Open Source & Freedom

nasm in Mac OS X

2009-08-07T13:24:00.003+07:00

I was trying to compile a simple assembly program in Mac OS X (Leopard).

I was getting an error message

ld: could not find entry point "_start" (perhaps missing crt1.o) for inferred architecture i386

A simple asm program for FreeBSD and MacOS
(we have to use the stack for system call, from http://asm.sourceforge.net//howto/Assembly-HOWTO.rtf)

section     .text
 global _start                       ;must be declared for linker (ld)

_syscall:           
     int     0x80            ;system call
     ret

_start:                         ;tell linker entry point

     push    dword len       ;message length
     push    dword msg       ;message to write
     push    dword 1         ;file descriptor (stdout)
     mov     eax,0x4         ;system call number (sys_write)
     call    _syscall        ;call kernel

                             ;the alternate way to call kernel:
                             ;push   eax
                             ;call   7:0

     add     esp,12          ;clean stack (3 arguments * 4)

     push    dword 0         ;exit code
     mov     eax,0x1         ;system call number (sys_exit)
     call    _syscall        ;call kernel

                             ;we do not return from sys_exit,
                             ;there's no need to clean stack
section .data

msg     db      "Hello, world!",0xa     ;our dear string
len     equ     $ - msg                 ;length of our dear string

In Mac OS X we should use format macho

nasm -f macho hello.asm

and for the linker (we need to specify the entry point)

ld -e _start -o hello hello.o

resources:
http://asm.sourceforge.net//howto/Assembly-HOWTO.rtf
http://zathras.de/angelweb/blog-intel-assembler-on-mac-os-x.htm

recover kopete password

2009-04-18T02:08:00.002+06:00

I was trying to recover a password from a kopeterc file.

Open the kopeterc file in a hex editor
In the password location you will find three-byte chunks: [EF][BE][XX]. The first two bytes stay most of the time same.
Just subtract each third byte from 0x1001F then you will get the character value from ASCII table.

everything was working fine as mentioned in Raphman's blog

But I had a little problem with numeric value. My combination was "EF BE XX" but before the numeric value it was "EF BF XX".

For the numeric value I have to subtract 0x40 again to get the original value.

It worked for me at last...

src: http://my.opera.com/raphman/blog/2008/02/01/kde-pasword-obfuscation?cid=7484288

Bengali in LaTeX in Mac OS X

2008-12-13T18:26:00.017+06:00

I have installed LaTeX for Mac OS from http://www.tug.org/mactex/

I was trying to write Bangla in LaTex. Found two ways to write bangla in LaTeX.

Unicode Standard

written by Golam Mortuza Hossain. Here I am just writing how to do this in Mac OS.

First download freefont-ttf-xyz.tar.gz from

http://savannah.nongnu.org/download/freefont/
or
ftp://ftp.gnu.org/pub/gnu/freefont/

which containing
-------------------------
FreeSerif.ttf
FreeSerifBold.ttf
FreeSerifItalic.ttf
FreeSerifBoldItalic.ttf

Paste these fonts in your "Macintosh HD/Library/Fonts/"

Now try sample document in TeXShop

\documentclass{article}
\usepackage{fontspec}
%
% This file is a based on the sample tex file to illustrate use of
% XeTeX in typesetting Bengali document.
% License under GNU FDL by Golam Mortuza Hossain, 2008
%
%url: http://methopath.wordpress.com/2008/06/26/writing-unicode-bengali-in-latex/
%
\font\serif="FreeSerif:script=beng"
\font\serifbb="FreeSerif:script=beng" at 24pt
\font\deffont="FreeSerif:script=beng" at 14pt

\title{\bf\serifbb সত্যজিৎ রায়}
\author{\bf\serif উইকিপিডিয়া, মুক্ত বিশ্বকোষ থেকে}
\date{}
\begin{document}
\deffont %Default font used for the document
\maketitle
সত্যজিৎ রায় (২রা মে, ১৯২১ – ২৩শে এপ্রিল, ১৯৯২) একজন বাঙালী চলচ্চিত্র নির্মাতা ও বিংশ শতাব্দীর অন্যতম শ্রেষ্ঠ চলচ্চিত্র পরিচালক। কলকাতা শহরে সাহিত্য ও শিল্পের জগতে খ্যাতনামা এক বাঙালী পরিবারে তাঁর জন্ম হয়। তিনি কলকাতার প্রেসিডেন্সি কলেজ ও শান্তিনিকেতনে রবীন্দ্রনাথ ঠাকুরের প্রতিষ্ঠিত বিশ্বভারতী বিশ্ববিদ্যালয়ে পড়াশোনা করেন। সত্যজিতের কর্মজীবন একজন বাণিজ্যিক চিত্রকর হিসেবে শুরু হলেও প্রথমে কলকাতায় ফরাসি চলচ্চিত্র নির্মাতা জঁ রনোয়ারের সাথে সাক্ষাৎ ও পরে লন্ডন শহরে সফররত অবস্থায় ইতালীয় নব্য বাস্তবতাবাদী ছবি লাদ্রি দি বিচিক্লেত্তে (ইতালীয় ভাষায় Ladri di biciclette, "সাইকেল চোর") দেখার পর তিনি চলচ্চিত্র নির্মাণে উদ্বুদ্ধ হন।
\end{document}

