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socket.bind also tries all addresses returned by getaddrinfo.

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This commit is contained in:
Diego Nehab 2012-04-23 01:40:31 +08:00
parent 966642f76a
commit 1acf8188cd
2 changed files with 25 additions and 14 deletions
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36
src/socket.lua
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@ -19,8 +19,8 @@ function connect(address, port, laddress, lport)
if address == "*" then address = "0.0.0.0" end
local addrinfo, err = socket.dns.getaddrinfo(address);
if not addrinfo then return nil, err end
local err = "no info on address"
local sock, res
err = "no info on address"
for i, alt in base.ipairs(addrinfo) do
if alt.family == "inet" then
sock, err = socket.tcp()
@ -49,19 +49,29 @@ function bind(host, port, backlog)
if host == "*" then host = "0.0.0.0" end
local addrinfo, err = socket.dns.getaddrinfo(host);
if not addrinfo then return nil, err end
local sock, err;
if addrinfo[1].family == "inet" then
sock, err = socket.tcp()
else
sock, err = socket.tcp6()
local sock, res
err = "no info on address"
for i, alt in base.ipairs(addrinfo) do
if alt.family == "inet" then
sock, err = socket.tcp()
else
sock, err = socket.tcp6()
end
if not sock then return nil, err end
sock:setoption("reuseaddr", true)
res, err = sock:bind(alt.addr, port)
if not res then
sock:close()
else
res, err = sock:listen(backlog)
if not res then
sock:close()
else
return sock
end
end
end
if not sock then return nil, err end
sock:setoption("reuseaddr", true)
local res, err = sock:bind(host, port)
if not res then return nil, err end
res, err = sock:listen(backlog)
if not res then return nil, err end
return sock
return nil, err
end
try = newtry()