John Ward

C Strings Example (Very Handy)

2012-02-01T04:07:00.001-08:00

http://www.cprogramming.com/tutorial/lesson9.html

Linux/Mac/Windows open source project

2012-02-01T03:14:00.000-08:00

The GTK+ Project:
http://www.gtk.org/

8 Ways to Build Customer Loyalty

2012-02-01T03:04:00.001-08:00

http://www.inc.com/geoffrey-james/8-ways-to-build-customer-loyalty.html

Printf Formatting

2012-01-27T02:42:00.000-08:00

%d %i   Decimal signed integer.
%o      Octal integer.
%x %X   Hex integer.
%u Unsigned integer.
%c Character.
%s String. See below.
%f double
%e %E   double.
%g %G   double.
%p      pointer.
%n Number of characters written by this printf.

No argument expected.
%%  %. No argument expected.

Embed PDF in website

2012-01-25T03:10:00.000-08:00

To embed a pdf in a web page use the following HTML code:

<embed src="weddingbrochure.pdf" width="850" height="575">

Here is the above example:
http://www.whitemare.co.uk/occasions/weddingbrochure.html

It is then down to your browser to take care of embedding the PDF program with the loaded document. I also include a link to the actual PDF underneath the embed, if you want users to be able to download the document. Chrome just displays the PDF document in a scrollable view, with no controls. IE and Firefox display the PDF document with PDF controls around the document. I personally prefer Chromes minimal approach.

Remove a startup application

2012-01-23T03:24:00.000-08:00

If you have an application that runs every time you start Windows and want to remove it first look in the Start up folder, normally C:\Documents and Settings\<User Name>\Start Menu\Programs\Startup.

If it is not in this folder then it is set to run in the registry:

Select Run, from start menu and type: Regedit

Then navigate to on of these locations, find the application name you want to stop running and delete it.

[HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run]
[HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce]

Be careful not to delete something you might need to run.

2012-01-16T05:44:00.000-08:00

Nokia, as part of it's efforts to regain it's smart phone crown have signed a deal with EA Games, for the next 25 titles. Would that make you buy a window phone?

Nokia gets another OS

2012-01-16T05:31:00.000-08:00

Nokia are buying yet another operating system, I hope for the company involved (and people who have put their hard work into it), that it is used. Maybe this is a replacement for Series 40? Or maybe another canned project in years to come???

http://www.theregister.co.uk/2012/01/09/nokia_another_os/

US killer spy drone controls switch to Linux

2012-01-16T05:26:00.000-08:00

Seriously, you would power a leathal Drone on Windows, well it appears not any more:

http://www.theregister.co.uk/2012/01/12/drone_consoles_linux_switch/

Symbian and S40 here to stay.

2012-01-04T09:03:00.001-08:00

Nokia have announced that they are going to rename Symbian Belle to Nokia Belle. Now is this a move that suggests mathballing? or one that is look to move it forward.

http://www.techspot.com/news/46756-nokia-renames-symbian-belle-to-nokia-belle-available-in-february.html
I think for Nokia to maintain their low end market share, the S60 (Symbian) and S40 platforms are here to stay.

The shuttleworth foundation's take on this:
http://www.shuttleworthfoundation.org/nokia-symbianbelle-here-to-stay/

C++11 STL additions cheatsheet

2011-12-16T03:39:00.000-08:00

http://www.linkedin.com/groupItem?view=&srchtype=discussedNews&gid=100895&item=85011016&type=member&trk=eml-anet_dig-b_pd-ttl-cn&ut=1kmV9V-wAIK501

PDF Cheat Sheet Here

Good job by Alex.

Good CPP Reference

2011-12-16T03:35:00.001-08:00

http://en.cppreference.com/w/cpp

Open GL ES from the ground up tutorial

2011-12-03T13:30:00.001-08:00

Open GL ES tutorial for iPhone:

