mirror of
https://github.com/lunarmodules/luasocket.git
synced 2024-07-01 10:59:46 +02:00
51acb54760
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.
26 lines
641 B
Lua
Executable File
26 lines
641 B
Lua
Executable File
#!/usr/bin/lua
|
|
|
|
--[[
|
|
Show that luasocket returns an error message on zero-length UDP sends,
|
|
even though the send is valid, and in fact the UDP packet is sent
|
|
to the peer:
|
|
|
|
% sudo tcpdump -i lo -n
|
|
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
|
|
listening on lo, link-type EN10MB (Ethernet), capture size 65535 bytes
|
|
13:40:16.652808 IP 127.0.0.1.56573 > 127.0.0.1.5432: UDP, length 0
|
|
|
|
]]
|
|
|
|
require"socket"
|
|
|
|
s = assert(socket.udp())
|
|
r = assert(socket.udp())
|
|
assert(r:setsockname("*", 5432))
|
|
assert(s:setpeername("127.0.0.1", 5432))
|
|
|
|
ssz, emsg = s:send("")
|
|
|
|
print(ssz == 0 and "OK" or "FAIL",[[send:("")]], ssz, emsg)
|
|
|