@npcz/magic/dist/magic-js.js

Emscripten port of libmagic (https://darwinsys.com/file/) with javascript interface

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readline=="function"){result=readline();if(result!==null){result+="\n"}}if(!result){return null}FS_stdin_getChar_buffer=intArrayFromString(result,true)}return FS_stdin_getChar_buffer.shift()};var TTY={ttys:[],init(){},shutdown(){},register(dev,ops){TTY.ttys[dev]={input:[],output:[],ops:ops};FS.registerDevice(dev,TTY.stream_ops)},stream_ops:{open(stream){var tty=TTY.ttys[stream.node.rdev];if(!tty){throw new FS.ErrnoError(43)}stream.tty=tty;stream.seekable=false},close(stream){stream.tty.ops.fsync(stream.tty)},fsync(stream){stream.tty.ops.fsync(stream.tty)},read(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(stream,buffer,offset,length,pos){if(!stream.tty||!stream.tty.ops.put_char){throw new FS.ErrnoError(60)}try{for(var i=0;i<length;i++){stream.tty.ops.put_char(stream.tty,buffer[offset+i])}}catch(e){throw new FS.ErrnoError(29)}if(length){stream.node.timestamp=Date.now()}return i}},default_tty_ops:{get_char(tty){return FS_stdin_getChar()},put_char(tty,val){if(val===null||val===10){out(UTF8ArrayToString(tty.output,0));tty.output=[]}else{if(val!=0)tty.output.push(val)}},fsync(tty){if(tty.output&&tty.output.length>0){out(UTF8ArrayToString(tty.output,0));tty.output=[]}},ioctl_tcgets(tty){return{c_iflag:25856,c_oflag:5,c_cflag:191,c_lflag:35387,c_cc:[3,28,127,21,4,0,1,0,17,19,26,0,18,15,23,22,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]}},ioctl_tcsets(tty,optional_actions,data){return 0},ioctl_tiocgwinsz(tty){return[24,80]}},default_tty1_ops:{put_char(tty,val){if(val===null||val===10){err(UTF8ArrayToString(tty.output,0));tty.output=[]}else{if(val!=0)tty.output.push(val)}},fsync(tty){if(tty.output&&tty.output.length>0){err(UTF8ArrayToString(tty.output,0));tty.output=[]}}}};var mmapAlloc=size=>{abort("internal error: mmapAlloc called but `emscripten_builtin_memalign` native symbol not exported")};var MEMFS={ops_table:null,mount(mount){return MEMFS.createNode(null,"/",16384|511,0)},createNode(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(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(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(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(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(node,attr){if(attr.mode!==undefined){node.mode=attr.mode}if(attr.timestamp!==undefined){node.timestamp=attr.timestamp}if(attr.size!==undefined){MEMFS.resizeFileStorage(node,attr.size)}},lookup(parent,name){throw FS.genericErrors[44]},mknod(parent,name,mode,dev){return MEMFS.createNode(parent,name,mode,dev)},rename(old_node,new_dir,new_name){if(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(parent,name){delete parent.contents[name];parent.timestamp=Date.now()},rmdir(parent,name){var node=FS.lookupNode(parent,name);for(var i in node.contents){throw new FS.ErrnoError(55)}delete parent.contents[name];parent.timestamp=Date.now()},readdir(node){var entries=[".",".."];for(var key in node.contents){if(!node.contents.hasOwnProperty(key)){continue}entries.push(key)}return entries},symlink(parent,newname,oldpath){var node=MEMFS.createNode(parent,newname,511|40960,0);node.link=oldpath;return node},readlink(node){if(!FS.isLink(node.mode)){throw new FS.ErrnoError(28)}return