.port = port;
    this.ws = websocket;
    this.buffer_size = buffer_size;
    this.stream_id = stream_id;
    this.connection = connection;
    this.stream_type = stream_type;
    this.send_buffer = [];
    this.open = true;
  }

  send(data) {
    //note: udp shouldn't buffer anything
    if (this.buffer_size > 0 || !this.open || this.stream_type === 0x02) {
      //construct and send a DATA packet
      let packet = create_packet(0x02, this.stream_id, data);
      this.ws.send(packet);
      this.buffer_size--;
    }
    else { //server is slow, don't send data yet
      this.send_buffer.push(data);
    }
  }

  //handle receiving a CONTINUE packet
  continue_received(buffer_size) {
    this.buffer_size = buffer_size;
    //send buffered data now
    while (this.buffer_size > 0 && this.send_buffer.length > 0) {
      this.send(this.send_buffer.shift());
    }
  }

  //construct and send a CLOSE packet
  close(reason = 0x01) {
    if (!this.open) return;
    let payload = array_from_uint(reason, 1)
    let packet = create_packet(0x04, this.stream_id, payload);
    this.ws.send(packet);
    this.open = false;
    delete this.connection.active_streams[this.stream_id];
  }
}

class WispConnection extends EventTarget {
  constructor(wisp_url) {
    super();
    this.wisp_url = wisp_url;
    this.max_buffer_size = null;
    this.active_streams = {};
    this.connected = false;
    this.connecting = false;
    this.next_stream_id = 1;

    if (!this.wisp_url.endsWith("/")) {
      throw "wisp endpoints must end with a trailing forward slash";
    }

    this.connect_ws();
  }

  connect_ws() {
    this.ws = new WebSocket(this.wisp_url);
    this.ws.binaryType = "arraybuffer";
    this.connecting = true;

    this.ws.addEventListener("error", (event) => {
      this.on_ws_close();
      let error_event = new Event("error");
      this.dispatchEvent(error_event);
    });
    this.ws.addEventListener("close", () => {
      this.on_ws_close();
      let close_event = new CloseEvent("close");
      this.dispatchEvent(close_event);
    });
    this.ws.addEventListener("message", (event) => {
      this.on_ws_msg(event);
      if (this.connecting) {
        this.connected = true;
        this.connecting = false;
        let open_event = new Event("open");
        this.dispatchEvent(open_event);
      }
    });
  }

  close_stream(stream, reason) {
    let close_event = new CloseEvent("close", { code: reason });
    stream.open = false;
    stream.dispatchEvent(close_event);
    delete this.active_streams[stream.stream_id];
  }

  on_ws_close() {
    this.connected = false;
    this.connecting = false;
    for (let stream_id of Object.keys(this.active_streams)) {
      this.close_stream(this.active_streams[stream_id], 0x03);
    }
  }

  create_stream(hostname, port, type="tcp") {
    let stream_type = type === "udp" ? 0x02 : 0x01;
    let stream_id = this.next_stream_id
    this.next_stream_id++;
    let stream = new WispStream(hostname, port, this.ws, this.max_buffer_size, stream_id, this, stream_type);
    stream.open = this.connected;

    //construct CONNECT packet
    let type_array = array_from_uint(stream_type, 1);
    let port_array = array_from_uint(port, 2);
    let host_array = new TextEncoder().encode(hostname);
    let payload = concat_uint8array(type_array, port_array, host_array);
    let packet = create_packet(0x01, stream_id, payload);

    this.active_streams[stream_id] = stream;
    this.ws.send(packet);
    return stream;
  }

  on_ws_msg(event) {
    let packet = new Uint8Array(event.data);

    if (packet.length < 5) {
      warn_msg(`wisp client warning: received a packet which is too short`);
      return;
    }

    let packet_type = packet[0];
    let stream_id = uint_from_array(packet.slice(1, 5));
    let payload = packet.slice(5);
    let stream = this.active_streams[stream_id];

    if (typeof stream === "undefined" && stream_id !== 0) {
      warn_msg(`wisp client warning: received a ${packet_names[packet_type]} packet for a stream which doesn't exist`);
      return;
    }

    if (packet_type === packet_types.DATA) { //DATA packets
      let msg_event = new MessageEvent("message", { data: payload });
      stream.dispatchEvent(msg_event);
    }

    else if (packet_type === packet_types.CONTINUE && stream_id == 0) { //initial CONTINUE packet
      this.max_buffer_size = uint_from_array(payload);
    }

    else if (packet_type === packet_types.CONTINUE) { //other CONTINUE packets
      stream.continue_received(uint_from_array(payload));
    }

    else if (packet_type === packet_types.CLOSE) { //CLOSE packets
      this.close_stream(stream, payload[0]);
    }

    else {
      warn_msg(`wisp client warning: receive an invalid packet of type ${packet_type}`);
    }
  }
}