Select "XeLaTeX" from drop down menu and click "Typeset" button for Output in TeXShop.

reference: http://methopath.wordpress.com/2008/06/26/writing-unicode-bengali-in-latex/

Bangtex

First Bengali typesetting system using LaTeX. Which use a non-standard approach to write bangla.

example:

\centerline{\bngxxv ra\*g*er OShudh}
\centerline{\bngxviii sukumar ray}
-----------------------------------
which give output
-----------------------------------
রোগের ওষুধ
সুকুমার রায়

download bfonts.tar.gz, bsty.tar.gz, bsample.tar.gz from
http://www.saha.ac.in/theory/palashbaran.pal/bangtex/bangtex.html

Installing the font files
cd /usr/local/texlive/2008/texmf-dist/fonts/source
sudo mkdir bangla
extract bfonts.tar.gz in /usr/local/texlive/2008/texmf-dist/fonts/source/bangla/
Installing the macro files for LaTeX
cd /usr/local/texlive/2008/texmf-dist/tex/latex
sudo mkdir bangla
extract bsty.tar.gz /usr/local/texlive/2008/texmf-dist/tex/latex/bangla/
Initializing the files
sudo texhash

reference: http://www.saha.ac.in/theory/palashbaran.pal/bangtex/install.html#linux

Probhat Installer for MacOS

2008-11-06T22:17:00.002+06:00

I have created Probhat installer for MacOS.

You can download it from Ankur website click here.

Details on Ankur Wiki

get database structure using PHP

2008-09-20T19:18:00.007+06:00

I was facing problem to connect a mysql host, as it was only accepting connection from a specific server. But I need to know the database structure to design some report.

At last I have written a simple php code to print the table name along with the structure.


<?php
   
   mysql_connect("host_name","user","password") or die(mysql_error());
   mysql_select_db("database_name") or die(mysql_error());


   $result = mysql_query("SHOW TABLES;") or die(mysql_error());  

   while($row = mysql_fetch_array($result)){
  
 echo $row[0]; //print the table name
 
 $result2 = mysql_query("DESCRIBE ".$row[0].";") or die(mysql_error()); //get details schema for each table
 
 echo "<table border='1' width='70%'>";
 echo "<tr><td>Field</td><td>Type</td><td>Null</td><td>Key</td><td>Default</td><td>Extra</td>";
 
 while($row2 = mysql_fetch_array($result2)){
   
  for($i=0; $i<6; $i++){ 
   if($row2[$i] == "" || $row2[$i] == NULL){
    $row2[$i] = " ";
   }
  }   
   
  echo "<tr>";
  echo "<td>".$row2[0]."</td><td>".$row2[1]."</td><td>".$row2[2]."</td><td>".$row2[3]."</td><td>".$row2[4]."</td><td>".$row2[5];
  echo "</tr>";
 }
 
 echo "</table>"; 
 echo "<br/>";
}

?>

Just change your database configuration then upload in your server. Browse the url and you must delete the file from server after get the structure. Be safe...

function call in javascript

2008-08-31T02:45:00.003+06:00

I was studying russkey.mozdev.org source code to learn how to write Firefox extension.

Found this style of function call in javascript.


var collection =   {

 hello : function() {
  document.write("Hello World!");
 },
 
 understand : function() {
  document.write("<br/>Understand!");
 },
 
 bye : function() {
  document.write("<br/>bye!");
 }
 
};


var m = new collection.hello();
var n = new collection.understand();
var o = new collection.bye();

The output will


Hello World!
Understand!
bye!

