From 2ab42c8dbf95ea250e4dd16b21b12c2b6dddb5b1 Mon Sep 17 00:00:00 2001 From: Matthew Wild Date: Fri, 17 May 2013 14:52:52 +0100 Subject: util.ip: Automatically determine protocol of IP address if none specified. Return error if invalid. [Backported from 0.10] --- util/ip.lua | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) (limited to 'util/ip.lua') diff --git a/util/ip.lua b/util/ip.lua index 856bf034..226432cc 100644 --- a/util/ip.lua +++ b/util/ip.lua @@ -12,7 +12,15 @@ local ip_mt = { __index = function (ip, key) return (ip_methods[key])(ip); end, local hex2bits = { ["0"] = "0000", ["1"] = "0001", ["2"] = "0010", ["3"] = "0011", ["4"] = "0100", ["5"] = "0101", ["6"] = "0110", ["7"] = "0111", ["8"] = "1000", ["9"] = "1001", ["A"] = "1010", ["B"] = "1011", ["C"] = "1100", ["D"] = "1101", ["E"] = "1110", ["F"] = "1111" }; local function new_ip(ipStr, proto) - if proto ~= "IPv4" and proto ~= "IPv6" then + if not proto then + local sep = ipStr:match("^%x+(.)"); + if sep == ":" then proto = "IPv6" + elseif sep == "." then proto = "IPv4" + end + if not proto then + return nil, "invalid address"; + end + elseif proto ~= "IPv4" and proto ~= "IPv6" then return nil, "invalid protocol"; end if proto == "IPv6" and ipStr:find('.', 1, true) then -- cgit v1.2.3