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securityos/node_modules/@wasmer/wasi/lib/index.esm.js

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2024-09-06 15:32:35 +00:00
/*
*****************************************************************************
Copyright (c) Microsoft Corporation. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License"); you may not use
this file except in compliance with the License. You may obtain a copy of the
License at http://www.apache.org/licenses/LICENSE-2.0
THIS CODE IS PROVIDED ON AN *AS IS* BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED
WARRANTIES OR CONDITIONS OF TITLE, FITNESS FOR A PARTICULAR PURPOSE,
MERCHANTABLITY OR NON-INFRINGEMENT.
See the Apache Version 2.0 License for specific language governing permissions
and limitations under the License.
*****************************************************************************/
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function bc(a,b){var c=a.FD_MAP.get(b);if(!c)throw new ac(8);if(void 0===c.filetype){var d=a.bindings.fs.fstatSync(c.real);a=cc(a,b,d);b=a.rightsBase;d=a.rightsInheriting;c.filetype=a.filetype;c.rights||(c.rights={base:b,inheriting:d})}return c}
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var ac=function(a){function b(c){var d=a.call(this)||this;d.errno=c;Object.setPrototypeOf(d,b.prototype);return d}ba(b,a);return b}(Error),nb=function(a){function b(c){var d=a.call(this,"WASI Exit error: "+c)||this;d.code=c;Object.setPrototypeOf(d,b.prototype);return d}ba(b,a);return b}(Error),ob=function(a){function b(c){var d=a.call(this,"WASI Kill signal: "+c)||this;d.signal=c;Object.setPrototypeOf(d,b.prototype);return d}ba(b,a);return b}(Error),dc=function(){function a(a){function b(a){switch(a){case 1:return r.hrtime();
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p.readdirSync(a.path,{withFileTypes:!0}),q=b;for(e=Number(e);e<t.length;e+=1){var h=t[e],x=E.byteLength(h.name);if(b-q>c)break;g.view.setBigUint64(b,k(e+1),!0);b+=8;if(b-q>c)break;var l=p.statSync(y.resolve(a.path,h.name));g.view.setBigUint64(b,k(l.ino),!0);b+=8;if(b-q>c)break;g.view.setUint32(b,x,!0);b+=4;if(b-q>c)break;switch(!0){case l.isBlockDevice():l=1;break;case l.isCharacterDevice():l=2;break;case l.isDirectory():l=3;break;case l.isFIFO():l=6;break;case l.isFile():l=4;break;case l.isSocket():l=
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k(c)+k(b);break;case 0:a.offset=k(b)}g.view.setBigUint64(e,a.offset,!0);return 0}),fd_tell:Z(function(a,b){a=d(a,qb);g.refreshMemory();a.offset||(a.offset=k(0));g.view.setBigUint64(b,a.offset,!0);return 0}),fd_sync:Z(function(a){a=d(a,S);p.fsyncSync(a.real);return 0}),path_create_directory:Z(function(a,b,c){a=d(a,tb);if(!a.path)return 28;g.refreshMemory();b=E.from(g.memory.buffer,b,c).toString();p.mkdirSync(y.resolve(a.path,b));return 0}),path_filestat_get:Z(function(a,b,c,e,f){a=d(a,Cb);if(!a.path)return 28;