My Facebook application

2008-08-30T13:20:00.004+06:00

apps.new.facebook.com/circle_of_blood/
or
apps.facebook.com/circle_of_blood/

Special thanks to Dr. Hamza for joining in this project and sponsor the hosting.

flash/swf height width in CodeIgniter 1.6

2008-08-27T03:53:00.005+06:00

In libraries/Upload.php

Edit the function is_image().

add the 'application/x-shockwave-flash' in $img_mimes


$img_mimes = array(
 'image/gif',
 'image/jpeg',
 'image/png',
 'application/x-shockwave-flash',
);

It simply allow set_image_properties function to read the height & width for flash.

//now this will not call for flash
if ( ! $this->is_image())
{
return;
}

Which user remove my facebook application

2008-08-26T00:23:00.001+06:00

To remove the user who remove your application from facebook automatically.

In the settings of the application,
"Can your application be added on Facebook?" set it yes.

Scroll down, you will get a Post-Remove URL input box.

Facebook will send data to the post remove url page about the user removing the application.
The post_remove.php example from my server.


<?php

//facebook lib
require_once 'fbclient/facebook.php';

//my database config
require_once 'config/config.php';

$appapikey = 'you_app_api_key';
$appsecret = 'your_app_secret_key';

$facebook = new Facebook($appapikey, $appsecret);
$user_id = $facebook->require_login();

$user = $facebook->get_loggedin_user();

if ($user != NULL && $facebook->fb_params['uninstall'] == 1)
{
  //The user has removed your app
  mysql_query("DELETE FROM users WHERE userid='$user_id'")  or die(mysql_error());
}

?>

Reference:
Creating Your First Application Facebook wiki
Post-Remove URL Facebook wiki

Matrix in OpenGL

2008-08-13T13:34:00.015+06:00


[0  4  8 12]
[1  5  9 13]
[2  6 10 14]
[3  7 11 15]

4x4 matrix in memory.

[R0 R3 R6 Tx]
[R1 R4 R7 Ty]
[R2 R5 R8 Tz]
[ 0  0  0  1]

'R' represents rotations and scaling (and shearing)
'T' translation

First, I read the matrix and print it.


float x[16];
int i;

//read the 4x4 matrix and store in x
glGetFloatv (GL_MODELVIEW_MATRIX, (float*)x);

//print the matrix
for(i=0; i<4; i++){
 printf("%f\t%f\t%f\t%f", x[i], x[i+4], x[i+8], x[i+12]);  
 printf("\n");
}

glTranslatef(2, 0.0, 0.0);


//print the matrix after translate

glGetFloatv (GL_MODELVIEW_MATRIX, (float*)x);

printf("\n-----------------------\n");

for(i=0; i<4; i++){
 printf("%f\t%f\t%f\t%f", x[i], x[i+4], x[i+8], x[i+12]);  
 printf("\n");
}

Run the program.

After translate our matrix changes in "Tx" -2.000000


-1.000000   0.000000   0.000000   0.000000
 0.000000  -0.196116   0.980581   0.000000
 0.000000   0.980581   0.196116  -10.198039
 0.000000   0.000000   0.000000   1.000000
-----------------------------------------
-1.000000   0.000000   0.000000  -2.000000
 0.000000  -0.196116   0.980581   0.000000
 0.000000   0.980581   0.196116  -10.198039
 0.000000   0.000000   0.000000   1.000000

Instead of translate if we use rotation


glRotatef(45, 0.0, 1.0, 1.0);

After rotation our matrix changes in "R"


-1.000000   0.000000   0.000000   0.000000
 0.000000  -0.196116   0.980581   0.000000
 0.000000   0.980581   0.196116  -10.198039
 0.000000   0.000000   0.000000   1.000000
-----------------------------------------
-0.707107   0.500000  -0.500000   0.000000
-0.588348  -0.023793   0.808257   0.000000
 0.392232   0.865699   0.310998  -10.198039
 0.000000   0.000000   0.000000   1.000000

Reference: www.gamedev.net Forum

Simple Solar System in OpenGL

2008-07-19T23:37:00.007+06:00

I have created a simple Solar System using OpenGL


#include <stdlib.h>
#include <GLUT/glut.h>
#include <math.h>
#include <stdio.h>

static float Xvalue = 0.0, Yvalue = 0.0, Angle = 0.0;

int MoveX = 0;
int MoveY = 0;

void myInit(void) {
 glClearColor (0.0, 0.0, 0.0, 0.0);
}


static float x1[360][2];
static float x2[360][2];
static float x3[720][2];


void generateCircle()
{
 int i = 0;
 
  for(i=0; i <= 360; i++)
  {
   x1[i][0] = sin(i*3.1416/180)*3;
   x1[i][1] = cos(i*3.1416/180)*3;
  }
 
 for(i=0; i <= 360; i++)
 {
  x2[i][0] = sin(i*3.1416/180)*1;
  x2[i][1] = cos(i*3.1416/180)*1;
 }
 
 for(i=0; i <= 720; i++)
 {
  x3[i][0] = sin(i*3.1416/180)*5;
  x3[i][1] = cos(i*3.1416/180)*5;
 }
 