//polyfill the DOM Websocket API so that applications using wsproxy can easily use wisp with minimal changes

const _wisp_connections = {};

class WispWebSocket extends EventTarget {
  constructor(url, protocols) {
    super();
    this.url = url;
    this.protocols = protocols
    this.binaryType = "blob";
    this.stream = null;
    this.event_listeners = {};
    this.connection = null;

    //legacy event handlers
    this.onopen = () => {};
    this.onerror = () => {};
    this.onmessage = () => {};
    this.onclose = () => {};

    this.CONNECTING = 0;
    this.OPEN = 1;
    this.CLOSING = 2;
    this.CLOSED = 3;
    
    //parse the wsproxy url
    let url_split = this.url.split("/");
    let wsproxy_path = url_split.pop().split(":");
    this.host = wsproxy_path[0];
    this.port = parseInt(wsproxy_path[1]);
    this.real_url = url_split.join("/") + "/";

    this.init_connection();
  }

  on_conn_close() {
    delete _wisp_connections[this.real_url];
  }

  init_connection() {
    //create the stream
    this.connection = _wisp_connections[this.real_url];

    if (!this.connection) {
      this.connection = new WispConnection(this.real_url);
      this.connection.addEventListener("open", () => {
        this.init_stream();
      })
      this.connection.addEventListener("close", () => {this.on_conn_close()});
      this.connection.addEventListener("error", () => {this.on_conn_close()});
      _wisp_connections[this.real_url] = this.connection;
    }
    else if (!this.connection.connected) {
      this.connection.addEventListener("open", () => {
        this.init_stream();
      });
    }
    else {
      this.connection = _wisp_connections[this.real_url];
      this.init_stream();
    }
  }

  init_stream() {
    this.stream = this.connection.create_stream(this.host, this.port);
    this.stream.addEventListener("message", (event) => {
      let data;
      if (this.binaryType == "blob") {
        data = new Blob(event.data);
      }
      else if (this.binaryType == "arraybuffer") {
        data = event.data.buffer;
      }
      else {
        throw "invalid binaryType string";
      }
      let msg_event = new MessageEvent("message", {data: data});
      this.onmessage(msg_event);
      this.dispatchEvent(msg_event);
    });
    this.stream.addEventListener("close", (event) => {
      let close_event = new CloseEvent("close", {code: event.code});
      this.onclose(close_event);
      this.dispatchEvent(close_event);
    })
    let open_event = new Event("open");
    this.onopen(open_event);
    this.dispatchEvent(open_event);
  }

  send(data) {
    let data_array;
    if (typeof data === "string") {
      data_array = new TextEncoder().encode(data);
    }
    else if (data instanceof Blob) {
      data.arrayBuffer().then(array_buffer => {
        data_array = new Uint8Array(array_buffer);
        this.send(data_array);
      });
      return;
    }
    //any typedarray
    else if (data instanceof ArrayBuffer) {
      //dataview objects
      if (ArrayBuffer.isView(data) && data instanceof DataView) {
        data_array = new Uint8Array(data.buffer);
      }
      //regular arraybuffers
      else {
        data_array = new Uint8Array(data);
      }
    }
    //regular typed arrays
    else if (ArrayBuffer.isView(data)) {
      data_array = Uint8Array.from(data);
    }
    else {
      throw "invalid data type";
    }
    
    if (!this.stream) {
      throw "websocket is not ready";
    }
    this.stream.send(data_array);
  }

  close() {
    this.stream.close(0x02);
  }

  get bufferedAmount() {
    let total = 0;
    for (let msg of this.stream.send_buffer) {
      total += msg.length;
    }
    return total;
  }

  get extensions() {
    return "";
  }

  get protocol() {
    return "binary";
  }

  get readyState() {
    if (this.connection && !this.connection.connected && !this.connection.connecting) {
      return this.CLOSED;
    }
    if (!this.connection || !this.connection.connected) {
      return this.CONNECTING;
    }
    if (this.stream.open) {
      return this.OPEN;
    }
    return this.CLOSED;
  }
}function logger(type, text) {
  if (type === "log")
    console.log(text);
  else if (type === "warn") 
    console.warn(text);
  else if (type === "error")
    console.error(text);
}

function log_msg(text) {
  logger("log", text);
}
function warn_msg(text) {
  logger("warn", text);
}
function error_msg(text) {
  logger("error", text);
}
//a case insensitive dictionary for request headers
class HeadersDict {
  constructor(obj) {
    for (let key in obj) {
      this[key] = obj[key];
    }
    return new Proxy(this, this);
  }
  get(target, prop) {
    let keys = Object.keys(this);
    for (let key of keys) {
      if (key.toLowerCase() === prop.toLowerCase()) {
        return this[key];
      }
    }
  }
  set(target, prop, value) {
    let keys = Object.keys(this);
    for (let key of keys) {
      if (key.toLowerCase() === prop.toLowerCase()) {
        this[key] = value;
      }
    }
    this[prop] = value;
    return true;
  }
}

function allocate_str(str) {
  return allocate(intArrayFromString(str), ALLOC_NORMAL);
}

function allocate_array(array) {
  return allocate(array, ALLOC_NORMAL);
}

function get_error_str(error_code) {
  let error_ptr = _get_error_str(error_code);
  return UTF8ToString(error_ptr);
}

function merge_arrays(arrays) {
  let total_len = arrays.reduce((acc, val) => acc + val.length, 0);
  let new_array = new Uint8Array(total_len);
  let offset = 0;
  for (let array of arrays) {
    new_array.set(array, offset);
    offset += array.length;
  }
  return new_array;
}

