The uname function can return any non-negative int to indicate success.

Strange, but that's how it is documented.  This also fixes a similar
buffer overflow in the even more unlikely event that info.release is
> 255 characters, similar to how 78c5de59 did for info.sysname.

Fixes #3740

In the case of pipelined requests, you can have a situation where
the socket gets destroyed via one req/res object, but then trying
to destroy *another* req/res on the same socket will cause it to
call undefined.destroy(), since it was already removed from that
message.

Add a guard to OutgoingMessage.destroy and IncomingMessage.destroy
to prevent this error.

Allow the IPv4-mapped-as-IPv6 style address.

It needs to apply the Transform class when the _readableState,
_writableState, or _transformState properties are accessed,
otherwise things like setEncoding and on('data') don't work
properly.

Also, the methods wrappers are no longer needed, since they're only
problematic because they access the undefined properties.

Fixes #5326.

4716dc66 made assert.equal() and related functions work better by
generating a better toString() from the expected, actual, and operator
values passed to fail(). Unfortunately, this was accomplished by putting
the generated message into the error's `name` property. When you passed
in a custom error message, the error would put the custom error into
`name` *and* `message`, resulting in helpful string representations like
"AssertionError: Oh no: Oh no".

This commit resolves that issue by storing the generated message in the
`message` property while leaving the error's name alone and adding
a regression test so that this doesn't pop back up later.

Closes #5292.

A new String was being created and returned, but was not sent through
the scope.Close(), which caused it to be cleaned up before being
returned.

I broke dgram.Socket#bind(port, cb) almost a year ago in 332fea5a but
it wasn't until today that someone complained and none of the tests
caught it because they all either specify the address or omit the
callback.

Anyway, now it works again and does what you expect: it binds the
socket to the "any" address ("0.0.0.0" for IPv4 and "::" for IPv6.)

process.stdout isn't fully initialized yet by the time the test starts
when invoked with `python tools/test.py`. Use process.stdin instead and
force initialization with process.stdin.resume().

The current example shows the behavior of v0.8. In v0.10 arguments
to path.join() must be strings; otherwise, an exception is thrown.

Fix a NULL pointer dereference in src/handle_wrap.cc which is really a
use-after-close bug.

The test checks that unref() after close() works on process.stdout but
this bug affects everything that derives from HandleWrap. I discovered
it because child processes would sometimes quit for no reason (that is,
no reason until I turned on core dumps.)

When LD_LIBRARY_PATH is overriden for custom builds we need to preserve
it for child processes. To be sure we preserve whole environment of
parent process and just add TEST_INIT variable to it.

When LD_LIBRARY_PATH is overriden for custom builds we need to preserve
it for forked process. There are possibly other environment variables
that could cause test failures so we preserve whole environment of
parent process.

Windows doesn't have MAXHOSTNAMELEN. Introduced in afbaddec.

Fix a (rather academic) buffer overflow. MAXHOSTNAMELEN is 256 on most
platforms, which means the buffer wasn't big enough to hold the
trailing nul byte on a system with a maximum length hostname.

* Fix a buffer overflow that happens iff strlen(info.sysname) > 255.
* Check the return value of uname().

Fix #5272

The consumption of a readable stream is a dance with 3 partners.

1. The specific stream Author (A)
2. The Stream Base class (B), and
3. The Consumer of the stream (C)

When B calls the _read() method that A implements, it sets a 'reading'
flag, so that parallel calls to _read() can be avoided.  When A calls
stream.push(), B knows that it's safe to start calling _read() again.

If the consumer C is some kind of parser that wants in some cases to
pass the source stream off to some other party, but not before "putting
back" some bit of previously consumed data (as in the case of Node's
websocket http upgrade implementation).  So, stream.unshift() will
generally *never* be called by A, but *only* called by C.

