Issue #10141: updated new usages of AF_CAN to be in #ifdef AF_CAN rather than #ifdef HAVE_LINUX_CAN_H to allow compilation on older Linuxes.

proper CAN headers.

Now makes CPython build without warnings on OS X under Clang with
-Wno-unused-value -Wno-empty-body -Qunused-arguments
-Wno-deprecated-declarations.

Thanks to David Watson for taking an initial stab at a solution.

can now avoid a second syscall if the ioctl() function can be used, or if the
non-blocking flag of the socket is unchanged.

Patch by Claudiu Popa.

on other OSes!

numeric IP addresses.

already appears without #ifdef a couple lines above).

are now created non-inheritable; add functions os.get/set_inheritable(),
os.get/set_handle_inheritable() and socket.socket.get/set_inheritable().

error messages and comments.

CID 982369

of socket.socket objects now truncate the input buffer to INT_MAX bytes on
Windows to avoid an integer overflow.

(sendall() still send the whole buffer.)

AI_NUMERICSERV isn't defined on OSX 10.4.

multiprocessing.h: remove unused MIN and MAX macros

socket.gethostname() now decodes the hostname from the locale encoding, instead
of using the UTF-8 encoding in strict mode.

Without this patch socket.getaddrinfo crashed when called
with some unusual argument combinations.

namespace as string.

when applicable.

when it needs support from timemodule (which is a .so on linux):
link in timemodule.c for the required functions.

time function on non-windows isn't quite simple.

 (WSAEWOULDBLOCK - A non-blocking socket operation could not be completed
 immediately)

as reported by Serhiy Storchaka and Matthew Barnett.

I've left a couple of them in: zlib (third-party lib), getaddrinfo.c
(doesn't include Python.h, and probably obsolete), _sre.c (legitimate
use for the re.LOCALE flag).

Thorne.

when result of PyInt_AsLong() or PyLong_AsLong() narrowed
to int without checks.

This is a backport of changesets 13e2e44db99d and 525407d89277.

when result of PyLong_AsLong() narrowed to int without checks.

This is a backport of changesets 13e2e44db99d and 525407d89277.

when result of PyLong_AsLong() narrowed to int without checks.