Jul
03

Compiling XFCE from source

xfce screenshot

Xfce is a really cool Desktop environment for Linux. Its really light on resources compared to Gnome and Kde, and just as pretty.

Installation

I tried doing an rpm install. I guess a tool like apt would’ve made it a lot easier. After downloading 23 rpms, I realized that I was missing a few files. They turned out to be headers with the .hdr extension. I found these files in the header directory, but had *no* idea what to do with them. But then I had also started a parallel download of the source files. And instead of going through help forums, I opted to do a source compile. This is my compiling order:

libxfce4util
libxfcegui4
libxfce4mcs
xfce-mcs-manager
dbh
xfce4-panel
gtk-xfce-engine
xfce4-systray
xfdesktop
xfce-mcs-plugins
xfce4-themes
xfce4-iconbox
xfce4-mixer
xfce4-toys
xfce4-trigger-launcher
xffm
xffm-icons
xfprint
xfwm4
xfwm4-themes

Note

ldconfig: To add the path /usr/local/lib to ldconfig, append it to /etc/ld.co.conf and then run ldconfig. (July 03, 2004)

Jun
29

Ooh what a pwiddy resume

No Comments »

I finally got around to updating my resume. I also converted it to LaTeX. For all you Latex people out there, here are a few good links:

Jun
26

Auto-tagging of TagBoards

25 Comments »

#!/usr/bin/perl
# AutoTagger-Perl v0.1a (June 26, 2004)
# Pravin [pravinp at gmail dot com]
# This snippet illustrates automatic tagging of
# http://www.tag-board.com tag boards
 
use HTTP::Request::Common;
use LWP::UserAgent;
 
# Enter your details here
my $myname = 'pravin';
my $myurl = 'http://pravin.insanitybegins.com';
my $mymessage = 'Test Message';
 
# Add taggy names to this list
my @taggylist = (
	'oh_its_dee',
	'me_reiya',
	'Vighy',
	'rrighton');
 
# Code Starts
$ua = LWP::UserAgent->new();
foreach (@taggylist)
{
	print '$_\\t';
	$ua->request(POST 'http://www.tag-board.com/add.tag',
		[name => $_,
		tagname => $myname,
		tagurl =>$myurl,
		message => $mymessage]);
	print 'done\\n';
}

Jun
11

Eric Dybsand

8 Comments »

Eric Dybsand at the Game Developer's Conference 2004

It’s funny how people affect your life without you knowing it. It’s only when their absence is felt that you realise what they meant to you. Eric Dybsand passed away on April 15, 2004. I learnt of it today. All I knew of him was from his articles that I’d occasionally come across. I admired him, but I hadn’t really interacted with him.

Eric was a freelance computer game AI consultant, one of the best in the field. But he was much more than that. Here’s what people think about him (from In Memory of Eric Dybsand) –

“Eric was the most humble man I ever met. He always went out of his way to help you out. I never saw him in a bad mood, even on a Monday morning.“

“He didn’t judge me on what I had done or not done in the past. He appreciated me for what he thought I COULD do. When he introduced me to people, he would talk about me in terms I felt I didn’t deserve. At one point, I told him he didn’t need to BS about me like that to people; that it was a little embarrassing for him to trump me up like that. He simply looked me in the eye and said, I don’t do that. If I tell it to people, that means I think it’s true. I began to realize that was the way he treated everyone. This is a rare gift in people that they can truly inspire people to believe in themselves.“

“That was the thing I’ll remember best about Eric – his ability to meet new people and instantly make them feel like they belong.“

“My only regret for Eric is that he was such a modest person. I fear that too many people in this industry will never realize that he is gone, not because his contributions won’t be missed, but because he was always very reluctant to take credit for many of the things he did. As a result many of the people’s lives he has affected over the years may not ever realize the effect he made.“

“My spouse, Neil Kirby, along with Steve Woodcock, has been presenting with Eric at CGDC for a long time. From hearing about the preparations for the roundtables, and then about the presentations themselves, I had a very favorable impression of Eric. Neil usually returns from the conference on a high, in no small part due to the fun he has with Eric and Steve. Yet a few years ago, Neil returned a bit subdued. Eric had taken him aside and told him about his health problems. A heart transplant would solve most of the problems, but Eric wouldn’t even apply to be on the waiting list. He had no children, no spouse, no one dependent on him, so he felt that he shouldn’t take a heart from someone who needed it more than he did. That selfless act still amazes me.

