src: add UV_PIPE_NO_TRUNCATE for bind in pipe_wrap.cc

[theanarkh]

Binding a pipe path that is too long can cause problems and confuse the user.

example1:

const net = require('net');
const fs = require('fs');

const filePath = `/tmp/${'x'.repeat(1000)}.sock`;
const server = net.createServer()
    // the path will be truncated
    .listen(filePath)
    .on('listening', () => {
        // here will output true but the socket is not actually bound to filePath
        console.log(server.address() === filePath);
        // here will output false because the file do not exist
        console.log(fs.existsSync(filePath))
    })

example2:

const net = require('net');

const filePath1 = `/tmp/${'x'.repeat(1001)}.sock`;
const filePath2 = `/tmp/${'x'.repeat(1002)}.sock`;
// listen successfully
net.createServer().listen(filePath1);
// here will fail with EADDRINUSE error
net.createServer().listen(filePath2);

I think it is better to throw an error when the pipe path is truncated. But it maybe a breaking change.

• make -j4 test (UNIX), or vcbuild test (Windows) passes
• tests and/or benchmarks are included
• documentation is changed or added
• commit message follows commit guidelines

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CI: https://ci.nodejs.org/job/node-test-pull-request/58082/

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[daeyeon]

Yes, this is definitely a breaking change. As suggested, I think it would be better to throw an error in this case to make users aware of potential problems.

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[jasnell]

@nodejs/tsc ... this needs another TSC review.

[mcollina]

Thanks for opening a PR! Can you please add a unit test?

[daeyeon]

There was a test, but it seems to be accidentally deleted. Please add it again.

[mcollina]

lgtm

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