Category Archives: Coding

All kinds of Programming.

Create excel files in php – simple and easy way

By | September 29, 2008

Database applications written in php often need to export data for reporting purpose. A popular export format is excel. Excel is a spreadsheet that lays out data in a grid format. Excel itself is a microsoft proprietory format. There are many libraries available for php like Spreadsheet_Excel_Writer pear package etc that can do the job…. Read More »

Read write and save configurations to a file in java

By | April 2, 2008

Configuration files are used in applications to store settings, user preferences and other configuration parameters of an application so that. When configurations are changed from within the application these need to be saved so that next time the application starts with these new settings. In Java reading and writing to a configuration is pretty simple… Read More »

Raw socket programming on windows with Winpcap

By | January 13, 2008

Raw sockets with winpcap A previous post explains how to send on windows xp. However the winsock api has limited raw socket support in windows versions greater than windows xp+sp1. Therefore winpcap has to be used to send raw packets on higher windows versions. Winpcap is a packet driver useful for packet capturing and sending… Read More »

Raw socket programming on windows with winsock

By | March 18, 2007

Raw sockets using winsock Raw sockets or “Raw Packets”, give you the facility to access the entire contents of a packet or datagram, both for reading and writing purpose. In other words, you can fabricate a whole packet according to your likes and dislikes. For example, a TCP packet would contain an IP header, a… Read More »