Some systems like Mac OS X 10.5 (and lower) do not have EAI_OVERFLOW and
AI_NUMERICSERV defined.
These variables are used to avoid a potentially slow name resolution
for the hostname (which will always be an ip address)
and for service name (which will always be an actual port number).
The code might be slower, but it should still work.
Closes: #242
This results in unexpected behaviour if the socket has been `dup()`d, as O_NONBLOCK is shared.
Close is always 'blocking' anyway
See https://github.com/wahern/cqueues/issues/13 for an example use case
This avoid socket.lua duplicating the iteration over the results
of getaddrinfo(). Some problems with the C implementation not
initializing sockets or the luasocket family have also been fixed,
and error reporting made more robust.
Documented headers.lua
Update copyright date everywhere
Remove RCSID from files
Move version back to 2.1 rather than 2.1.1
Fixed url package to support ipv6 hosts
Changed "domain" to "family" in tcp and udp structures
Implemented getfamily methods
Conflicts in options.c were just due to independent small functions
being close to each other.
unix.c in mwild was broken, it wasn't using LUASOCKET_API.
serial.c needed luaL_reg renamed, and to use LUASOCKET_API.
makefile didn't respect standard DESTDIR and prefix makefile
variables, and didn't allow LUAV variable to select lua version to build
against.
I've tested the top-level install-both target builds and installs
against both lua5.1 and lua5.2, but not done further testing.
Conflicts:
README
config
gem/ltn012.tex
makefile
src/makefile
src/options.c
src/options.h
src/tcp.c
src/usocket.c
Looks like a historical bug. Its err argument is an error number, but
if it isn't using a custom error message for it, it just calls
strerror() with the errno global, effectively ignoring its argument
and returning a semi-random string.
Connect timeouts are implemented by waiting on the new socket
descriptor. When select() is used for this, it imposes an arbitrary
limit on the number of connections that can be made, usually 1024-3.
Using poll() removes this limit on the number of simultaneous TCP
connections can be made using luasocket. The previous default
implementation using select() is available by defining SOCKET_SELECT.
Note that using socket.select() always uses select(), so it isn't
possible to wait on an arbitrary number of connections at once.
A zero-length send is invalid with TCP, but well defined with UDP.
udp:send"" was returning (nil,"refused"), indicating that it failed when
the packet was actually sent. The test script reproduces the bug, and
includes a tcpdump of the zero length packet being sent.