//convert various data types to a uint8array (blobs excluded)
function data_to_array(data) {
  //data already in correct type
  if (data instanceof Uint8Array) {
    return data;  
  }

  else if (typeof data === "string") {
    return new TextEncoder().encode(data);
  }

  else if (data instanceof ArrayBuffer) {
    return new Uint8Array(data);
  }

  //dataview objects or any other typedarray
  else if (ArrayBuffer.isView(data)) {
    return new Uint8Array(data.buffer);
  }

  throw new TypeError("invalid data type to be sent");
}

//c function wrapper
function c_func(target, args=[]) {
  let str_pointers = [];
  for (let i = 0; i < args.length; i++) {
    let ptr = null;
    if (typeof args[i] === "string") {
      ptr = allocate_str(args[i]);
    }
    if (args[i] instanceof Uint8Array) {
      ptr = allocate_array(args[i]);
    }

    if (!ptr) continue;
    args[i] = ptr;
    str_pointers.push(ptr);
  }

  let ret = target(...args);
  for (let ptr of str_pointers) {
    _free(ptr);
  }

  return ret;
}

//additional wrapper to free any returned strings
function c_func_str(target, args=[]) {
  let ptr = c_func(target, args);
  let str = UTF8ToString(ptr);
  _free(ptr);
  return str;
}

//ensure that the proxy url has a valid protocol
function check_proxy(proxy) {
  if (typeof proxy === "string" || proxy instanceof String) {
    let protocol = new URL(proxy).protocol;
    if (!["socks5h:", "socks4a:", "http:"].includes(protocol)) {
      throw new TypeError("Only socks5h, socks4a, and http proxies are supported.");
    }
  }
}const status_messages = {
  100: "Continue",
  101: "Switching Protocols",
  102: "Processing",
  103: "Early Hints",
  200: "OK",
  201: "Created",
  202: "Accepted",
  203: "Non-Authoritative Information",
  204: "No Content",
  205: "Reset Content",
  206: "Partial Content",
  207: "Multi-Status",
  208: "Already Reported",
  226: "IM Used",
  300: "Multiple Choices",
  301: "Moved Permanently",
  302: "Found",
  303: "See Other",
  304: "Not Modified",
  305: "Use Proxy",
  306: "Switch Proxy",
  307: "Temporary Redirect",
  308: "Permanent Redirect",
  400: "Bad Request",
  401: "Unauthorized",
  402: "Payment Required",
  403: "Forbidden",
  404: "Not Found",
  405: "Method Not Allowed",
  406: "Not Acceptable",
  407: "Proxy Authentication Required",
  408: "Request Timeout",
  409: "Conflict",
  410: "Gone",
  411: "Length Required",
  412: "Precondition Failed",
  413: "Payload Too Large",
  414: "URI Too Long",
  415: "Unsupported Media Type",
  416: "Range Not Satisfiable",
  417: "Expectation Failed",
  418: "I'm a teapot",
  421: "Misdirected Request",
  422: "Unprocessable Content",
  423: "Locked",
  424: "Failed Dependency",
  425: "Too Early",
  426: "Upgrade Required",
  428: "Precondition Required",
  429: "Too Many Requests",
  431: "Request Header Fields Too Large",
  451: "Unavailable For Legal Reasons",
  500: "Internal Server Error",
  501: "Not Implemented",
  502: "Bad Gateway",
  503: "Service Unavailable",
  504: "Gateway Timeout",
  505: "HTTP Version Not Supported",
  506: "Variant Also Negotiates",
  507: "Insufficient Storage",
  508: "Loop Detected",
  510: "Not Extended",
  511: "Network Authentication Required"
}
const copyright_notice = `libcurl.js is licensed under the GNU LGPL v3. You can find the license text and source code at the project's git repository: https://github.com/ading2210/libcurl.js