node.link}},stream_ops:{read(stream,buffer,offset,length,position){var contents=stream.node.contents;if(position>=stream.node.usedBytes)return 0;var size=Math.min(stream.node.usedBytes-position,length);assert(size>=0);if(size>8&&contents.subarray){buffer.set(contents.subarray(position,position+size),offset)}else{for(var i=0;i<size;i++)buffer[offset+i]=contents[position+i]}return size},write(stream,buffer,offset,length,position,canOwn){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(stream,offset,whence){var position=offset;if(whence===1){position+=stream.position}else if(whence===2){if(FS.isFile(stream.node.mode)){position+=stream.node.usedBytes}}if(position<0){throw new FS.ErrnoError(28)}return position},allocate(stream,offset,length){MEMFS.expandFileStorage(stream.node,offset+length);stream.node.usedBytes=Math.max(stream.node.usedBytes,offset+length)},mmap(stream,length,position,prot,flags){if(!FS.isFile(stream.node.mode)){throw new FS.ErrnoError(43)}var ptr;var allocated;var contents=stream.node.contents;if(!(flags&2)&&contents.buffer===HEAP8.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(stream,buffer,offset,length,mmapFlags){MEMFS.stream_ops.write(stream,buffer,0,length,offset,false);return 0}}};var asyncLoad=(url,onload,onerror,noRunDep)=>{var dep=!noRunDep?getUniqueRunDependency(`al ${url}`):"";readAsync(url,arrayBuffer=>{assert(arrayBuffer,`Loading data file "${url}" failed (no arrayBuffer).`);onload(new Uint8Array(arrayBuffer));if(dep)removeRunDependency(dep)},event=>{if(onerror){onerror()}else{throw`Loading data file "${url}" failed.`}});if(dep)addRunDependency(dep)};var FS_createDataFile=(parent,name,fileData,canRead,canWrite,canOwn)=>{FS.createDataFile(parent,name,fileData,canRead,canWrite,canOwn)};var preloadPlugins=Module["preloadPlugins"]||[];var FS_handledByPreloadPlugin=(byteArray,fullname,finish,onerror)=>{if(typeof Browser!="undefined")Browser.init();var handled=false;preloadPlugins.forEach(plugin=>{if(handled)return;if(plugin["canHandle"](fullname)){plugin["handle"](byteArray,fullname,finish,onerror);handled=true}});return handled};var FS_createPreloadedFile=(parent,name,url,canRead,canWrite,onload,onerror,dontCreateFile,canOwn,preFinish)=>{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(FS_handledByPreloadPlugin(byteArray,fullname,finish,()=>{if(onerror)onerror();removeRunDependency(dep)})){return}finish(byteArray)}addRunDependency(dep);if(typeof url=="string"){asyncLoad(url,byteArray=>processData(byteArray),onerror)}else{processData(url)}};var FS_modeStringToFlags=str=>{var flagModes={"r":0,"r+":2,"w":512|64|1,"w+":512|64|2,"a":1024|64|1,"a+":1024|64|2};var flags=flagModes[str];if(typeof flags=="undefined"){throw new Error(`Unknown file open mode: ${str}`)}return flags};var FS_getMode=(canRead,canWrite)=>{var mode=0;if(canRead)mode|=292|73;if(canWrite)mode|=146;return mode};var ERRNO_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 NODEFS={isWindows:false,staticInit(){NODEFS.isWindows=!!process.platform.match(/^win/);var flags=process.binding("constants");if(flags["fs"]){flags=flags["fs"]}NODEFS.flagsForNodeMap={1024:flags["O_APPEND"],64:flags["O_CREAT"],128:flags["O_EXCL"],256:flags["O_NOCTTY"],0:flags["O_RDONLY"],2:flags["O_RDWR"],4096:flags["O_SYNC"],512:flags["O_TRUNC"],1:flags["O_WRONLY"],131072:flags["O_NOFOLLOW"]};assert(NODEFS.flagsForNodeMap["0"]===0)},convertNodeCode(e){var code=e.code;assert(code in