ryancdotorg

// SipHash-2-4 in x86_64 assembly, hand optimized for size (183 bytes)
// Written by Ryan Castellucci
// Disclaimer: Don't use this.

        .global siphash
        .global end_siphash

        .text

// uint64_t siphash(const void *src, uint32_t src_sz, const uint8_t key[16])

ryancdotorg

--- old/src/perl.c      2017-03-04 21:21:35.000000000 +0000
+++ new/src/perl.c      2019-03-09 23:42:10.546624662 +0000
@@ -160,6 +160,23 @@
   uschar *str;
   int items;
 
+  if (name[0] == '_')
+    {
+    *errstrp = US"forbidden function name";
+    return 0;

ryancdotorg

--- old/src/readconf.c  2019-03-09 20:41:17.000000000 +0000
+++ new/src/readconf.c  2019-03-13 07:44:59.855569375 +0000
@@ -152,6 +152,7 @@
   { "extra_local_interfaces",   opt_stringptr,   &extra_local_interfaces },
   { "extract_addresses_remove_arguments", opt_bool, &extract_addresses_remove_arguments },
   { "finduser_retries",         opt_int,         &finduser_retries },
+  { "forbid_run",               opt_bit | (RDON_RUN << 16), &expand_forbid },
   { "freeze_tell",              opt_stringptr,   &freeze_tell },
   { "gecos_name",               opt_stringptr,   &gecos_name },
   { "gecos_pattern",            opt_stringptr,   &gecos_pattern },

ryancdotorg

// a toy lz77 compressor that outputs printable ascii, by @ryancdotorg

var compress = function(I) {                                                                                                                                   
  var p = 0, // position in input
      o = "", // compressed output string
      D, D_MAX = 479, // distance
      L, L_MAX = 19, // length
      match; // best match for current position

  // encode a (distance,length) tuple

ryancdotorg

#!/usr/bin/env python

from zope.interface import implementer
from twisted.internet.interfaces import IHalfCloseableProtocol
from twisted.internet.protocol import Protocol

@implementer(IHalfCloseableProtocol)
class EximSocketProtocol(Protocol):
    # buffer received data
    def dataReceived(self, data):

ryancdotorg

#!/usr/bin/env python

# This script accepts salt,passphrases pairs on STDIN seperated by a tab.
# Specify the coin symbol and indexes to generate via command line args.
#
# Appears to work fine with Bitcoin, Litecoin and Ethereum, probably works
# with many other coins as well.
#
# Don't participate in Bitfi's pay-to-play Bounty - it's a sham.

ryancdotorg

#!/bin/sh
# brotlipng.sh by @ryancdotorg
pngcrush -q -force -m 1 -l 0 "$1" ".$1.tmp" && \
brotli -fj ".$1.tmp" -o "$1.br"

ryancdotorg

#!/usr/bin/env python

import sys
import hmac
import hashlib
import binascii

import scrypt
import pycoin
from pybitcointools import *

ryancdotorg

// paste to console on https://earn.com/history/ after scrolling down until no more entries appear

hist=[];
document.querySelectorAll(".tasks-results-card-content").forEach(function(e){
  var yearStr = " "+(new Date()).getFullYear();
  var dateStr = e.getElementsByClassName("task-results-response-status")[0]
                 .getElementsByTagName("div")[6].innerText.split(',')[0];
  dateStr += dateStr.indexOf(yearStr) > -1 ? "" : yearStr;
  hist.push(
    e.getElementsByClassName("head-stat")[0]

ryancdotorg

CPU X64

%macro check_bit 0             ; check whether bit rax
                               ; of the bloom filter is set
  mov   rdx, rax               ; copy hash
  shr   rax, byte 3            ; byte to check in rax
  movzx rax, byte [rdi+rax]    ; load byte to check from memory
  and   rdx, byte 7            ; mask off bit to check
  bt    rax, rdx               ; bit test against bloom filter
  jnc   bloom_miss             ; jump to return a 'miss' if bit isn't set