rmccullagh’s gists

rmccullagh / parse.php

Created April 28, 2015 01:27

	<?php
	$str = "Sending: 6011 1234 4321 1234:12/2016:543.21:John Doe
	Received: Mon Apr 27 18:07:22 CDT 2015: Discover: 6011 1234 4321 1234 is valid: authorization code: 472080 for $543.21";

	$a = preg_split("/\n/", $str);
	array_shift($a);
	$c = preg_match_all('/authorization\scode:\s[0-9]+/', $a[0], $matches);
	$d = preg_split('/\n/', $matches[0][0]);
	$e = explode(" ", $d[0]);
	var_dump($e[2]);

rmccullagh / http.c

Created June 5, 2015 06:26

Hello HTTP server, that only implements GET|HEAD requests

	/*
	* Copyright (c) 2015 Ryan McCullagh <me@ryanmccullagh.com>
	*
	* This program is free software: you can redistribute it and/or modify
	* it under the terms of the GNU General Public License as published by
	* the Free Software Foundation, either version 3 of the License, or
	* (at your option) any later version.
	*
	* This program is distributed in the hope that it will be useful,
	* but WITHOUT ANY WARRANTY; without even the implied warranty of

rmccullagh / readimage.c

Created July 30, 2015 18:28

	#include <stdlib.h>
	#include <stdio.h>
	#include <sys/stat.h>

	/*
	* memory allocation sub routine that DOES NOT fail
	*/
	void* tryAllocate()
	{
	void* buffer;

rmccullagh / utf8_encode.c

Created August 20, 2015 23:25

	/*
	* ascii whitespace:
	* U+0009
	* U+000A
	* U+000C
	* U+000D
	* U+0020
	*/
	/*
	* code point, four-to-six hex chars

rmccullagh / debug_log.c

Last active February 27, 2019 12:00

	static void __debug(const char* fname, const char* format, ...)
	{
	fprintf(stderr, "DEBUG: %s", fname);
	va_list args;
	va_start (args, format);
	vfprintf (stderr, format, args);
	va_end (args);
	}

	#define debug(format, ...) __debug(__func__, format, __VA_ARGS__)

rmccullagh / eat.street.c

Last active November 25, 2015 21:47

	/**
	*
	* Copyright (c) 2015 Ryan McCullagh <me@ryanmccullagh.com>
	*
	* This program is free software: you can redistribute it and/or modify
	* it under the terms of the GNU General Public License as published by
	* the Free Software Foundation, either version 3 of the License, or
	* (at your option) any later version.
	*
	* This program is distributed in the hope that it will be useful,

rmccullagh / write_bytes_to_stream.c

Last active December 11, 2015 21:56

	/*
	* Copyright (c) 2015 Ryan McCullagh <me@ryanmccullagh.com>
	*
	* This program is free software: you can redistribute it and/or modify
	* it under the terms of the GNU General Public License as published by
	* the Free Software Foundation, either version 3 of the License, or
	* (at your option) any later version.
	*
	* This program is distributed in the hope that it will be useful,
	* but WITHOUT ANY WARRANTY; without even the implied warranty of

rmccullagh / write_bytes_to_stream.h

Created December 11, 2015 21:55

	/*
	* Copyright (c) 2015 Ryan McCullagh <me@ryanmccullagh.com>
	*
	* This program is free software: you can redistribute it and/or modify
	* it under the terms of the GNU General Public License as published by
	* the Free Software Foundation, either version 3 of the License, or
	* (at your option) any later version.
	*
	* This program is distributed in the hope that it will be useful,
	* but WITHOUT ANY WARRANTY; without even the implied warranty of

rmccullagh / strfind.c

Created April 16, 2016 05:01

find the starting position of a string in a string

	/*
	* Copyright (c) 2016 Ryan McCullagh <me@ryanmccullagh.com>
	*
	* This program is free software: you can redistribute it and/or modify
	* it under the terms of the GNU General Public License as published by
	* the Free Software Foundation, either version 3 of the License, or
	* (at your option) any later version.
	*
	* This program is distributed in the hope that it will be useful,
	* but WITHOUT ANY WARRANTY; without even the implied warranty of

rmccullagh / strfind2.c

Created April 21, 2016 14:42

	/*
	* Copyright (c) 2016 Ryan McCullagh <me@ryanmccullagh.com>
	*
	* This program is free software: you can redistribute it and/or modify
	* it under the terms of the GNU General Public License as published by
	* the Free Software Foundation, either version 3 of the License, or
	* (at your option) any later version.
	*
	* This program is distributed in the hope that it will be useful,
	* but WITHOUT ANY WARRANTY; without even the implied warranty of

Ryan McCullagh rmccullagh