Several C libraries are used, and their licenses are listed below:
- libcurl: curl License (https://curl.se/docs/copyright.html)
- mbedtls: Apache License 2.0 (https://github.com/Mbed-TLS/mbedtls/blob/development/LICENSE)
- cjson: MIT License (https://github.com/DaveGamble/cJSON/blob/master/LICENSE)
- zlib: zlib License (https://www.zlib.net/zlib_license.html)
- brotli: MIT License (https://github.com/google/brotli/blob/master/LICENSE)
- nghttp2: MIT License (https://github.com/nghttp2/nghttp2/blob/master/COPYING)
`;class CurlSession {
  constructor(options={}) {
    check_loaded(true);

    this.options = options;
    this.session_ptr = _session_create();
    this.active_requests = 0;
    this.event_loop = null;
    this.requests_list = [];
    this.to_remove = [];
  
    this.end_callback_ptr = Module.addFunction((request_id, error) => {
      this.end_callback(request_id, error);
    }, "vii");
    this.headers_callback_ptr = Module.addFunction((request_id, chunk_ptr, chunk_size) => {
      this.headers_callback(request_id, chunk_ptr, chunk_size)
    }, "viii");
    this.data_callback_ptr = Module.addFunction((request_id, chunk_ptr, chunk_size) => {
      this.data_callback(request_id, chunk_ptr, chunk_size)
    }, "viii");
    this.request_callbacks = {};
    this.last_request_id = 0;
  }

  assert_ready() {
    if (!this.session_ptr) {
      throw new Error("session has been removed");
    }
  }

  set_connections(connections_limit, cache_limit, host_conn_limit=0) {
    this.assert_ready();
    _session_set_options(this.session_ptr, connections_limit, cache_limit, host_conn_limit);
  }

  end_callback(request_id, error) {
    this.active_requests--;
    this.request_callbacks[request_id].end(error);
    delete this.request_callbacks[request_id];
  }

  data_callback(request_id, chunk_ptr, chunk_size) {
    let data = Module.HEAPU8.subarray(chunk_ptr, chunk_ptr + chunk_size);
    let chunk = new Uint8Array(data);
    this.request_callbacks[request_id].data(chunk);
  }

  headers_callback(request_id, chunk_ptr, chunk_size) {
    let data = Module.HEAPU8.subarray(chunk_ptr, chunk_ptr + chunk_size);
    let chunk = new Uint8Array(data);
    this.request_callbacks[request_id].headers(chunk);
  }

  create_request(url, js_data_callback, js_end_callback, js_headers_callback) {
    this.assert_ready();
    let request_id = this.last_request_id++;
    this.request_callbacks[request_id] = {
      end: js_end_callback,
      data: js_data_callback,
      headers: js_headers_callback
    }
  
    let request_ptr = c_func(_create_request, [
      url, request_id, this.data_callback_ptr, this.end_callback_ptr, this.headers_callback_ptr
    ]);
    return request_ptr;
  }

  remove_request_now(request_ptr) {
    if (this.session_ptr) {
      _session_remove_request(this.session_ptr, request_ptr);
    }
    _request_cleanup(request_ptr);
    
    let request_index = this.requests_list.indexOf(request_ptr);
    if (request_index !== -1) {
      this.requests_list.splice(request_index, 1);
    }
  }

  //remove the request on the next iteration of the loop
  remove_request(request_ptr) {
    this.assert_ready();
    setTimeout(() => {
      this.remove_request_now(request_ptr);
    }, 1)
  }

  start_request(request_ptr) {
    this.assert_ready();
    _session_add_request(this.session_ptr, request_ptr);
    _session_perform(this.session_ptr);

    this.active_requests++;
    this.requests_list.push(request_ptr);
  
    if (this.event_loop) {
      return;
    }
    
    this.event_loop = setInterval(() => {
      this.event_loop_func();
    }, 0);
  }

  event_loop_func() {
    let libcurl_active = _session_get_active(this.session_ptr);
    if (libcurl_active || this.active_requests) {
      _session_perform(this.session_ptr);
    }
    else {
      clearInterval(this.event_loop);
      this.event_loop = null;
    }
  }

  close_now() {
    for (let request_ptr of this.requests_list) {
      this.remove_request_now(request_ptr);
    }
    _session_cleanup(this.session_ptr);
    this.session_ptr = null;
    Module.removeFunction(this.end_callback_ptr);
    Module.removeFunction(this.headers_callback_ptr);
    Module.removeFunction(this.data_callback_ptr);
  }

  close() {
    this.assert_ready();
    setTimeout(() => {
      this.close_now();
    }, 1);
  }

