Pierre Chapuis catwell
Refer to RFC 2119 to interpret MUST, SHOULD and MAY.
catwell
/ wireguard-kernel-conf.sh
Created
May 28, 2017 09:33
Print kernel configuration that matters to WireGuard
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| #!/bin/sh | |
| p () { | |
| zcat /proc/config.gz | grep "$1=" | |
| } | |
| p CONFIG_NET | |
| p CONFIG_INET | |
| p CONFIG_NET_UDP_TUNNEL | |
| p CONFIG_NF_CONNTRACK |
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| --- Instance-based module template. | |
| -- @module example | |
| local methods = {} | |
| local MT = { __index = methods } | |
| local function new() | |
| local self = {} | |
| return setmetatable(self, MT) |
catwell
/ lua-android.diff
Created
November 5, 2016 11:57
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| diff --git a/src/lmathlib.c b/src/lmathlib.c | |
| index 4f2ec60..d87536d 100644 | |
| --- a/src/lmathlib.c | |
| +++ b/src/lmathlib.c | |
| @@ -183,7 +183,7 @@ static int math_log (lua_State *L) { | |
| res = l_mathop(log)(x); | |
| else { | |
| lua_Number base = luaL_checknumber(L, 2); | |
| -#if !defined(LUA_USE_C89) | |
| +#if defined(LUA_USE_LOG2) |
catwell
/ lua-devroom-2017.md
Created
August 29, 2016 07:14
Lua [1] is a lightweight multi-paradigm dynamic programming language, designed with embeddability and extensibility as its primary goals. It has a diverse range of uses across industries, including notaby video games, networking and machine learning.
The Lua community holds a yearly Workshop, which will take place mid-October
catwell
/ gist:f682314602039ad126b7cd58b40351c7
Created
April 17, 2016 09:20
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| > x = string.dump(function() end) | |
| > x = x:sub(1,3) .. "b" .. x:sub(5) -- break header | |
| > loadstring(x)() | |
| stdin:1: attempt to call a nil value | |
| stack traceback: | |
| stdin:1: in main chunk | |
| [C]: ? | |
| > assert(loadstring(x))() | |
| stdin:1: binary string: bad header in precompiled chunk | |
| stack traceback: |
catwell
/ gist:057a050e9c6f25b99a1236714ec2b978
Created
April 10, 2016 14:15
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| PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data. | |
| 64 bytes from 8.8.8.8: icmp_seq=1 ttl=45 time=75.0 ms | |
| 64 bytes from 8.8.8.8: icmp_seq=2 ttl=45 time=57.1 ms | |
| 64 bytes from 8.8.8.8: icmp_seq=4 ttl=45 time=41.5 ms | |
| 64 bytes from 8.8.8.8: icmp_seq=5 ttl=45 time=39.4 ms | |
| 64 bytes from 8.8.8.8: icmp_seq=6 ttl=45 time=42.9 ms | |
| 64 bytes from 8.8.8.8: icmp_seq=8 ttl=45 time=69.9 ms | |
| 64 bytes from 8.8.8.8: icmp_seq=9 ttl=45 time=49.6 ms | |
| 64 bytes from 8.8.8.8: icmp_seq=10 ttl=45 time=37.7 ms | |
| 64 bytes from 8.8.8.8: icmp_seq=12 ttl=45 time=40.0 ms |
catwell
/ day1.sh
Last active
December 7, 2015 08:15
Advent of Code (http://adventofcode.com/) in Bash and Lua.
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| c=0; n=1 | |
| for i in $(fold -b1 $1); do | |
| [ "$i" = "(" ] && c=$((c+1)) | |
| [ "$i" = ")" ] && c=$((c-1)) | |
| echo $c $n | |
| n=$((n+1)) | |
| done | |
| # sh day1.sh input.txt | tail -n1 | cut -d' ' -f1 | |
| # sh day1.sh input.txt | grep -e '-1 ' | head -n1 | cut -d' ' -f2 |
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| -- For use with https://github.com/fperrad/lua-MessagePack | |
| -- Usage: | |
| -- local mp = require "MessagePack" | |
| -- local MP = mp_magic(mp) | |
| -- mp.pack{ this_is_a_string = MP{binary = "this_is_a_binary"} } | |
| local mp_magic = function(mp) | |
| if mp.mpmagic then return mp.mpmagic end | |
| local mp_mt = {} | |
| local new = function(t) return setmetatable(t, mp_mt) end |