This is the c-ares code that used to live in the libuv source tree.
It is based on c-ares 1.9.0.

This commit reverts the following commits (in reverse chronological order):

  74d076ca errnoException must be done immediately
  ddb02b97 net: support Server.listen(Pipe)
  085a0987 cluster: do not use internal server API
  d1388751 net: lazy listen on handler

Commit d1388751 introduced a backwards incompatible change that broke the
simple/test-net-socket-timeout and simple/test-net-lazy-listen tests - it
defers listening on the target port until the `net.Server` instance has at
least one 'connection' event listener.

The other patches had to be reverted in order to revert d1388751.

Fixes #3832.

Modified net.isIP Ipv6 regex to allow for addresses ending in "::".
Added tests for new IPv6 matching reqex.

For backwards compatibility, fs.truncate(<number>) will proxy to
fs.ftruncate.

Fix #3805

Conflicts:

	doc/api/util.markdown

The destroy() method of fs.ReadStream and fs.WriteStream takes a callback.
It's a leftover from the node 0.1 days, undocumented and not part of the
streams API. Remove it.

1. The net changes add a stack frame to stdin errors.
2. The error line numbers were overly strict in many places.

This allow the server to be shared without the need to handle connection
from master

Conflicts:
	ChangeLog
	deps/uv/src/unix/sunos.c
	deps/uv/test/test-tcp-unexpected-read.c
	src/node_version.h

This fixes the problem that calling pause() on a socket would not
actually prevent 'data' events from being emitted. It also replaces
the existing test by a more elaborate one.

Ref: #3118

* node: tag Encode and friends NODE_EXTERN (Ben Noordhuis)

* fs: fix ReadStream / WriteStream missing callback (Gil Pedersen)

* fs: fix readFileSync("/proc/cpuinfo") regression (Ben Noordhuis)

* installer: don't assume bash is installed (Ben Noordhuis)

* Report errors properly from --eval and stdin (isaacs)

* assert: fix throws() throws an error without message property (koichik)

* cluster: fix libuv assert in net.listen() (Ben Noordhuis)

* build: always link sunos builds with libumem (Trent Mick)

* build: improve armv7 / hard-float detection (Adam Malcontenti-Wilson)

* https: Use host header as effective servername (isaacs)

* sunos: work around OS bug to prevent fs.watch() from spinning (Bryan Cantrill)

* linux: fix 'two watchers, one path' segfault (Ben Noordhuis)

* windows: fix memory leaks in many fs functions (Bert Belder)

* windows: don't allow directories to be opened for writing/appending (Bert Belder)

* windows: make fork() work even when not all stdio handles are valid (Bert Belder)

* windows: make unlink() not remove mount points, and improve performance (Bert Belder)

* build: Sign pkg installer for OS X (isaacs)

This makes the installer work on Mountain Lion.

The old installer was a JS script, which didn't work if node had been
cross-compiled for another architecture. Replace it with a python script.

Fixes #3807.

Shrinks the tarball by a few hundred kilobytes and fixes a broken symlinks
issue on Windows.

Fixes #3813.

Makes the symbols visible on Windows. They were already visible on Unices.

Fixes #3811.

The (undocumented) callback argument to .destroy() was not called if the
stream was no longer readable / writable.

Don't use positional reads. Not all proc files support pread(), especially on
older linux kernels.

Fixes #3808.

Use `/bin/sh` instead of `bash` when running the relocate.sh script.

Patch sent upstream: http://codereview.chromium.org/10829109/