}




void myDisplay(void) {
 
 glClear (GL_COLOR_BUFFER_BIT);
 glColor3f (1.0, 1.0, 1.0);
 
 //sun
 glPushMatrix();
 gluLookAt (0.0, 10.0, 2.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0);
 glTranslatef(Xvalue, 0.0, Yvalue);
 glRotatef(Angle, 0.0, 0.0, 1.0);
 glutWireSphere (0.5, 15, 15);
 glPopMatrix();
 
 glPushMatrix();
 gluLookAt (0.0, 10.0, 2.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0);
 if(MoveX==360)
  MoveX = 0;
 glTranslatef(x1[MoveX][1], x1[MoveX][0], 0.0);
 glRotatef(Angle, 0.0, 0.0, 1.0);
 glutWireSphere (0.4, 15, 15);
 glTranslatef(x2[MoveX][0], x2[MoveX][1], 0.0);
 glutWireSphere (0.2, 15, 15);
 glPopMatrix();
 
 glPushMatrix();
 gluLookAt (0.0, 10.0, 2.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0);
 if(MoveY==720)
  MoveY = 0;
 glTranslatef(x3[MoveY/2][1], x3[MoveY/2][0], 0.0);
 glRotatef(Angle, 0.0, 0.0, 1.0);
 glutWireSphere (0.4, 15, 15);
 int i = 0;
 //glBegin(GL_LINE_STRIP);
 glBegin(GL_QUAD_STRIP);
 for(i=0; i <= 360; i++)
 {
  glVertex3f(sin(i*3.1416/180)*0.5, cos(i*3.1416/180)*0.5, 0 );
  glVertex3f(sin(i*3.1416/180)*0.7, cos(i*3.1416/180)*0.7, 0 );
 }
 glEnd();
 glRotatef(Angle, 0.0, 0.0, 1.0);
 glPopMatrix();
 
 glFlush ();
}


void resize(int w, int h)
{
 glViewport (0, 0, (GLsizei) w, (GLsizei) h); 
 glMatrixMode (GL_PROJECTION);
 glLoadIdentity ();
 glFrustum (-1.0, 1.0, -1.0, 1.0, 1.5, 20.0);
 glMatrixMode (GL_MODELVIEW);
 glLoadIdentity ();
}


void animation()
{
 Angle += 15.0;
 glutPostRedisplay();
 MoveX +=1;
 MoveY +=1;
 glutPostRedisplay();
 glutTimerFunc(100, animation, 0);
 
}


int main(int argc, char ** argv){
 
 glutInit(&argc, argv);
 glutInitDisplayMode(GLUT_SINGLE | GLUT_RGB);
 glutInitWindowSize(1024, 768);
 glutInitWindowPosition(100, 150);
 glutCreateWindow("OpenGL");
 myInit();
 glutDisplayFunc(myDisplay);
 glutReshapeFunc(resize);  
 generateCircle();
 glutTimerFunc(100, animation, 0);
 glutMainLoop();
}

iReport java.lang.NullPointerException

2008-07-01T16:58:00.005+06:00

I was facing some problem to start iReport in my Debian

salahuddin@crab:~/iReport-2.0.3$ ./iReport.sh
Exception in thread "main" java.lang.NullPointerException
at java.util.Hashtable.put(libgcj.so.70)
at javax.swing.plaf.basic.BasicToolBarUI.setBorderToRollover(libgcj.so.70)
at javax.swing.plaf.basic.BasicToolBarUI$ToolBarContListener.componentAdded(libgcj.so.70)
at java.awt.Container.addImpl(libgcj.so.70)
at javax.swing.JToolBar.addImpl(libgcj.so.70)
at java.awt.Container.add(libgcj.so.70)
at it.businesslogic.ireport.gui.ToolbarFormatPanel.initComponents(ToolbarFormatPanel.java:170)
at it.businesslogic.ireport.gui.ToolbarFormatPanel.(ToolbarFormatPanel.java:57)
at it.businesslogic.ireport.gui.MainFrame.(MainFrame.java:487)
at it.businesslogic.ireport.gui.MainFrame.main(MainFrame.java:8020)
salahuddin@crab:~/iReport-2.0.3$