  //wrap request callbacks using a readable stream and return the new callbacks
  stream_response(url, headers_callback, end_callback, abort_signal) {
    let stream_controller;
    let aborted = false;
    let headers_received = false;

    let stream = new ReadableStream({
      start(controller) {
        stream_controller = controller;
      }
    });

    if (abort_signal instanceof AbortSignal) {
      abort_signal.addEventListener("abort", () => {
        if (aborted) return;
        aborted = true;
        if (headers_received) {
          stream_controller.error("The operation was aborted.");
        }
        real_end_callback(-1);
      });
    }

    let real_data_callback = (new_data) => {
      if (!headers_received) {
        headers_received = true;
        headers_callback(stream);
      }

      try {
        stream_controller.enqueue(new_data);
      }
      catch (e) {
        //the readable stream has been closed elsewhere, so cancel the request
        if (aborted) return;
        aborted = true;
        if (e instanceof TypeError) {
          end_callback(-1);
        }
        else {
          throw e;
        }
      }
    }

    let real_end_callback = (error) => {
      if (!headers_received && error === 0) {
        headers_received = true;
        headers_callback(stream);
      }

      try {
        stream_controller.close();
      }
      catch {}
      end_callback(error);
    }

    return this.create_request(url, real_data_callback, real_end_callback, () => {});
  }
}class HTTPSession extends CurlSession {
  constructor(options={}) {
    super();
    this.options = options;
    this.base_url = undefined;

    this.set_connections(50, 40, 6);
    this.import_cookies();
  }

  import_cookies() {
    if (this.options.enable_cookies) {
      this.cookie_filename = `/cookies_${Math.random()}.txt`;
      if (this.options.cookie_jar) {
        FS.writeFile(this.cookie_filename, this.options.cookie_jar);
      }
    }
  }

  export_cookies() {
    if (!this.cookie_filename) return "";

    try {
      return FS.readFile(this.cookie_filename, {encoding: "utf8"});
    }
    catch (e) {
      if (e.errno === 44) return "";
      throw e;
    }
  }

  close() {
    if (this.cookie_filename) {
      try {
        FS.unlink(this.cookie_filename);
      }
      catch (e) {}
    }
    super.close();
  }

  request_async(url, params, body) {
    return new Promise((resolve, reject) => {
      let http_handle = null;
      let body_ptr = null; 

      let headers_callback = (stream) => {
        let response_json = c_func_str(_http_get_info, [http_handle]);
        let response = this.constructor.create_response(stream, JSON.parse(response_json));
        
        if (params.redirect === "error" && response.status >= 300 && response.status < 400) {
          finish_callback(-2);
          return;
        }
        resolve(response);
      }
      let finish_callback = (error) => {
        if (body_ptr != null) {
          _free(body_ptr);
          body_ptr = null;
        }
        if (http_handle == null) {
          //a race condition with aborting requests may lead to this state
          //if the request gets cancelled right before it finishes normally, this function gets called twice
          //fortunately, we can just return here to prevent anything bad from happening
          return;
        }
        if (error > 0) {
          error_msg(`Request "${url}" failed with error code ${error}: ${get_error_str(error)}`);
          reject(new TypeError(`Request failed with error code ${error}: ${get_error_str(error)}`));
        }
        else if (error === -1) {
          reject(new DOMException("The operation was aborted."));
        }
        else if (error === -2) {
          reject(new TypeError("Request failed because redirects were disallowed."));
        }
        this.remove_request(http_handle);
        http_handle = null;
      }
      
      body_ptr = body ? allocate_array(body) : null;
      let body_length = body ? body.length : 0;
      let params_json = JSON.stringify(params);
      
      http_handle = this.stream_response(url, headers_callback, finish_callback, params.signal);
      c_func(_http_set_options, [http_handle, params_json, body_ptr, body_length]);
      if (this.cookie_filename && params.credentials !== "omit") {
        c_func(_http_set_cookie_jar, [http_handle, this.cookie_filename]);
      }
      if (params.proxy) {
        c_func_str(_request_set_proxy, [http_handle, params.proxy]);
      }
      if (params.insecure) {
        c_func(_request_set_insecure, [http_handle, 1]);
      }

      this.start_request(http_handle);
    });
  }

  async fetch(resource, params_old={}) {
    let url = resource;
    //shallow copy the original params object
    let params = Object.fromEntries(Object.entries(params_old));

    if (resource instanceof Request) {
      url = resource.url;
      params.headers = params.headers || Object.fromEntries(resource.headers);
      params.method = params.method || resource.method;
      let resource_body = await resource.arrayBuffer();
      if (resource_body.byteLength !== 0) 
        params.body = resource_body;
    }
    else if (typeof url === "string" || url instanceof String) {
      url = (new URL(url, this.base_url)).href;
    }
    else if (url instanceof URL) {
      url = url.href;
    }
    else {
      url = "" + url;
    }

    if (this.options && this.options.proxy) {
      params.proxy = this.options.proxy;
    }
    check_proxy(params.proxy);

    let body = await this.constructor.create_options(params);
    return await this.request_async(url, params, body);
  }

  static create_response(response_data, response_info) {
    response_info.ok = response_info.status >= 200 && response_info.status < 300;
    response_info.statusText = status_messages[response_info.status] || "";
    if (response_info.status === 204 || response_info.status === 205) {
      response_data = null;
    }

    //construct base response object
    let response_obj = new Response(response_data, response_info);
    for (let key in response_info) {
      if (key == "headers") continue;
      Object.defineProperty(response_obj, key, {
        writable: false,
        value: response_info[key]
      });
    }