The Biblical psalmist begs, ‘Create in me a clean heart, O Lord.’ Eric may have needed better cardiac muscles, better blood vessels, but there are few hearts cleaner and better.“

Eric Dybsand, here’s a salute from me! May you continue to inspire AI developers around the world, not just to be better programmers, but better people.

Jul
09

.plan

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My .plan file on everest:

   _       _
  ( ).---.( )            ~!@#$%^&*()~!@#$%^&*()~!@#$%^&*()
  ./.="'"=.\.
  |=.     .=|                     pravinparatey
  |_  0 0  _|                  tHe InSaNiTy BeGiNs
 .`  .---.  '.
 :   `---'   :           ~!@#$%^&*()~!@#$%^&*()~!@#$%^&*()
 `._ '---' _.'
   _:-----:._
  /={     }=_\
 /_.{     }-_=\
 |=|{     }=|-|
 |=|{     }-|=|
  \|{     }_|/
   |{     } |
   |{     }=|
   |{     } =\
   |`.   .'=|`\
   |_=`|'`=_|`\`\    .'`.
 __|_=_|=___|  `\`\_/./`'
(((__(((_____)   `.__/



I will probably be at h2
----------------------------------------

Jul
01

Tilings Project

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This code generated certain tile patterns. It was a lab assignment for the graphics course.

// tiling.cpp - Project titled Tilings
// Pravin Paratey (July 01, 2003)
 
#include &lt;math.h&gt;
#include &lt;GL/gl.h&gt;
#include &lt;stdio.h&gt;
#include &lt;GL/glut.h&gt;
#include &lt;stdlib.h&gt;
#include &lt;time.h&gt;
 
#define CELL_WIDTH 20
#define CELL_HEIGHT 20
 
int choice=4;
const float PI=3.14;
 
void pattern1()
{
	float x,y,t;
 
	// __
	//  |
	glBegin(GL_LINE_STRIP);
	for(t=0;t&lt;=3.15;t+=0.05)
	{
		x = 2.0*cos(t);
		y = 2.0*sin(t);
		glVertex2f(x-1.0,y-1.0);
	}
	glEnd();
	// |_
	glBegin(GL_LINE_STRIP);
	for(t=0;t&lt;=3.15;t+=0.05)
	{
		x = 2.0*cos(t);
		y = 2.0*sin(t);
		glVertex2f(1.0-x,1.0-y);
	}
	glEnd();
 
	glBegin(GL_LINE_STRIP);
	for(t=PI/2;t&lt;=PI;t+=0.01)
	{
		x = 2.0*cos(t);
		y = 2.0*sin(t);
		glVertex2f(x+1.0,y-1.0);
	}
	glEnd();
 
	glBegin(GL_LINE_STRIP);
	for(t=3*PI/2;t&lt;=2*PI;t+=0.01)
	{
		x = 2.0*cos(t);
		y = 2.0*sin(t);
		glVertex2f(x-1.0,y+1.0);
	}
	glEnd();
}
 
void pattern2(int i, int j)
{
	// This calculates which tile to put
	if(i % 2 != 0)
		j++;
	if (j % 2 == 0)
	{
		glBegin(GL_LINES);
		glVertex2f(-1.0,1.0);
		glVertex2f(0.0,0.5);
		glVertex2f(0.0,0.5);
		glVertex2f(1.0,1.0);
		glVertex2f(0.0,0.5);
		glVertex2f(0.0,-0.5);
		glVertex2f(0.0,-0.5);
		glVertex2f(-1.0,-1.0);
		glVertex2f(0.0,-0.5);
		glVertex2f(1.0,-1.0);
		glEnd();
	}
	else
	{
		glBegin(GL_LINES);
		glVertex2f(-1.0,1.0);
		glVertex2f(-0.5,0.0);
		glVertex2f(-0.5,0.0);
		glVertex2f(-1.0,-1.0);
		glVertex2f(-0.5,0.0);
		glVertex2f(0.5,0.0);
		glVertex2f(0.5,0.0);
		glVertex2f(1.0,1.0);
		glVertex2f(0.5,0.0);
		glVertex2f(1.0,-1.0);
		glEnd();
	}
}
 
void custom()
{
	int r;
	float x,y,t;
 
	r = 1+(int)(6.0*rand()/(RAND_MAX+1.0));
 