Here is my .bashrc

export CVSROOT=:ext:salahuddin@paq:/home/cvs
export CVS_RSH=/usr/bin/ssh
export ANT_OPTS=-Xmx512m
export ANT_HOME=/usr/ant
export JAVA_HOME=/usr/jdk1.5.0_03
export CLASS_PATH=$JAVA_HOME/lib/:$JAVA_HOME/jre/lib
export CLASSPATH=$JAVA_HOME/lib/:$JAVA_HOME/jre/lib
export PATH=$PATH:$ANT_HOME/bin:$JAVA_HOME/bin
export CATALINA_HOME=/usr/tomcat
export CVSEDITOR=vim

Note: My /usr/java is soft linked with /usr/jdk1.5.0_03

Main problem /usr/bin/java was linked with /etc/alternatives/java

salahuddin@crab:/usr/bin$ ls -l java*
lrwxrwxrwx 1 root root 22 2008-04-30 22:29 java -> /etc/alternatives/java
lrwxrwxrwx 1 root root 23 2008-06-26 15:52 javac -> /etc/alternatives/javac
lrwxrwxrwx 1 root root 25 2008-07-01 15:58 javadoc -> /etc/alternatives/javadoc
lrwxrwxrwx 1 root root 23 2008-06-26 15:52 javah -> /etc/alternatives/javah

The main problem was it was using java from the gij package/

#cd /usr/bin/
#mv java java2
#mv javac javac2
#mv javah javah2
#mv javadoc javadoc2

#ln -s /usr/java/bin/java /usr/bin/java
#ln -s /usr/java/bin/javac /usr/bin/javac
#ln -s /usr/java/bin/javah /usr/bin/javah
#ln -s /usr/java/bin/javadoc /usr/bin/javadoc

It simply solve the problem.

Get system load using Python Script

2008-06-12T02:25:00.005+06:00

I have written a simple python script that collect system load information and store in a XML file.


#!/usr/bin/env python

import os
import commands
import time
from time import gmtime, strftime

while 0 < 10:
 
 file_name = strftime("%Y_%m_%d_%H_%M", gmtime()) 

 data =  commands.getoutput("w | grep load")
 xml_data = ""+ data + ""
 
 print xml_data
 
 
 if os.path.isfile(file_name + ".xml"):
  x=0
 else:

  f_prev=open(file_name + ".xml", 'a')
  f_prev.write("")
  f_prev.close

  f=open(file_name + ".xml", 'w')
  f.write("\n\n")
  f.close()

 
 f=open(file_name + ".xml", 'a')

 f.write(xml_data+"\n")

 f.close()
 time.sleep(3)

We will get XML file like this.

<?xml version='1.0' encoding='utf-8'?>
<data>
<load> 01:40:38 up 6:27, 3 users, load average: 0.07, 0.07, 0.03</load>
<load> 01:40:48 up 6:27, 3 users, load average: 0.06, 0.07, 0.03</load>
<load> 01:40:58 up 6:27, 3 users, load average: 0.05, 0.07, 0.03</load>
</data>

putpixel in Linux

2008-06-09T02:53:00.007+06:00

Some days ago I was trying to read a BMP format file and show it using putpixel.

I haved used qdbmp.sourceforge.net which is a minimalistic cross-platform C library for handling BMP image file.

The Allegro (www.allegro.cc) graphics library that provides many functionality.

putpixel
Writes a pixel into a bitmap.
Description void putpixel(BITMAP *bmp, int x, int y, int color);

Download qdbmp.c qdbmp.h from the qdbmp website

Sample code that reads a BMP file and show it using Allegro library

/*
* Example program for the Allegro library, by Shawn Hargreaves.
*
* This is a very simple program showing how to get into graphics
* mode and draw text onto the screen.
*/

#include <allegro.h>
/* Creates a negative image of the input bitmap file */
#include "qdbmp.h"
#include <stdio.h>

int main( int argc, char* argv[] )
{
BMP* bmp;
UCHAR r, g, b;
UINT width, height;
UINT x, y;

int color;
/* you should always do this at the start of Allegro programs */
if (allegro_init() != 0)
return 1;

/* set up the keyboard handler */
install_keyboard();