    //create headers object
    Object.defineProperty(response_obj, "headers", {
      writable: false,
      value: new Headers()
    });
    Object.defineProperty(response_obj, "raw_headers", {
      writable: false,
      value: response_info.headers
    });
    for (let [header_name, header_value] of response_info.headers) {
      response_obj.headers.append(header_name, header_value);
    }

    //hack to fix invalid blob type
    let response_proto = Object.getPrototypeOf(response_obj);
    response_obj.blob = async () => {
      let blob = await response_proto.blob.call(response_obj);
      let mime_type = blob.type.split(";")[0].trim();
      Object.defineProperty(blob, "type", {
        value: mime_type
      });
      return blob;
    }
    
    return response_obj;
  }

  static async create_options(params) {
    let body = null;
    if (params.body instanceof ReadableStream) {
      params.duplex = "half";
    }

    let request_obj = new Request("http://127.0.0.1/", params);
    let array_buffer = await request_obj.arrayBuffer();
    if (array_buffer.byteLength > 0) {
      body = new Uint8Array(array_buffer);
    }
    
    let headers = params.headers || {};
    if (headers instanceof Headers) {
      headers = Object.fromEntries(headers);
    }
    params.headers = new HeadersDict(headers);

    if (params.referrer) {
      params.headers["Referer"] = params.referrer;
    }
    if (!params.headers["User-Agent"]) {
      params.headers["User-Agent"] = navigator.userAgent;
    }
    if (body && !params.headers["Content-Type"]) {
      params.headers["Content-Type"] = request_obj.headers.get("Content-Type") || "";
    }

    return body;
  }
}class CurlWebSocket extends CurlSession {
  constructor(url, protocols=[], options={}) {    
    if (!url.startsWith("wss://") && !url.startsWith("ws://")) {
      throw new SyntaxError("invalid url");
    }
    super();
    
    this.url = url;
    this.protocols = protocols;
    this.options = options;

    this.onopen = () => {};
    this.onerror = () => {};
    this.onmessage = () => {};
    this.onclose = () => {};

    this.connected = false;
    this.recv_loop = null;
    this.http_handle = null;
    this.recv_buffer = [];

    try {
      check_proxy(this.options.proxy);
      this.set_connections(1, 0);
      this.connect();
    }
    catch (e) {
      this.cleanup(true);
      throw e;
    }
  }

  connect() {
    let data_callback = () => {};
    let headers_callback = () => {};
    let finish_callback = (error) => {
      if (error === 0) {
        this.connected = true;
        this.recv_loop = setInterval(() => {
          let data = this.recv();
          if (data !== null) this.onmessage(data);
        }, 0);
        this.onopen();
      }
      else {
        this.cleanup(error);
      }
    };
    let request_options = {
      headers: this.options.headers || {}
    };
    if (this.protocols) {
      if (typeof this.protocols === "string")
        this.protocols = [this.protocols];
      request_options.headers["Sec-Websocket-Protocol"] = this.protocols.join(", ");
    }
    if (this.options.verbose) {
      request_options._libcurl_verbose = 1;
    }

    this.http_handle = this.create_request(this.url, data_callback, finish_callback, headers_callback);
    c_func(_http_set_options, [this.http_handle, JSON.stringify(request_options), null, 0]);
    _websocket_set_options(this.http_handle);
    if (this.options.proxy) {
      c_func_str(_request_set_proxy, [this.http_handle, this.options.proxy]);
    }
    this.start_request(this.http_handle);
  }

  recv() {
    let buffer_size = 64*1024;
    let result_ptr = _recv_from_websocket(this.http_handle, buffer_size);
    let data_ptr = _get_result_buffer(result_ptr);
    let result_code = _get_result_code(result_ptr);
    let result_closed = _get_result_closed(result_ptr);
    let returned_data = null;

    //CURLE_OK - data received 
    if (result_code === 0 && !result_closed) {
      let data_size = _get_result_size(result_ptr);
      let data_heap = Module.HEAPU8.subarray(data_ptr, data_ptr + data_size);
      let data = new Uint8Array(data_heap);
      
      this.recv_buffer.push(data);
      if (data_size !== buffer_size && !_get_result_bytes_left(result_ptr)) { //message finished
        let full_data = merge_arrays(this.recv_buffer);
        let is_text = _get_result_is_text(result_ptr)
        this.recv_buffer = [];
        if (is_text) {
          returned_data = new TextDecoder().decode(full_data);
        }
        else {
          returned_data = full_data;
        }
      }
    }
    
    // websocket was cleanly closed by the server
    else if (result_code === 0 && result_closed) {
      this.cleanup();
    }

    //code is not CURLE_AGAIN - an error must have occurred
    else if (result_code !== 81) {
      this.cleanup(result_code);
    }
    