g.refreshMemory();c=E.from(g.memory.buffer,c,e).toString();c=p.statSync(y.resolve(a.path,c));g.view.setBigUint64(f,k(c.dev),!0);f+=8;g.view.setBigUint64(f,k(c.ino),!0);f+=8;g.view.setUint8(f,cc(g,void 0,c).filetype);f+=8;g.view.setBigUint64(f,k(c.nlink),!0);f+=8;g.view.setBigUint64(f,k(c.size),!0);f+=8;g.view.setBigUint64(f,Y(c.atimeMs),!0);f+=8;g.view.setBigUint64(f,Y(c.mtimeMs),!0);g.view.setBigUint64(f+8,Y(c.ctimeMs),!0);return 0}),path_filestat_set_times:Z(function(a,c,e,f,h,l,n){a=d(a,Eb);if(!a.path)return 28;
g.refreshMemory();var t=p.fstatSync(a.real);c=t.atime;t=t.mtime;var q=$b(b(0));if(3===(n&3)||12===(n&12))return 28;1===(n&1)?c=$b(h):2===(n&2)&&(c=q);4===(n&4)?t=$b(l):8===(n&8)&&(t=q);e=E.from(g.memory.buffer,e,f).toString();p.utimesSync(y.resolve(a.path,e),new Date(c),new Date(t));return 0}),path_link:Z(function(a,b,c,e,f,h,l){a=d(a,vb);f=d(f,wb);if(!a.path||!f.path)return 28;g.refreshMemory();c=E.from(g.memory.buffer,c,e).toString();h=E.from(g.memory.buffer,h,l).toString();p.linkSync(y.resolve(a.path,
c),y.resolve(f.path,h));return 0}),path_open:Z(function(a,b,c,e,f,h,l,n,r){b=d(a,xb);h=k(h);l=k(l);a=(h&(P|yb))!==k(0);var t=(h&(O|T|sb|Ib))!==k(0);if(t&&a)var q=p.constants.O_RDWR;else a?q=p.constants.O_RDONLY:t&&(q=p.constants.O_WRONLY);a=h|xb;h|=l;0!==(f&1)&&(q|=p.constants.O_CREAT,a|=ub);0!==(f&2)&&(q|=p.constants.O_DIRECTORY);0!==(f&4)&&(q|=p.constants.O_EXCL);0!==(f&8)&&(q|=p.constants.O_TRUNC,a|=Db);0!==(n&1)&&(q|=p.constants.O_APPEND);0!==(n&2)&&(q=p.constants.O_DSYNC?q|p.constants.O_DSYNC:
q|p.constants.O_SYNC,h|=O);0!==(n&4)&&(q|=p.constants.O_NONBLOCK);0!==(n&8)&&(q=p.constants.O_RSYNC?q|p.constants.O_RSYNC:q|p.constants.O_SYNC,h|=S);0!==(n&16)&&(q|=p.constants.O_SYNC,h|=S);t&&0===(q&(p.constants.O_APPEND|p.constants.O_TRUNC))&&(h|=Q);g.refreshMemory();c=E.from(g.memory.buffer,c,e).toString();c=y.resolve(b.path,c);if(y.relative(b.path,c).startsWith(".."))return 76;try{var x=p.realpathSync(c);if(y.relative(b.path,x).startsWith(".."))return 76}catch(U){if("ENOENT"===U.code)x=c;else throw U;
}try{var B=p.statSync(x).isDirectory()}catch(U){}q=!t&&B?p.openSync(x,p.constants.O_RDONLY):p.openSync(x,q);B=fa(g.FD_MAP.keys()).reverse()[0]+1;g.FD_MAP.set(B,{real:q,filetype:void 0,rights:{base:a,inheriting:h},path:x});bc(g,B);g.view.setUint32(r,B,!0);return 0}),path_readlink:Z(function(a,b,c,e,f,h){a=d(a,zb);if(!a.path)return 28;g.refreshMemory();b=E.from(g.memory.buffer,b,c).toString();b=y.resolve(a.path,b);b=p.readlinkSync(b);e=E.from(g.memory.buffer).write(b,e,f);g.view.setUint32(h,e,!0);return 0}),
path_remove_directory:Z(function(a,b,c){a=d(a,Lb);if(!a.path)return 28;g.refreshMemory();b=E.from(g.memory.buffer,b,c).toString();p.rmdirSync(y.resolve(a.path,b));return 0}),path_rename:Z(function(a,b,c,e,f,h){a=d(a,Ab);e=d(e,Bb);if(!a.path||!e.path)return 28;g.refreshMemory();b=E.from(g.memory.buffer,b,c).toString();f=E.from(g.memory.buffer,f,h).toString();p.renameSync(y.resolve(a.path,b),y.resolve(e.path,f));return 0}),path_symlink:Z(function(a,b,c,e,f){c=d(c,Kb);if(!c.path)return 28;g.refreshMemory();