/* set a graphics mode sized 320x200 */
if (set_gfx_mode(GFX_AUTODETECT, 320, 200, 0, 0) != 0) {
if (set_gfx_mode(GFX_SAFE, 320, 200, 0, 0) != 0) {
set_gfx_mode(GFX_TEXT, 0, 0, 0, 0);
allegro_message("Unable to set any graphic mode\n%s\n", allegro_error);
return 1;
}
}

/* set the color palette */
set_palette(desktop_palette);

/* clear the screen to white */
clear_to_color(screen, makecol(255, 255, 255));

/* you don't need to do this, but on some platforms (eg. Windows) things
* will be drawn more quickly if you always acquire the screen before
* trying to draw onto it.
*/
acquire_screen();

/* write some text to the screen with black letters and transparent background */
// textout_centre_ex(screen, font, "Hello, world!", SCREEN_W/2, SCREEN_H/2, makecol(0,0,0), -1);

if ( argc != 3 )
{
fprintf( stderr, "Usage: %s <input file> <output file>\n", argv[ 0 ] );
return 0;
}

/* Read an image file */
bmp = BMP_ReadFile( argv[ 1 ] );
BMP_CHECK_ERROR( stderr, -1 ); /* If an error has occurred, notify and exit */

/* Get image's dimensions */
width = BMP_GetWidth( bmp );
height = BMP_GetHeight( bmp );

/* Iterate through all the image's pixels */
for ( x = 0 ; x < width ; ++x )
{
for ( y = 0 ; y < height ; ++y )
{
/* Get pixel's RGB values */
BMP_GetPixelRGB( bmp, x, y, &r, &g, &b );

color = makecol(r,g,b);

putpixel(screen, x, y, color);

/* Invert RGB values */
BMP_SetPixelRGB( bmp, x, y, 255 - r, 255 - g, 255 - b );
}
}

// putpixel(screen, SCREEN_W/2, SCREEN_H/2, 50);

/* you must always release bitmaps before calling any input functions */
release_screen();

/* wait for a key press */
readkey();

/* Save result */
BMP_WriteFile( bmp, argv[ 2 ] );
BMP_CHECK_ERROR( stderr, -2 );

/* Free all memory allocated for the image */
BMP_Free( bmp );

return 0;
}

END_OF_MAIN()

Compile
$gcc -g -O2 -o name `allegro-config --libs` sample.c qdbmp.c

Resources:
http://qdbmp.sourceforge.net/
http://www.allegro.cc/manual/api/drawing-primitives/putpixel
http://www.allegro.cc/manual/api/truecolor-pixel-formats/makecol

Probhat in MacOS

2008-03-12T15:12:00.009+06:00

I have ported the Probhat Layout (a bangla keyboad) in MacOS .

Download link
http://www.ankur.org.bd/wiki/Documentation#Mac_OS_X_2

* Unpack the zip file, there will be two files "Probhat.icns" and "Probhat.keylayout".
* Paste these two files in "Macintosh HD/Library/Keyboard Layouts/" or "Home/Library/Keyboard Layouts/", which will install the keyboard layout.

* Go to "System Preferences" > "International" > "Input Menu" scroll down and make sure that "Probhat" is checked.

* Make sure Show input menu in menu bar is checked, default English layout will be highlighted in the menu bar.

* Now click on "Keyboard Shortcuts" and in the "Input Menu" section put your desired keyboard shortcut that will enable you to change the keyboard layout (Our choice was Alt+Space).

* Now while typing in any application, pressing Alt+Space will switch to Probhat Layout and Probhat layout symbol will be highlighted in the menu bar.

LDAP address book in Debian

2008-01-29T01:52:00.000+06:00

#apt-get install slapd ldap-utils ldapscripts

edit /etc/ldap/slapd.conf

----------------------------

//change the suffix accodring to your domain. here "example.com.bd"

suffix "dc=example,dc=com,dc=bd"

//uncomment this line

rootdn "cn=admin,dc=example,dc=com,dc=bd"

//add after rootdn line (it is plain text password)
rootpw secret

//change the dc=example,dc=com,dc=bd everywhere in slapd.conf
//keep other config as it is.

restart ldap
#/etc/init.d/slapd restart

edit /etc/ldap/ldap.conf

create a file name directory.ldif in /etc/ldap/schema/

directory.ldif
----------------

dn:     dc=example,dc=com,dc=bd
objectClass:    top
objectClass:    dcObject
objectClass:    organization
dc:     example
o:      Example Inc.