	//r=4;
/*
	if (r == 1)
	{
		// T1
		glBegin(GL_LINES);
		glVertex2f(-1.0,1.0);
		glVertex2f(-0.5,-0.5);
		glVertex2f(-0.5,-0.5);
		glVertex2f(-1.0,-1.0);
		glVertex2f(-0.5,-0.5);
		glVertex2f(1.0,-1.0);
		glVertex2f(-1.0,1.0);
		glVertex2f(0.5,0.5);
		glVertex2f(0.5,0.5);
		glVertex2f(1.0,1.0);
		glVertex2f(0.5,0.5);
		glVertex2f(1.0,-1.0);
		glEnd();
	}
	else if (r == 2)
	{
		//T2
		glBegin(GL_LINES);
		glVertex2f(-1.0,1.0);
		glVertex2f(-0.5,0.5);
		glVertex2f(-0.5,0.5);
		glVertex2f(-0.5,-0.5);
		glVertex2f(-0.5,-0.5);
		glVertex2f(-1.0,-1.0);
		glVertex2f(-0.5,-0.5);
		glVertex2f(0.5,-0.5);
		glVertex2f(0.5,-0.5);
		glVertex2f(1.0,-1.0);
		glVertex2f(0.5,-0.5);
		glVertex2f(0.5,0.5);
		glVertex2f(0.5,0.5);
		glVertex2f(1.0,1.0);
		glVertex2f(0.5,0.5);
		glVertex2f(-0.5,0.5);
		glEnd();
	}
	else if (r == 3)
	{
		//T3
		glBegin(GL_LINES);
		glVertex2f(-1.0,1.0);
		glVertex2f(0.5,0.5);
		glVertex2f(0.5,0.5);
		glVertex2f(0.5,-0.5);
		glVertex2f(0.5,-0.5);
		glVertex2f(-1.0,-1.0);
		glVertex2f(1.0,1.0);
		glVertex2f(-0.5,0.5);
		glVertex2f(-0.5,0.5);
		glVertex2f(-0.5,-0.5);
		glVertex2f(-0.5,-0.5);
		glVertex2f(1.0,-1.0);
		glEnd();
	}
	else if (r == 4)
	{
		//T4
		glBegin(GL_LINES);
		glVertex2f(-1.0,1.0);
		glVertex2f(-0.5,-0.5);
		glVertex2f(0.5,0.5);
		glVertex2f(1.0,-1.0);
		glVertex2f(-1.0,-1.0);
		glVertex2f(1.0,1.0);
		glEnd();
	}
*/
	if(r == 1)
	{
		glBegin(GL_LINE_STRIP);
		glVertex2f(-1.0,0.0);
		glVertex2f(-0.5,0.0);
		glVertex2f(-0.5,0.5);
		glVertex2f(0.0,0.5);
		glVertex2f(0.0,1.0);
		glEnd();
		glBegin(GL_LINE_STRIP);
		glVertex2f(0.0,-1.0);
		glVertex2f(0.0,-0.5);
		glVertex2f(0.5,-0.5);
		glVertex2f(0.5,0.0);
		glVertex2f(1.0,0.0);
		glEnd();
	}
	else if(r == 2)
	{
		glBegin(GL_LINES);
		glVertex2f(-1.0,0.0);
		glVertex2f(0.0,1.0);
		glEnd();
		glBegin(GL_LINES);
		glVertex2f(0.0,-1.0);
		glVertex2f(1.0,0.0);
		glEnd();
	}
	else if(r == 3)
	{
		glBegin(GL_LINE_STRIP);
		for(t=PI/2;t&lt;=PI;t+=0.01)
		{
			x = cos(t);
			y = sin(t);
			glVertex2f(x+1.0,y-1.0);
		}
		glEnd();
 
