Error: write EPIPE - Githubissues

dimikot commented 12 years ago

The following script (run_stdin.js):

var Sandbox = require('./sandbox/lib/sandbox');
var s = new Sandbox();
var code = '';
var stdin = process.stdin;
stdin.resume();
stdin.setEncoding('utf8');
stdin.on('data', function(data) { code += data });
stdin.on('end', function() {
    s.run(code, function(output) {
        console.log(output);
    });
});

The following error when I run it:

# node -v
v0.6.8
# echo "1+1" | node run_stdin.js

node.js:201
        throw e; // process.nextTick error, or 'error' event on first tick
              ^
Error: write EPIPE
    at errnoException (net.js:642:11)
    at Object.afterWrite [as oncomplete] (net.js:480:18)

If I replace stdin reading with direct

s.run("1+1", function(output) {
    console.log(output);
});

everything works fine.

How to deal with this?..

dimikot commented 12 years ago

I suppose the same happens when I use stdin in the script, and after that I call sandbox ASYNCHRONOUSLY (even on setTimeout). The following script produces exactly the same EPIPE error:

var Sandbox = require('./sandbox/lib/sandbox');
var s = new Sandbox();
var stdin = process.openStdin();
stdin.on('end', function() { console.log("end"); });
setTimeout(function() {
    s.run('1+1', function(output) { console.log(output); })
}, 1000);

bmeck commented 12 years ago

what does node -e 'process.versions' print out.

On Tue, Jan 24, 2012 at 9:14 AM, Dmitry Koterov reply@reply.github.com wrote:

The following script (run_stdin.js):
var Sandbox = require('./sandbox/lib/sandbox');
var s = new Sandbox();
var code = '';
var stdin = process.stdin;
stdin.resume();
stdin.setEncoding('utf8');
stdin.on('data', function(data) { code += data });
stdin.on('end', function() {
   s.run(code, function(output) {
       console.log(output);
   });
});
```javascript

The following error when I run it:
echo "1+1" | node run_stdin.js

node.js:201 throw e; // process.nextTick error, or 'error' event on first tick ^ Error: write EPIPE at errnoException (net.js:642:11) at Object.afterWrite as oncomplete
If I replace stdin reading with direct

```javascript
s.run("1+1", function(output) {
   console.log(output);
});
everything works fine.

How to deal with this?..

Reply to this email directly or view it on GitHub: https://github.com/gf3/sandbox/issues/15

dimikot commented 12 years ago

# node -e "console.log(process.versions)"
{ node: '0.6.8',
  v8: '3.6.6.19',
  ares: '1.7.5-DEV',
  uv: '0.6',
  openssl: '0.9.8e-fips-rhel5' }

gf3 commented 12 years ago

Tested and verified as a bug on the latest node (0.7.1).

radare commented 12 years ago

Looks like it's fixed in 0.7.12.

dimikot commented 9 years ago

Seems 0.10 does not work still:

root@.../sandbox-master/example# cat /etc/os-release
PRETTY_NAME="Debian GNU/Linux 7 (wheezy)"
NAME="Debian GNU/Linux"
VERSION_ID="7"
VERSION="7 (wheezy)"
...

root@...sandbox-master/example# nodejs -e "console.log(process.versions)"
{ http_parser: '1.0',
  node: '0.10.26',
  v8: '3.14.5.8',
  ares: '1.9.1',
  uv: '0.10.25',
  zlib: '1.2.7',
  modules: '11',
  openssl: '1.0.1e' }

root@.../sandbox-master/example# nodejs --version
v0.10.26

root@.../sandbox-master/example# nodejs example.js
Example 11: sending message into the sandbox 'hello from outside'

events.js:72
        throw er; // Unhandled 'error' event
              ^
Error: write EPIPE
    at errnoException (net.js:904:11)
    at Object.afterWrite (net.js:720:19)

dimikot commented 9 years ago

Hm...

ln -s /usr/bin/nodejs /usr/bin/node

helped with this error. As well as Sandbox.options.node = 'nodejs'.

gf3 / sandbox

Error: write EPIPE #15

echo "1+1" | node run_stdin.js