dn:     ou=addressbook, dc=example,dc=com,dc=bd
objectClass:    top
objectClass:    organizationalUnit
ou:     addressbook

from shell cd to /etc/ldap/schema/
$ldapadd -x -D 'cn=admin,dc=example,dc=com,dc=bd' -f directory.ldif -W
(give pass secret here)

To check
$ldapsearch -b 'dc=example,dc=com,dc=bd' 'objectclass=*' -x

Input data using phpldapadmin

#apt-get install phpldapadmin

http://localhost/phpldapadmin/

login: cn=admin,dc=example,dc=com,dc=bd
pass: secret

or you can add data manually

create a file contact.ldif in /etc/ldap/schema/

contact.ldif
--------------

dn: cn=Blogger OS, ou=addressbook,dc=example,dc=com,dc=bd
objectClass: top
objectClass: person
objectClass: organizationalPerson
objectClass: inetOrgPerson
cn: Blogger
gn: Ldap
sn: OS
mail: blogger@example.com.bd
physicalDeliveryOfficeName: Dhaka, Bangladesh.
postalAddress: PO BOX 909
ou: addressbook
st: LA
postalCode: 1215
telephoneNumber: 111-111-1111
facsimileTelephoneNumber:

111-111-1111


pager:

111-111-1111


mobile:

111-111-1111


homePhone:

111-111-1111

from shell cd to /etc/ldap/schema/
$ldapadd -x -D 'cn=admin,dc=example,dc=com,dc=bd' -f contact.ldif -W
(give pass secret here)

To check
$ldapsearch -b 'dc=example,dc=com,dc=bd' 'objectclass=*' -x

Reference:
ONLamp.com Link

OpenLDAP Link

Triple Boot in MacBook (Debian AMD64) using rEFIt

2007-10-24T21:59:00.001+06:00

I have got success to create triple boot in mac book using rEFIt


salahuddin-pashas-computer:~ salahuddin$ diskutil list
/dev/disk0
#:                   type     name                           size          identifier
0:  GUID_    partition_scheme                    *111.8 GB      disk0
1:                             EFI                                  200.0 MB      disk0s1
2:              Apple_HFS Macintosh HD           111.2 GB     disk0s2

Resize the volume


diskutil resizeVolume /dev/disk$OSX OSXpartsize 2ndPartType 2ndPartLabel 2ndPartSize 3rdPartType 3rdPartLabel 3rdPartSize

Here I am giving


diskutil resizeVolume /dev/disk0s2 71.1G Linux Linux 25G "MS-DOS FAT32" Windows 15G

(If you face problem while resizing the partitions, install/reinstall a fresh copy of Mac OS)

Install rEFIt in Mac OS (Mac disk image)

reboot your mac book and ensure that rEFIt is loading at boot time.

Boot Windows XP SP2 32bit, you will find the CD appear in the boot menu of rEFIt or use 'C' to boot. Now install it sda4
(warning: just format the sda4 in (fat32 or ntfs) while installing windows, but do not repartition/change anything!!!)

reboot and you will find 2 option for booting the Mac OS and Windows.
(warning: do not update the partition record in the rEFIt now, the Linux partition may update as fat32)

Installing Debian:

Get the AMD64 version of Debian (you can also use generic 32 bit)

Install Debian normally without the grub or lilo

(when it will try to install grub or lilo use go back, and from main menu select finish installation from Debian installation CD.)

From rEFIt menu update the partition record. Important!!!

Now boot with Debian installation CD up to the partitioning.
(otherwise you will face problem while installing lilo)
(*** you can see the easy way below after update the partition table)

go to console mode

ctrl+alt+F2
mkdir /tmp/debian
mount /dev/sda3 /tmp/debian
chroot /tmp/debian
mount /proc
apt-get install lilo
nano /etc/lilo.conf

sample lilo config


boot=/dev/sda3
default=Debian

map=/boot/map
delay=20
image=/vmlinuz initrd=/initrd.img
root=/dev/sda3
label=Debian
read-only

Install lilo in sda3

lilo -b /dev/sda3

done...

(***another easy way is install debian from begining again, now install lilo in /dev/sda3)(do not install grub) done...

After reboot you will find 3 OS boot option in rEFIt menu.

Important configuration!!!