Part 1
Part 2
Part 3
Part 4
Part 5
Part 6

Good PHP Form example

2011-11-29T06:41:00.001-08:00

Take a look here

C Technical Interview questions

2011-11-29T06:37:00.001-08:00

Not written by me, from here

What will print out? main()
{
        char *p1=“name”;
        char *p2;
        p2=(char*)malloc(20);
        memset (p2, 0, 20);
        while(*p2++ = *p1++);
        printf(“%sn”,p2);
}
Answer:empty string.
What will be printed as the result of the operation below:

main()
{
    int x=20,y=35;
    x=y++ + x++;
    y= ++y + ++x;
    printf(“%d%dn”,x,y); }
Answer : 5794
What will be printed as the result of the operation below:

main()
{
int x=5;
printf(“%d,%d,%dn”,x,x< <2,x>>2); }
Answer: 5,20,1
What will be printed as the result of the operation below:

#define swap(a,b) a=a+b;b=a-b;a=a-b; void main()
{
    int x=5, y=10;
    swap (x,y);
    printf(“%d %dn”,x,y);
    swap2(x,y);
    printf(“%d %dn”,x,y);
}
int swap2(int a, int b)
{
    int temp;
    temp=a;
    b=a;
    a=temp;
    return 0;
}
Answer: 10, 5
10, 5
What will be printed as the result of the operation below:

main()
{
    char *ptr = ” Cisco Systems”;
    *ptr++; printf(“%sn”,ptr);
    ptr++;
    printf(“%sn”,ptr); }
Answer:Cisco Systems
isco systems
What will be printed as the result of the operation below:

main()
{
    char s1[]=“Cisco”;
    char s2[]= “systems”;
    printf(“%s”,s1);
}
Answer: Cisco
What will be printed as the result of the operation below:

main()
{
    char *p1;
    char *p2;     p1=(char *)malloc(25);
    p2=(char *)malloc(25);
    strcpy(p1,”Cisco”);
    strcpy(p2,“systems”);
    strcat(p1,p2);
    printf(“%s”,p1);
}
Answer: Ciscosystems
The following variable is available in file1.c, who can access it?:
```
static int average;
```
Answer: all the functions in the file1.c can access the variable.
WHat will be the result of the following code?

#define TRUE 0 // some code while(TRUE)
{
// some code
}
Answer: This will not go into the loop as TRUE is defined as 0.
What will be printed as the result of the operation below:

int x;
int modifyvalue()
{
    return(x+=10);
} int changevalue(int x)
{
    return(x+=1);
}
void main()
{
    int x=10;
    x++;
    changevalue(x);
    x++;
    modifyvalue();
    printf("First output:%dn",x);
    x++;
    changevalue(x);
    printf("Second output:%dn",x);
    modifyvalue();
    printf("Third output:%dn",x);
}
Answer: 12 , 13 , 13
What will be printed as the result of the operation below:

main()
{
    int x=10, y=15;
    x = x++;
    y = ++y;
    printf(“%d %dn”,x,y); }
Answer: 11, 16
What will be printed as the result of the operation below:

main()
{
    int a=0;
    if(a==0)
        printf(“Cisco Systemsn”);
        printf(“Cisco Systemsn”); }
Answer: Two lines with “Cisco Systems” will be printed.

To create/decompress a tar zip (tar.gz) archive

2011-11-17T14:15:00.001-08:00

To create a tar zip (tar.gz) archive:

$ tar -zcvf <archive name>.tar.gz directory_to_compress

To decompress the archive:

(To the current directory)
$ tar -zxvf <archive name>.tar.gz

(To a specified directory)

$ tar -zxvf <archive name>.tar.gz -C /extract_directory/

Linux topics I'm going to add to this Blog

2011-11-04T09:46:00.000-07:00

1. Installing apache web server.

2. Installing SVN.

3. Setting up Samba.

4. How to enable remote desktop when you don't have a monitor attached to your Linux PC.

5. An update of the SSH topic, so you can access your linux PC from anywhere, securely.

Nothing new, but topics I want to have on my blog for Linux completeness. I will create links from this post as I write these topics up.

Website integration with your Facebooks pages events

2011-11-03T10:39:00.000-07:00

It is possible to integrate facebook with your website events using the facebook API's, without having to provide a login etc.

A solution can be implemented using a combination of javascript for the connection and php for the management.

See http://www.whitemare.co.uk/whatson/index.html

All these events are from http://www.facebook.com/thewhitemare

So all the administration is carried out on the FB page, and a small amount on the website. If you want to know how to do this, feel free to send me an email.