    _free(data_ptr);
    _free(result_ptr);
    return returned_data;
  }

  cleanup(error=0) {
    if (!this.connected)
      return;
    if (this.recv_loop) 
      clearInterval(this.recv_loop);
    
    super.close();
    this.connected = false;

    if (error) {
      error_msg(`Websocket "${this.url}" encountered error code ${error}: ${get_error_str(error)}`);
      this.onerror(error);
    }
    else {
      this.onclose();
    }
  }

  send(data) {
    let is_text = typeof data === "string";
    if (!this.connected) return;

    if (is_text) {
      data = new TextEncoder().encode(data);
    }
    let data_ptr = allocate_array(data);
    let data_len = data.length;
    _send_to_websocket(this.http_handle, data_ptr, data_len, is_text);
    _free(data_ptr);
  }

  close() {
    this.cleanup();
  }
}//class for websocket polyfill

class FakeWebSocket extends EventTarget {
  constructor(url, protocols=[], options={}) {
    super();

    this.url = url;
    this.protocols = protocols;
    this.options = options;
    this.binaryType = "blob";

    //legacy event handlers
    this.onopen = () => {};
    this.onerror = () => {};
    this.onmessage = () => {};
    this.onclose = () => {};

    this.CONNECTING = 0;
    this.OPEN = 1;
    this.CLOSING = 2;
    this.CLOSED = 3;
    this.status = this.CONNECTING;

    this.socket = null;
    this.connect();
  }

  connect() {
    this.socket = new CurlWebSocket(this.url, this.protocols, this.options);

    this.socket.onopen = () => {
      this.status = this.OPEN;
      let open_event = new Event("open");
      this.onopen(open_event);
      this.dispatchEvent(open_event);
    }

    this.socket.onclose = () => {
      this.status = this.CLOSED;
      let close_event = new CloseEvent("close");
      this.dispatchEvent(close_event);
      this.onclose(close_event);
    };

    this.socket.onerror = (error) => {
      this.status = this.CLOSED;
      let error_event = new Event("error");
      this.dispatchEvent(error_event);
      this.onerror(error_event);
    }

    this.socket.onmessage = (data) => {
      let converted;
      if (typeof data === "string") {
        converted = data;
      }
      else { //binary frame received as uint8array
        if (this.binaryType == "blob") {
          converted = new Blob(data);
        }
        else if (this.binaryType == "arraybuffer") {
          converted = data.buffer;
        }
        else {
          throw new TypeError("invalid binaryType string");
        }
      }

      let msg_event = new MessageEvent("message", {data: converted});
      this.onmessage(msg_event);
      this.dispatchEvent(msg_event);
    }
  }

  send(data) {
    if (this.status === this.CONNECTING) {
      throw new DOMException("websocket not ready yet");
    }
    if (this.status === this.CLOSED) {
      return;
    }

    if (data instanceof Blob) {
      (async () => {
        let array_buffer = await data.arrayBuffer();
        this.socket.send(new Uint8Array(array_buffer));
      })();
    }
    else if (typeof data === "string") {
      this.socket.send(data);
    }
    else {
      this.socket.send(data_to_array(data));
    }
  }

  close() {
    this.status = this.CLOSING;
    this.socket.close();
  }

  get readyState() {
    return this.status;
  }
  get bufferedAmount() {
    return 0;
  }
  get protocol() {
    return this.protocols[0] || "";
  }
  get extensions() {
    return "";
  }
}class TLSSocket extends CurlSession {
  constructor(hostname, port, options={}) {
    super();

    this.hostname = hostname;
    this.port = port;
    this.url = `https://${hostname}:${port}`;
    this.options = options;

    this.onopen = () => {};
    this.onerror = () => {};
    this.onmessage = () => {};
    this.onclose = () => {};

    this.connected = false;
    this.recv_loop = null;

    try {
      check_proxy(this.options.proxy);
      this.set_connections(1, 0);
      this.connect();
    }
    catch (e) {
      this.cleanup(true);
      throw e;
    }
  }

  connect() {
    let data_callback = () => {};
    let headers_callback = () => {};
    let finish_callback = (error) => {
      if (error === 0) {
        this.connected = true;
        this.recv_loop = setInterval(() => {
          let data = this.recv();
          if (data != null) this.onmessage(data);
        }, 0);
        this.onopen();
      }
      else {
        this.cleanup(error);
      }
    }

    this.http_handle = this.create_request(this.url, data_callback, finish_callback, headers_callback);
    _tls_socket_set_options(this.http_handle, +this.options.verbose);
    if (this.options.insecure) {
      c_func(_request_set_insecure, [this.http_handle, 1]);
    }
    if (this.options.proxy) {
      c_func_str(_request_set_proxy, [this.http_handle, this.options.proxy]);
    }
    this.start_request(this.http_handle);
  }

  recv() {
    let buffer_size = 64*1024;
    let result_ptr = _recv_from_socket(this.http_handle, buffer_size);
    let data_ptr = _get_result_buffer(result_ptr);
    let result_code = _get_result_code(result_ptr);
    let result_closed = _get_result_closed(result_ptr);