		glBegin(GL_LINE_STRIP);
		for(t=3*PI/2;t&lt;=2*PI;t+=0.01)
		{
			x = cos(t);
			y = sin(t);
			glVertex2f(x-1.0,y+1.0);
		}
		glEnd();
	}
	else if(r == 4)
	{
		glBegin(GL_LINE_STRIP);
		glVertex2f(-1.0,0.0);
		glVertex2f(-0.5,0.0);
		glVertex2f(-0.5,-0.5);
		glVertex2f(0.0,-0.5);
		glVertex2f(0.0,-1.0);
		glEnd();
		glBegin(GL_LINE_STRIP);
		glVertex2f(0.0,1.0);
		glVertex2f(0.0,0.5);
		glVertex2f(0.5,0.5);
		glVertex2f(0.5,0.0);
		glVertex2f(1.0,0.0);
		glEnd();
	}
	else if(r == 5)
	{
		glBegin(GL_LINES);
		glVertex2f(-1.0,0.0);
		glVertex2f(0.0,-1.0);
		glEnd();
		glBegin(GL_LINES);
		glVertex2f(1.0,0.0);
		glVertex2f(0.0,1.0);
		glEnd();
	}
	else
	{
		glBegin(GL_LINE_STRIP);
		for(t=0;t&lt;=3.15;t+=0.05)
		{
			x = cos(t);
			y = sin(t);
			glVertex2f(x-1.0,y-1.0);
		}
		glEnd();
 
		// |_
		glBegin(GL_LINE_STRIP);
		for(t=0;t&lt;=3.15;t+=0.05)
		{
			x = cos(t);
			y = sin(t);
			glVertex2f(1.0-x,1.0-y);
		}
		glEnd();
	}
}
 
void truchet()
{
	int r;
	float x,y,t;
 
	// Randomly select one truchet to draw
	r = 1+(int)(2.0*rand()/(RAND_MAX+1.0));
 
	if(r == 1)
	{
		// __
		//  |
		glBegin(GL_LINE_STRIP);
		for(t=0;t&lt;=3.15;t+=0.05)
		{
			x = cos(t);
			y = sin(t);
			glVertex2f(x-1.0,y-1.0);
		}
		glEnd();
 
		// |_
		glBegin(GL_LINE_STRIP);
		for(t=0;t&lt;=3.15;t+=0.05)
		{
			x = cos(t);
			y = sin(t);
			glVertex2f(1.0-x,1.0-y);
		}
		glEnd();
	}
	else
	{
		glBegin(GL_LINE_STRIP);
		for(t=PI/2;t&lt;=PI;t+=0.01)
		{
			x = cos(t);
			y = sin(t);
			glVertex2f(x+1.0,y-1.0);
		}
		glEnd();
 
		glBegin(GL_LINE_STRIP);
		for(t=3*PI/2;t&lt;=2*PI;t+=0.01)
		{
			x = cos(t);
			y = sin(t);
			glVertex2f(x-1.0,y+1.0);
		}
		glEnd();
	}
}
 
void myDraw()
{
	float x, y;
	float t;
 
	glClear(GL_COLOR_BUFFER_BIT);
	//glViewport(0,0,100,100);
	glColor3f(0.0,0.0,1.0);
 
 
	for(int i=0;i&lt;glutGet(GLUT_WINDOW_WIDTH)+CELL_WIDTH;i+=CELL_WIDTH)
		for(int j=0;j&lt;glutGet(GLUT_WINDOW_HEIGHT)+CELL_HEIGHT;j+=CELL_HEIGHT)
		{
			glViewport(i,j,CELL_WIDTH,CELL_HEIGHT);
			if(choice == 1)
				pattern1();
			else if(choice == 2)
				pattern2(i/CELL_WIDTH,j/CELL_HEIGHT); //Passing co-ords
			else if (choice == 3)
				truchet();
			else if (choice == 4)
				custom();
		}
	glFlush();
}
 
void GetParams()
{
	printf("\nTilings\nBy Pravin Paratey[July 10, 2003]");
	printf("\n[1] Pattern 1 [Circles] (one motif repeated)");
	printf("\n[2] Pattern 2 [Cairo Tiles] (2 motifs placed alternately)");
	printf("\n[3] Truchet (2 motifs chosen randomly)");
	printf("\n[4] Custom Pattern (6 motifs chosen randomly)");
	printf("\nEnter Choice: ");
	scanf("%i",&choice);
}
 
 
int main(int argc, char *argv[])
{
 
	GetParams();
 