Kitesurfing useful Links

2011-11-03T07:05:00.000-07:00

Useful links for Kitesurfing, pinched from Kiteboarder.co.uk

Organisations

http://www.kitesurfing.org - BKSA

http://www.pkra.info - PKRA

http://www.kiteboardpro.com - KPWT

Weather

http://www.bbc.co.uk/weather - BBC

http://www.metoffice.gov.uk - Met Office

http://www.xcweather.co.uk - XC Weather

http://www.windguru.cz - Wind Guru

http://geocities.com/kuztardd - Zample's site

http://www.weather.co.uk

http://www.magicseaweed.com

Mags etc.

http://www.kitesurf-magazine.co.uk - Kitesurf Mag

http://www.network26.com/kiteworld - Kiteworld

http://www.kbmag.com - online mag

http://www.kitefilm.com

Kitesurf Brands

http://www.sskiteboarding.com - Slingshot

http://www.naishkites.com - Naish

http://www.takoon.com - Takoon

http://www.wipikakiteboarding.com - Wipika

http://www.flexifoil.com - Flexifoil

http://www.airush.com - Airush

http://www.northkites.com - North

http://www.fanatic.com - Fanatic

http://www.robertoriccidesigns.com - RRD

http://www.dakine.com - Dakine

http://www.gaastrakites.com - Gaastra

http://www.cabrinhakites.com - Cabrinha

http://www.fonekites.com - F One

http://www.cautionkites.com - Caution!

http://www.mauimagic.com - Maui Magic

http://www.brunottiboards.com - Brunotti

http://www.litewavedesigns.com - Lightwave

http://www.bestkiteboarding.com - Best

http://www.globeriderkites.com - Globerider Kites

http://www.flysurfer.de - Flysurfer

http://www.peterlynnkiteboarding.com - Peter lynn

http://www.boom-kites.com - Boom Kites

http://www.tarifafincompany.com - TFC

http://www.pro-limit.com - Pro Limit

http://www.oceanrodeo.com - Ocean Rodeo

http://www.liquidforcekites.com - Liquid Force

http://www.bodyglove.com ~ Body Glove

http://www.mauimagic.com ~ Maui Magic - Mystic

http://www.cskins.com/ - C-Skins

http://www.salomonscore.com/uk/fullscreen.asp?iDebit=0 - Salamon (yes they do wetsuits now)

http://www.oneill.com ~ O'Neill

http://www.prolimit.com ~ ProLimit

http://www.rooworld.com ~ Quintana Roo

http://www.ripcurl.com ~ RipCurl

http://www.sola.co.uk ~ Sola

http://www.snuggwetsuits.co.uk/ - SNUGG (not Robin)

Photographers

http://www.photoboxgallery.com/escapegallery - Ian Edmondson

http://www.davidsimsphotography.com - Dave Sims

http://www.christianblack.com - Christian Black

http://www.guyharrop.com - Gut Harrop

http://www.redearthmedia.com - Red Earth Media

Pro Kitesurfers websites

http://www.aaronhadlow.com - Aaron Hadlow

http://www.rubenlenten.com - Ruben Lenten

http://www.MartinVari.com - Martin Vari

http://www.giannimix.com - Gianni Agreo

http://www.alvaronieva.com - Alvaro Onieva

Other

http://www.ebay.co.uk

http://www.kiteforum.com (word on the world street)

http://www.kiteboarding.be

http://www.kiteboard.be

http://www.ikiteboarding.com

http://www.kite-surf.com

http://www.kitesurferen.dk

http://kitesurf.start4all.com/

http://www.zeroprestige.org (DIY central)