    if (result_code === 0 && !result_closed) { //CURLE_OK - data received 
      let data_size = _get_result_size(result_ptr);
      let data_heap = Module.HEAPU8.subarray(data_ptr, data_ptr + data_size);
      let data = new Uint8Array(data_heap);
      this.onmessage(data)
    }
    
    else if (result_code === 0 && result_closed) {
      this.cleanup();
    }

    else if (result_code != 81) {
      this.cleanup(result_code);
    }

    _free(data_ptr);
    _free(result_ptr);
  }

  send(data_array) {
    if (!this.connected) return;
    let data_ptr = allocate_array(data_array);
    let data_len = data_array.length;
    _send_to_socket(this.http_handle, data_ptr, data_len);
    _free(data_ptr);
  }

  cleanup(error=false) {
    if (this.http_handle) {
      this.remove_request(this.http_handle);
      this.http_handle = null;
      super.close();
    }
    else return;
    
    clearInterval(this.recv_loop);
    this.connected = false;

    if (error) {
      this.onerror(error);
    }
    else {
      this.onclose();
    }
  }

  close() {
    this.cleanup();
  }
}
var websocket_url = null;
var wasm_ready = false;
var version_dict = null;
var api = null;
var main_session = null;
const libcurl_version = "0.7.4";
const wisp_version = "1.1.1";

function check_loaded(check_websocket) {
  if (!wasm_ready) {
    throw new Error("wasm not loaded yet, please call libcurl.load_wasm first");
  }
  if (!websocket_url && check_websocket) {
    throw new Error("websocket proxy url not set, please call libcurl.set_websocket");
  }
}
function set_websocket_url(url) {
  websocket_url = url;
  if (typeof Module.websocket === "undefined") 
    Module.websocket = {};
  if (typeof SOCKFS.websocketArgs !== "undefined") 
    SOCKFS.websocketArgs.url = url;
  Module.websocket.url = url;
  if (!main_session && wasm_ready) {
    setup_main_session();
  }
}

function get_version() {
  if (!wasm_ready) return null;
  if (version_dict) return version_dict;

  let version_ptr = _get_version();
  let version_str = UTF8ToString(version_ptr);
  _free(version_ptr);
  version_dict = JSON.parse(version_str);
  version_dict.lib = libcurl_version;
  version_dict.wisp = wisp_version;
  return version_dict;
}

function get_cacert() {
  return UTF8ToString(_get_cacert());
}

function setup_main_session() {
  main_session = new HTTPSession();
  api.fetch = main_session.fetch.bind(main_session);
}

function main() {
  wasm_ready = true;
  _init_curl();

  if (!main_session && websocket_url) {
    setup_main_session();
  }

  let load_event = new Event("libcurl_load");
  api.events.dispatchEvent(load_event);
  api.onload();
  if (ENVIRONMENT_IS_WEB) {
    document.dispatchEvent(load_event);
  }
}

function abort_callback(reason) {
  let abort_event = new CustomEvent("libcurl_abort", {detail: reason});
  api.events.dispatchEvent(abort_event);
  if (ENVIRONMENT_IS_WEB) {
    document.dispatchEvent(abort_event);
  }
}

function load_wasm(url) {
  if (wasm_ready) return;

  //skip this if we are running in single file mode
  if (!wasmBinaryFile || !isDataURI(wasmBinaryFile)) {
    wasmBinaryFile = url;
    createWasm();
    run();  
  }

  return new Promise((resolve, reject) => {
    if (wasm_ready) return resolve();
    api.events.addEventListener("libcurl_load", () => {
      resolve();
    }, {once: true});
    api.events.addEventListener("libcurl_abort", (event) => {
      reject(event.detail);
    }, {once: true});
  });
}

Module.onRuntimeInitialized = main;
Module.onAbort = abort_callback;

api = {
  set_websocket: set_websocket_url,
  load_wasm: load_wasm,
  get_cacert: get_cacert,
  get_error_string: get_error_str,

  wisp: {
    wisp_connections: _wisp_connections,
    WispConnection: WispConnection,
    WispWebSocket: WispWebSocket  
  },

  transport: "wisp",

  WebSocket: FakeWebSocket,
  CurlWebSocket: CurlWebSocket,
  TLSSocket: TLSSocket,
  HTTPSession: HTTPSession,
  fetch() {
    check_loaded(true);
    throw new Error("not ready")
  },
  
  get copyright() {return copyright_notice},
  get version() {return get_version()},
  get ready() {return wasm_ready},
  get websocket_url() {return websocket_url},

  get stdout() {return out},
  set stdout(callback) {out = callback},
  get stderr() {return err},
  set stderr(callback) {err = callback},
  get logger() {return logger},
  set logger(func) {logger = func},

  onload() {},
  events: new EventTarget()
};

return api;

})()