a=E.from(g.memory.buffer,a,b).toString();e=E.from(g.memory.buffer,e,f).toString();p.symlinkSync(a,y.resolve(c.path,e));return 0}),path_unlink_file:Z(function(a,b,c){a=d(a,Mb);if(!a.path)return 28;g.refreshMemory();b=E.from(g.memory.buffer,b,c).toString();p.unlinkSync(y.resolve(a.path,b));return 0}),poll_oneoff:function(a,c,d,e){var f=0,h=0;g.refreshMemory();for(var l=0;l<d;l+=1){var n=g.view.getBigUint64(a,!0);a+=8;var p=g.view.getUint8(a);a+=1;switch(p){case 0:a+=7;g.view.getBigUint64(a,!0);a+=8;
var q=g.view.getUint32(a,!0);a+=4;a+=4;p=g.view.getBigUint64(a,!0);a+=8;g.view.getBigUint64(a,!0);a+=8;var t=g.view.getUint16(a,!0);a+=2;a+=6;var x=1===t;t=0;q=k(b(q));null===q?t=28:(p=x?p:q+p,h=p>h?p:h);g.view.setBigUint64(c,n,!0);c+=8;g.view.setUint16(c,t,!0);c+=2;g.view.setUint8(c,0);c+=1;c+=5;f+=1;break;case 1:case 2:a+=3;g.view.getUint32(a,!0);a+=4;g.view.setBigUint64(c,n,!0);c+=8;g.view.setUint16(c,52,!0);c+=2;g.view.setUint8(c,p);c+=1;c+=5;f+=1;break;default:return 28}}for(g.view.setUint32(e,
f,!0);r.hrtime()<h;);return 0},proc_exit:function(a){r.exit(a);return 0},proc_raise:function(a){if(!(a in Xb))return 28;r.kill(Xb[a]);return 0},random_get:function(a,b){g.refreshMemory();r.randomFillSync(new Uint8Array(g.memory.buffer),a,b);return 0},sched_yield:function(){return 0},sock_recv:function(){return 52},sock_send:function(){return 52},sock_shutdown:function(){return 52}};a.traceSyscalls&&Object.keys(this.wasiImport).forEach(function(a){var b=g.wasiImport[a];g.wasiImport[a]=function(){for(var c=
[],d=0;d<arguments.length;d++)c[d]=arguments[d];console.log("WASI: wasiImport called: "+a+" ("+c+")");try{var e=b.apply(void 0,fa(c));console.log("WASI: => "+e);return e}catch(Hb){throw console.log("Catched error: "+Hb),Hb;}}})}a.prototype.refreshMemory=function(){this.view&&0!==this.view.buffer.byteLength||(this.view=new ia(this.memory.buffer))};a.prototype.setMemory=function(a){this.memory=a};a.prototype.start=function(a){a=a.exports;if(null===a||"object"!==typeof a)throw Error("instance.exports must be an Object. Received "+
a+".");var b=a.memory;if(!(b instanceof WebAssembly.Memory))throw Error("instance.exports.memory must be a WebAssembly.Memory. Recceived "+b+".");this.setMemory(b);a._start&&a._start()};a.prototype.getImportNamespace=function(a){var b,d=null;try{for(var e=ca(WebAssembly.Module.imports(a)),f=e.next();!f.done;f=e.next()){var g=f.value;if("function"===g.kind&&g.module.startsWith("wasi_"))if(!d)d=g.module;else if(d!==g.module)throw Error("Multiple namespaces detected.");}}catch(l){var h={error:l}}finally{try{f&&
!f.done&&(b=e.return)&&b.call(e)}finally{if(h)throw h.error;}}return d};a.prototype.getImports=function(a){switch(this.getImportNamespace(a)){case "wasi_unstable":return{wasi_unstable:this.wasiImport};case "wasi_snapshot_preview1":return{wasi_snapshot_preview1:this.wasiImport};default:throw Error("Can't detect a WASI namespace for the WebAssembly Module");}};a.defaultBindings=pb;return a}();export default dc;export{dc as WASI,ac as WASIError,nb as WASIExitError,ob as WASIKillError}