Prior to this patch, stream.unshift() *also* unset the state.reading
flag, meaning that C could indicate the end of a read, and B would
dutifully fire off another _read() call to A.  This is inappropriate.
In the case of fs streams, and other variably-laggy streams that don't
tolerate overlapped _read() calls, this causes big problems.

Also, calling stream.shift() after the 'end' event did not raise any
kind of error, but would cause very strange behavior indeed.  Calling it
after the EOF chunk was seen, but before the 'end' event was fired would
also cause weird behavior, and could lead to data being lost, since it
would not emit another 'readable' event.

This change makes it so that:

1. stream.unshift() does *not* set state.reading = false
2. stream.unshift() is allowed up until the 'end' event.
3. unshifting onto a EOF-encountered and zero-length (but not yet
end-emitted) stream will defer the 'end' event until the new data is
consumed.
4. pushing onto a EOF-encountered stream is now an error.

So, if you read(), you have that single tick to safely unshift() data
back into the stream, even if the null chunk was pushed, and the length
was 0.

* uv: Upgrade to 0.10.4

* npm: Upgrade to 1.2.18

* v8: Avoid excessive memory growth in JSON.parse (Fedor Indutny)

* child_process, cluster: fix O(n*m) scan of cmd string (Ben Noordhuis)

* net: fix socket.bytesWritten Buffers support (Fedor Indutny)

* buffer: fix offset checks (Łukasz Walukiewicz)

* stream: call write cb before finish event (isaacs)

* http: Support write(data, 'hex') (isaacs)

* crypto: dh secret should be left-padded (Fedor Indutny)

* process: expose NODE_MODULE_VERSION in process.versions (Rod Vagg)

* crypto: fix constructor call in crypto streams (Andreas Madsen)

* net: account for encoding in .byteLength (Fedor Indutny)

* net: fix buffer iteration in bytesWritten (Fedor Indutny)

* crypto: zero is not an error if writing 0 bytes (Fedor Indutny)

* tls: Re-enable check of CN-ID in cert verification (Tobias Müllerleile)

Don't scan the whole string for a "NODE_" substring, just check that
the string starts with the expected prefix.

This is a reprise of dbbfbe74 but this time for the child_process
module.

Don't scan the whole string for a "NODE_CLUSTER_" substring, just check
that the string starts with the expected prefix. The linear scan was
causing a noticeable (but unsurprising) slowdown on messages with a
large .cmd string property.

Call SetPointerInInternalField(0, NULL) rather than
SetInternalField(0, Undefined()).

Fixes the following spurious NULL pointer dereference in debug builds:

  #0  0x03ad2821 in v8::internal::FixedArrayBase::length ()
  #1  0x03ad1dfc in v8::internal::FixedArray::get ()
  #2  0x03ae05dd in v8::internal::Context::global_object ()
  #3  0x03b6b87d in v8::internal::Context::builtins ()
  #4  0x03ae1871 in v8::internal::Isolate::js_builtins_object ()
  #5  0x03ab4fab in v8::CallV8HeapFunction ()
  #6  0x03ab4d4a in v8::Value::Equals ()
  #7  0x03b4f38b in CheckEqualsHelper ()
  #8  0x03ac0f4b in v8::Object::SetInternalField ()
  #9  0x06a99ddd in node::ObjectWrap::~ObjectWrap ()
  #10 0x06a8b051 in node::Buffer::~Buffer ()
  #11 0x06a8afbb in node::Buffer::~Buffer ()
  #12 0x06a8af5e in node::Buffer::~Buffer ()
  #13 0x06a9e569 in node::ObjectWrap::WeakCallback ()

This change shouldn't have landed in the stable branch. It's a feature,
not a bug fix.

This reverts commit 58f93ffc.
This reverts commit 8c8ebe49.
This reverts commit ba0f7b80.
This reverts commit 21f3c5c3.

Buffer.byteLength() works only for string inputs. Thus, when connection
has pending Buffer to write, it should just use it's length instead of
throwing exception.