ERRNO_CODES,`unexpected node error code: ${code} (${e})`);return ERRNO_CODES[code]},mount(mount){assert(ENVIRONMENT_IS_NODE);return NODEFS.createNode(null,"/",NODEFS.getMode(mount.opts.root),0)},createNode(parent,name,mode,dev){if(!FS.isDir(mode)&&!FS.isFile(mode)&&!FS.isLink(mode)){throw new FS.ErrnoError(28)}var node=FS.createNode(parent,name,mode);node.node_ops=NODEFS.node_ops;node.stream_ops=NODEFS.stream_ops;return node},getMode(path){var stat;try{stat=fs.lstatSync(path);if(NODEFS.isWindows){stat.mode=stat.mode|(stat.mode&292)>>2}}catch(e){if(!e.code)throw e;throw new FS.ErrnoError(NODEFS.convertNodeCode(e))}return stat.mode},realPath(node){var parts=[];while(node.parent!==node){parts.push(node.name);node=node.parent}parts.push(node.mount.opts.root);parts.reverse();return PATH.join.apply(null,parts)},flagsForNode(flags){flags&=~2097152;flags&=~2048;flags&=~32768;flags&=~524288;flags&=~65536;var newFlags=0;for(var k in NODEFS.flagsForNodeMap){if(flags&k){newFlags|=NODEFS.flagsForNodeMap[k];flags^=k}}if(flags){throw new FS.ErrnoError(28)}return newFlags},node_ops:{getattr(node){var path=NODEFS.realPath(node);var stat;try{stat=fs.lstatSync(path)}catch(e){if(!e.code)throw e;throw new FS.ErrnoError(NODEFS.convertNodeCode(e))}if(NODEFS.isWindows&&!stat.blksize){stat.blksize=4096}if(NODEFS.isWindows&&!stat.blocks){stat.blocks=(stat.size+stat.blksize-1)/stat.blksize|0}return{dev:stat.dev,ino:stat.ino,mode:stat.mode,nlink:stat.nlink,uid:stat.uid,gid:stat.gid,rdev:stat.rdev,size:stat.size,atime:stat.atime,mtime:stat.mtime,ctime:stat.ctime,blksize:stat.blksize,blocks:stat.blocks}},setattr(node,attr){var path=NODEFS.realPath(node);try{if(attr.mode!==undefined){fs.chmodSync(path,attr.mode);node.mode=attr.mode}if(attr.timestamp!==undefined){var date=new Date(attr.timestamp);fs.utimesSync(path,date,date)}if(attr.size!==undefined){fs.truncateSync(path,attr.size)}}catch(e){if(!e.code)throw e;throw new FS.ErrnoError(NODEFS.convertNodeCode(e))}},lookup(parent,name){var path=PATH.join2(NODEFS.realPath(parent),name);var mode=NODEFS.getMode(path);return NODEFS.createNode(parent,name,mode)},mknod(parent,name,mode,dev){var node=NODEFS.createNode(parent,name,mode,dev);var path=NODEFS.realPath(node);try{if(FS.isDir(node.mode)){fs.mkdirSync(path,node.mode)}else{fs.writeFileSync(path,"",{mode:node.mode})}}catch(e){if(!e.code)throw e;throw new FS.ErrnoError(NODEFS.convertNodeCode(e))}return node},rename(oldNode,newDir,newName){var oldPath=NODEFS.realPath(oldNode);var newPath=PATH.join2(NODEFS.realPath(newDir),newName);try{fs.renameSync(oldPath,newPath)}catch(e){if(!e.code)throw e;throw new FS.ErrnoError(NODEFS.convertNodeCode(e))}oldNode.name=newName},unlink(parent,name){var path=PATH.join2(NODEFS.realPath(parent),name);try{fs.unlinkSync(path)}catch(e){if(!e.code)throw e;throw new FS.ErrnoError(NODEFS.convertNodeCode(e))}},rmdir(parent,name){var path=PATH.join2(NODEFS.realPath(parent),name);try{fs.rmdirSync(path)}catch(e){if(!e.code)throw e;throw new FS.ErrnoError(NODEFS.convertNodeCode(e))}},readdir(node){var path=NODEFS.realPath(node);try{return fs.readdirSync(path)}catch(e){if(!e.code)throw e;throw new FS.ErrnoError(NODEFS.convertNodeCode(e))}},symlink(parent,newName,oldPath){var newPath=PATH.join2(NODEFS.realPath(parent),newName);try{fs.symlinkSync(oldPath,newPath)}catch(e){if(!e.code)throw e;throw new FS.ErrnoError(NODEFS.convertNodeCode(e))}},readlink(node){var