	// Initialise random seed
	srand(time(NULL));
	// Glut initializations
	glutInit(&argc, argv);
	glutInitDisplayMode(GLUT_SINGLE | GLUT_RGB);
	glutInitWindowSize(400,400);
	glutInitWindowPosition(100,100);
	glutCreateWindow("Tilings - Pravin Paratey");
 
	glClearColor(1.0,1.0,1.0,0.5);
	glutDisplayFunc(myDraw);
	glutMainLoop();
	return 0;
}

May
16

Yahoo Messenger Packet Builder

No Comments »

[Written on August 19, 2006]

Back then, I used to go by the pseudonym: LightBade. I went by other names too. Apparently it was ‘cool’ back then. Don’t know what I was thinking :P

This app is based on YMSG protocol version 9. It is a packet sniffer that displayed the ascii and hex values side by side. A YMSG packet analyzer, a more ambitious plan was to enable changing packets as they are sent to see how Yahoo server responds and look for vulnerabilities. Like 99% of all my projects, I lost interest and veered off in another direction.

[Code]

Apr
22

Sherry

No Comments »

Sherry is a P2P file sharing application. This was a networks lab project done by Nitin and me. [Powerpoint] [Code]

Mar
20

FIFO Page Replacement Algo

No Comments »

/* Lab7 - To implement FIFO page replacement algo
 * Pravin Paratey (pravin[AT]iitb.ac.in)
 */
 
#include <stdio.h>
 
 
int FrameBuffer[100][2];
 
int main()
{
	FILE *fp;
	int numFrames;
	int pageHits=0;
	int count=0;
	int pageNum;
	int purgeMem;
	int i;
	int eof;
	int leastUsed=0;
	int leastIndex=0;
 
	fp = fopen("lru.in","r");
	fscanf(fp, "%i", &numFrames);
 
	while(1)
	{
		eof = fscanf(fp, "%i", &pageNum);
		if (eof == -1)
			break;
 
		printf("[%i] Requested\n",pageNum);
		purgeMem=1;
		for(i=0;i<numFrames;i++)
			if (FrameBuffer[i][0] == pageNum)
			{
				pageHits++;
				FrameBuffer[i][1]++;
				purgeMem=0;
				printf("[%i] Found\n",pageNum);
			}
		if (purgeMem)
		{
			leastUsed=100;
			leastIndex=0;
			for(i=0;i<numFrames;i++)
			{
				if(FrameBuffer[i][1] < leastUsed)
				{
					leastUsed=FrameBuffer[i][1];
					leastIndex=i;
				}
			}
			printf("[%i] Not Found ... added -%i- purged\n",pageNum,FrameBuffer[leastIndex][0]);
			FrameBuffer[leastIndex][0] = pageNum;
			FrameBuffer[leastIndex][1] = 0;
		}
		count++;
 
	}
 
	printf("Total pages requested=%i\nPage Hits=%i\nHit Rate=%f",
			count, pageHits, (float)pageHits/(float)count);
	fclose(fp);
	return 0;
}

Mar
13

Perfunc

No Comments »

This is a flash animation I created for a graphics lab.

Readme.txt

Name: Pravin Paratey
Alias: perfunc
Honor Code:
I agree to the honour code -

"I will follow the honor code in future assignments
I pledge on my honour that I have not given or received any
unauthorized assistance on this assignment or any previous homework."

Other Info:
Please keep speaker on. Sounds are present.

Compiling XFCE from source

Installation

Note

Ooh what a pwiddy resume

Auto-tagging of TagBoards

Eric Dybsand

.plan

Tilings Project

Yahoo Messenger Packet Builder

Sherry

FIFO Page Replacement Algo

Perfunc

Readme.txt

The assignment

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