Install CPU frequency, otherwise you mac book can be too hot in a short time.
http://wiki.debian.org/MacBook#head-7271d26c7c6e311218ca20422f7eb86e76a6d5e3

Configure the Color Profile (install xcalib using apt) http://gentoo-wiki.com/HARDWARE_Apple_MacBook#Colour_Profilept

F1, F2, F3... Key configuration
apt-get install pommed

Reference
http://wiki.debian.org/MacBook

Resources
http://wiki.debian.org/MacBook
http://wiki.onmac.net/index.php/Triple_Boot_via_BootCamp_Ubuntu
http://gentoo-wiki.com/HARDWARE_Apple_MacBook

Bought a MacBook

2007-10-06T21:54:00.000+06:00

Today I bought

Intel Core 2 Duo 2.16 GHZ (white)
2 GB Ram
Superdrive

With Mr. Jamil and Mofidul Islam

Check date in Java Script

2007-09-27T17:38:00.002+06:00

here is my date check javascript.

function leapyearcheck(year)
{

if(year.value % 4 != 0)
{
return 0;
}

else
{
if(year.value % 100 != 0)
{
return 1; //leap year
}

else
{

   if(year.value % 400 != 0)
   {
   return 0
   }

   else
   return 1;  //leap year

}

}
}


function datecheck(day,month,year) //call this function
{
//alert(day.value);

if(!leapyearcheck(year))
{
//alert("Not Leap Year");

   if(month.value == 2)
   {
       if(day.value > 28)
       {
       alert("Check the Day and Month");
       return false;
       }

   }
}

else

{

//alert("Leap Year");
if(month.value == 2)
   {
       if(day.value > 29)
       {
       alert("Check the Day and Month");
       return false;
       }
   }

}


Thanks to HasinHyder for a tricky one..

var dt = new Date(year+"/02/29");
if (dt.getMonth()=="1")
alert (year + " is a leap year");
else
alert(year + " is not a leap year")

mdb file in OpenOffice.org

2007-09-27T17:21:00.000+06:00

To work with mdb file, open the OpenOffice.org-base select connect to an existing database, select Microsoft Access.

browse the mdb file and you need to save a odb file that will enable you to view the tables,query etc on it.

To copy the content of a table in OpenOffice.org Calc
go to View--> Data Sources

right click in the left pannel of in the database view option, click on the "Registered databases", click "New" and locate your created odb file.

Click on the database you want to copy. Select the Queries/Tables and copy the content by righ click on the query/table name.

Paste in the OpenOffice.org-Calc. Now you can save in ods, and also save as in different formats.

Back from IIUC Open Source Camp - 5

2007-09-02T07:30:00.000+06:00

Group Photo

Starting for IIUC OSS Camp-5

2007-08-30T13:30:00.000+06:00

Me (salahuddin66) , Mahay Alam Khan and Belayet Hossain starting for IIUC OSS Camp-5 Chittagong.

Open Source Camp - 5
31th - 1th August 2007
Chittagong, Bangladesh

2007-07-17T01:40:00.000+06:00

Today I got success to configure phpbb with wordpress.It will enable the phpbb registered user to login the wordpress blog (after get approve from admin) with same id and password.I tried with phpBB-2.0.22 and wordpress-2.2.1Simply after install both in a same database.create a connections.php in the includes directory of the phpbbconnections.php

<?php$con = mysql_connect("localhost","your_username","your_password");

if (!$con){die('Could not connect: ' . mysql_error());}mysql_select_db("your_database", $con);?>

edit includes/usercp_register.php of the phpbbaround 630 lines you will find some line like this

/ Get current date//$sql = "INSERT INTO " . USERS_TABLE . " (user_id, ...);

Bellow this line add

// added by salahuddin66include_once("connections.php");

$query = "INSERT INTO wp_users (user_login, user_nicename, display_name, user_pass, user_email, user_registered) VALUES ('" . str_replace("'", "''", $username) . "', '" . str_replace("'", "''", $username) . "', '". str_replace("'", "''", $username) . "', '" . str_replace("'", "''", $new_password) . "', '" . str_replace("'", "''", $email)."', NOW() )";

if (!mysql_query($query,$con)){die('Error: ' . mysql_error());}

// finish added by salahuddin66

done..Now the users will register for the phpbb forum will also register for the wordpress blog automatically.To enable his wordpress account, wordpress admin need to give him approve/some role.

My first GTK app

2007-06-10T23:49:00.000+06:00

bDict is my first GTK app. It is written in C using glade3,Glib and based on the "Anubadok: The Bangla Machine Translator"

http://www.bengalinux.org/cgi-bin/abhidhan/bdict.pl

I just create the GTK GUI for bdict

AIUB 4th OSS Camp on 8th and 9th June 2007

2007-06-10T19:12:00.001+06:00

Group Photo