[PATCH]Add SO_ORIGINAL_DST support and SOL_IP constant to socket_get_options()

This patch adds some quite useful functionalities to socket_get_options()
function.

1st of all, it adds the constant SOL_IP to indicate IP layer in the level
parameter.

2nd, and the most important, it adds the SO_ORIGINAL_DST constant for the
optname parameter, and adds this functionality of c's getsockopt()

It applies and compiles cleanly in php-5.0.2 sources under linux 2.4.26
(slackware linux current). I think it will apply cleanly also into cvs.

Things NOT tested: I don't have solaris, bsd, etc. to test it. If someone can
test it and report necessary changes, or errors so I can make the changes, It
will be appreciated.

Regards
Leo

--

Leonardo Pedretti
Axon Sistemas
Líder de Equipo Proyecto Basalto

Help needed on this details bob is commenting about the patch (i don't have
much experience on the configure scripts).
It would be interesting that someone reports the existence/equivalence of the
SO_ORIGINAL_DST option on some other systems.

Regards
Leo

This patch adds some quite useful functionalities to socket_get_options()
function.
...
Things NOT tested: I don't have solaris, bsd, etc. to test it. If someone
can test it and report necessary changes, or errors so I can make the
changes, It will be appreciated.

At minimum, I would imagine that

a) changing the autoconf script so that it properly detects if the
underlying operating system has support for the capability in question
is required;

b) adding #ifdef/#endif pairs based on the autoconf rewrite to include
the proper files on a per-architecture basis.

If you only have Linux, then doing (a) and (b) for the Linux-specific
case would get your patch a lot farther. If this patch is applied
as-is to the PHP sources and then compiled on anything except linux,
it will break because of #include <linux/...> (at minimum).

Not that I'm authoritative about PHP adoption; but having submitted
patches before to a variety of projects I've found you're likely
to get farther if you create your patch so that it doesn't break
anyone else's system.

-Bob

--

Leonardo Pedretti
Axon Sistemas
Líder de Equipo Proyecto Basalto