path=NODEFS.realPath(node);try{path=fs.readlinkSync(path);path=nodePath.relative(nodePath.resolve(node.mount.opts.root),path);return path}catch(e){if(!e.code)throw e;if(e.code==="UNKNOWN")throw new FS.ErrnoError(28);throw new FS.ErrnoError(NODEFS.convertNodeCode(e))}}},stream_ops:{open(stream){var path=NODEFS.realPath(stream.node);try{if(FS.isFile(stream.node.mode)){stream.nfd=fs.openSync(path,NODEFS.flagsForNode(stream.flags))}}catch(e){if(!e.code)throw e;throw new FS.ErrnoError(NODEFS.convertNodeCode(e))}},close(stream){try{if(FS.isFile(stream.node.mode)&&stream.nfd){fs.closeSync(stream.nfd)}}catch(e){if(!e.code)throw e;throw new FS.ErrnoError(NODEFS.convertNodeCode(e))}},read(stream,buffer,offset,length,position){if(length===0)return 0;try{return fs.readSync(stream.nfd,new Int8Array(buffer.buffer,offset,length),{position:position})}catch(e){throw new FS.ErrnoError(NODEFS.convertNodeCode(e))}},write(stream,buffer,offset,length,position){try{return fs.writeSync(stream.nfd,new Int8Array(buffer.buffer,offset,length),{position:position})}catch(e){throw new FS.ErrnoError(NODEFS.convertNodeCode(e))}},llseek(stream,offset,whence){var position=offset;if(whence===1){position+=stream.position}else if(whence===2){if(FS.isFile(stream.node.mode)){try{var stat=fs.fstatSync(stream.nfd);position+=stat.size}catch(e){throw new FS.ErrnoError(NODEFS.convertNodeCode(e))}}}if(position<0){throw new FS.ErrnoError(28)}return position},mmap(stream,length,position,prot,flags){if(!FS.isFile(stream.node.mode)){throw new FS.ErrnoError(43)}var ptr=mmapAlloc(length);NODEFS.stream_ops.read(stream,HEAP8,ptr,length,position);return{ptr:ptr,allocated:true}},msync(stream,buffer,offset,length,mmapFlags){NODEFS.stream_ops.write(stream,buffer,0,length,offset,false);return 0}}};var NODERAWFS={lookup(parent,name){assert(parent);assert(parent.path);return FS.lookupPath(`${parent.path}/${name}`).node},lookupPath(path,opts={}){if(opts.parent){path=nodePath.dirname(path)}var st=fs.lstatSync(path);var mode=NODEFS.getMode(path);return{path:path,node:{id:st.ino,mode:mode,node_ops:NODERAWFS,path:path}}},createStandardStreams(){FS.createStream({nfd:0,position:0,path:"",flags:0,tty:true,seekable:false},0);for(var i=1;i<3;i++){FS.createStream({nfd:i,position:0,path:"",flags:577,tty:true,seekable:false},i)}},cwd(){return process.cwd()},chdir(){process.chdir.apply(void 0,arguments)},mknod(path,mode){if(FS.isDir(path)){fs.mkdirSync(path,mode)}else{fs.writeFileSync(path,"",{mode:mode})}},mkdir(){fs.mkdirSync.apply(void 0,arguments)},symlink(){fs.symlinkSync.apply(void 0,arguments)},rename(){fs.renameSync.apply(void 0,arguments)},rmdir(){fs.rmdirSync.apply(void 0,arguments)},readdir(){return[".",".."].concat(fs.readdirSync.apply(void 0,arguments))},unlink(){fs.unlinkSync.apply(void 0,arguments)},readlink(){return fs.readlinkSync.apply(void 0,arguments)},stat(){return fs.statSync.apply(void 0,arguments)},lstat(){return fs.lstatSync.apply(void 0,arguments)},chmod(){fs.chmodSync.apply(void 0,arguments)},fchmod(fd,mode){var stream=FS.getStreamChecked(fd);fs.fchmodSync(stream.nfd,mode)},chown(){fs.chownSync.apply(void 0,arguments)},fchown(fd,owner,group){var stream=FS.getStreamChecked(fd);fs.fchownSync(stream.nfd,owner,group)},truncate(){fs.truncateSync.apply(void 0,arguments)},ftruncate(fd,len){if(len<0){throw new FS.ErrnoError(28)}var