Category Archives: Coding

All kinds of Programming.

Get ip address from hostname in C with Linux sockets

By | July 31, 2020

Socket applications often need to convert hostnames like google.com to their corresponding ip address. This is done through dns requests. The socket api in linux provides functions like gethostbyname and getaddrinfo that can be used to perform the dns requests and get the ip address. 1. gethostbyname The first method uses the traditional gethostbyname function… Read More »

Convert simplexml object to array in php

By | December 6, 2011

The simplexml extension of php is quite simple and easy to use when it comes to parsing “well-formatted” xml files. Well formatted means , xml that is not broken or does not have too many errors. One of the most handy functions of this extension is simplexml_load_string. Here is an example : <?php $xml =… Read More »

Php get zip error message from error number

By | November 24, 2011

Php functions like zip_open return an error number if they fail. To get the corresponding error message from the error number , use the following function. function zip_error_message($errno) { // using constant name as a string to make this function PHP4 compatible $zipFileFunctionsErrors = array( 'ZIPARCHIVE::ER_MULTIDISK' => 'Multi-disk zip archives not supported.', 'ZIPARCHIVE::ER_RENAME' => 'Renaming… Read More »

Get http request headers in php

By | November 22, 2011

When a browser makes a request to a php script, the browser sends some http headers which can look like this : Host: localhost Connection: keep-alive User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/535.2 (KHTML, like Gecko) Chrome/15.0.874.121 Safari/535.2 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Encoding: gzip,deflate,sdch Accept-Language: en-US,en;q=0.8 Accept-Charset: UTF-8,*;q=0.5 Cookie: username=admin; password=21232ffc3; PHPSESSID=o5m4e2td1m66c4pkjdag9vs0u2 The php script under request ,… Read More »

PHP get adsense earnings and reports

By | November 9, 2011

In this article we are going to login into Google Adsense and retrieve earnings. Google Adsense now has a new interface and so needs a different kind of coding. In this example we shall fetch “yesterday’s” earnings sitewise. Create a Report to be fetched : First open the sitewise report in the Performance Tab in… Read More »

Quick Tip: Installing Ruby Gems in the user’s Home Directory

By | April 19, 2016

Note: The Operating System in use is Ubuntu Linux (11.04) My Gem Environment – $ gem env RubyGems Environment: – RUBYGEMS VERSION: 1.8.11 – RUBY VERSION: 1.9.2 (2010-08-18 patchlevel 0) [x86_64-linux] – INSTALLATION DIRECTORY: /usr/local/lib/ruby/gems/1.9.1 – RUBY EXECUTABLE: /usr/local/bin/ruby – EXECUTABLE DIRECTORY: /usr/local/bin – RUBYGEMS PLATFORMS: – ruby – x86_64-linux – GEM PATHS: – /usr/local/lib/ruby/gems/1.9.1… Read More »

How to Code a TCP Connect Port Scanner in PHP

By | August 11, 2020

A port scanner is a program designed to probe a server or host for open ports. Looking at open ports, one can tell what services might be running on the remote server. We earlier made a TCP Connect port scanner in C here – https://www.binarytides.com/tcp-connect-port-scanner-code-c-winsock/ and here – https://www.binarytides.com/tcp-connect-port-scanner-c-code-linux-sockets/ Now we shall try making the… Read More »