stream=FS.getStreamChecked(fd);fs.ftruncateSync(stream.nfd,len)},utime(path,atime,mtime){fs.utimesSync(path,atime/1e3,mtime/1e3)},open(path,flags,mode){if(typeof flags=="string"){flags=FS_modeStringToFlags(flags)}var pathTruncated=path.split("/").map(function(s){return s.substr(0,255)}).join("/");var nfd=fs.openSync(pathTruncated,NODEFS.flagsForNode(flags),mode);var st=fs.fstatSync(nfd);if(flags&65536&&!st.isDirectory()){fs.closeSync(nfd);throw new FS.ErrnoError(ERRNO_CODES.ENOTDIR)}var newMode=NODEFS.getMode(pathTruncated);var node={id:st.ino,mode:newMode,node_ops:NODERAWFS,path:path};return FS.createStream({nfd:nfd,position:0,path:path,flags:flags,node:node,seekable:true})},createStream(stream,fd){var rtn=VFS.createStream(stream,fd);if(typeof rtn.shared.refcnt=="undefined"){rtn.shared.refcnt=1}else{rtn.shared.refcnt++}return rtn},close(stream){VFS.closeStream(stream.fd);if(!stream.stream_ops&&--stream.shared.refcnt===0){fs.closeSync(stream.nfd)}},llseek(stream,offset,whence){if(stream.stream_ops){return VFS.llseek(stream,offset,whence)}var position=offset;if(whence===1){position+=stream.position}else if(whence===2){position+=fs.fstatSync(stream.nfd).size}else if(whence!==0){throw new FS.ErrnoError(28)}if(position<0){throw new FS.ErrnoError(28)}stream.position=position;return position},read(stream,buffer,offset,length,position){if(stream.stream_ops){return VFS.read(stream,buffer,offset,length,position)}var seeking=typeof position!="undefined";if(!seeking&&stream.seekable)position=stream.position;var bytesRead=fs.readSync(stream.nfd,new Int8Array(buffer.buffer,offset,length),{position:position});if(!seeking)stream.position+=bytesRead;return bytesRead},write(stream,buffer,offset,length,position){if(stream.stream_ops){return VFS.write(stream,buffer,offset,length,position)}if(stream.flags&+"1024"){FS.llseek(stream,0,+"2")}var seeking=typeof position!="undefined";if(!seeking&&stream.seekable)position=stream.position;var bytesWritten=fs.writeSync(stream.nfd,new Int8Array(buffer.buffer,offset,length),{position:position});if(!seeking)stream.position+=bytesWritten;return bytesWritten},allocate(){throw new FS.ErrnoError(138)},mmap(stream,length,position,prot,flags){if(stream.stream_ops){return VFS.mmap(stream,length,position,prot,flags)}var ptr=mmapAlloc(length);FS.read(stream,HEAP8,ptr,length,position);return{ptr:ptr,allocated:true}},msync(stream,buffer,offset,length,mmapFlags){if(stream.stream_ops){return VFS.msync(stream,buffer,offset,length,mmapFlags)}FS.write(stream,buffer,0,length,offset);return 0},munmap(){return 0},ioctl(){throw new FS.ErrnoError(59)}};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 demangle=func=>{warnOnce("warning: build with -sDEMANGLE_SUPPORT to link in libcxxabi demangling");return func};var demangleAll=text=>{var regex=/\b_Z[\w\d_]+/g;return text.replace(regex,function(x){var y=demangle(x);return x===y?x:y+" ["+x+"]"})};var FS={root:null,mounts:[],devices:{},streams:[],nextInode:1,nameTable:null,currentPath:"/",initialized:false,ignorePermissions:true,ErrnoError:null,genericErrors:{},filesystems:null,syncFSRequests:0,lookupPath(path,opts={}){path=PATH_FS.resolve(path);if(!path)return{path:"",node:null};var defaults={follow_mount:true,recurse_count:0};opts=Object.assign(defaults,opts);if(opts.recurse_count>8){throw new FS.ErrnoError(32)}var parts=path.split("/").filter(p=>!!p);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.m