http://www.foilzone.com

http://www.foilpilot.com

SHOPS and other palces to spend your hard earned cash

http://www.rushextreme.co.uk
marc@rushextreme.co.uk

http://www.performancefoils.co.uk
info@sportscorner.co.uk

http://www.extremekiteshop.com
info@extremekiteshop.com

http://www.ukairsports.com
patrick@ukairsports.com

http://www.oceanside.co.uk
info@oceanside.co.uk

http://www.roho.co.uk
sales@roho.co.uk

http://www.trick-of-the-eye-kites.co.uk
carl@trick-of-the-eye-kites.co.uk

http://www.air-head.com
info@air-head.com

http://www.boostsports.com
info@boostsports.com

http://www.powerkiteshop.com
info@powerkiteshop.com

http://www.coastguard-kites.com
info@coastguard-kites.com

http://www.zerogravitykitesurfing.co.uk
phil@zerogravitykitesurfing.co.uk

http://www.rushextreme.co.uk
shop@rushextreme.co.uk

http://www.airjam.co.uk
sales@airjam.co.uk

http://www.2xs.co.uk
shop@2xs.co.uk

http://www.whitstablewindsurfing.com
info@whitstablewindsurfing.com

http://www.leisure-lakes.co.uk
esales@leisure-lakes.co.uk

http://www.windthings.co.uk
shop@windthings.co.uk

http://www.missionadventure.co.uk
info@missionadventure.co.uk

http://www.nobleboards.co.uk
enquiries@nobleboards.co.uk

http://www.wcws.biz
sales@wcws.biz

http://www.solentsailboards.co.uk
solentsailboards@aol.com

http://www.shore.co.uk
sales@shore.co.uk

http://www.thewaterboard.co.uk
info@thewaterboard.co.uk

http://www.dirtnsurf.co.uk
Simon@dirtnsurf.co.uk

http://www.kiteworld.co.uk
sales@kiteworld.co.uk

http://www.kiteboardinguk.com
info@kiteboardinguk.com

http://www.airbornkites.co.uk
sales@airbornkites.co.uk

http://www.kiteshack.co.uk
info@kiteshack.co.uk

http://www.five-forty.co.uk
info@five-forty.co.uk

http://www.kitesonboard.com
shop@kitesonboard.com

http://www.kitestore.co.uk
info@kitestore.co.uk

http://www.surfhog.co.uk
info@surfhog.co.uk

http://www.boardwise.com
admin@boardwise.com

http://www.surfstore.co.uk
sales@surfstore.co.uk

http://www.buckys.co.uk
Bucky@funsport.fsnet.co.uk

http://www.pooleharbour.co.uk
pooleharbour.boardsailing@virgin.net

http://www.kiteforce.co.uk
angelo@kiteforce.co.uk

http://www.tradewind-kites.demon.co.uk
sales@tradewind-kites.demon.co.uk

http://www.members.aol.com/justkites
Justkites@AOL.com

http://www.walkonwater-uk.com
info@walkonwater-uk.co.uk

http://www.boardriders.co.uk
info@boardriders.co.uk

http://www.surf-sales.com
graeme@surf-sales.com

http://www.eckiteboarding.co.uk

http://www.kitebits.com
info@kitebits.com

http://www.edgewatersports.com
info@edgewatersports.com

http://www.extremezonesports.co.uk
david@extremezonesports.co.uk

http://www.ukkiting.com
turbulence@ukkiting.com

http://www.bluecrush.biz
tony.carter@bluecrush.biz

http://www.boardshop.co.uk
orders@boardshop.co.uk

http://www.fcwatersports.co.uk
shop@fcwatersports.co.uk

http://www.kiteclearance.com
enquiries@kiteclearance.com

http://www.allgoodfun.com/frameset.htm
sales@allgoodfun.com

http://www.kitedemon.com
info@kitedemon.com

http://www.lushlongboards.com
info@lushlongboards.com

http://www.on-shore.co.uk
info@on-shore.co.uk

http://www.amped.co.uk
info@amped.co.uk

RGB and YUV Descriptions

2011-11-02T05:29:00.000-07:00

RGB Description:
http://en.wikipedia.org/wiki/RGB_color_model

YUV Description + how to convert:
http://en.wikipedia.org/wiki/YUV#Converting_between_Y.27UV_and_RGB

Converting between RBG and YUV, not an easy process!
http://en.wikipedia.org/wiki/YUV#Converting_between_Y.27UV_and_RGB

Luma:
http://en.wikipedia.org/wiki/Luma_(video)

Chrominance:
http://en.wikipedia.org/wiki/Chrominance

Open GL 1.1 Programming Guide

2011-11-01T09:31:00.000-07:00

Here is a copy of the Open GL 1.1 programming guide, this is the pre-shaders version of Open GL.

HTML Form:
The Red Book(HTML)

PDF Form:
The Red Book(PDF)

How to set up public/private SSH keys on your local and remote machines

2011-11-01T07:54:00.000-07:00

This post goes through the steps to set up public and private SSH keys on your local and remote machine. It assumes SSH is installed on both parties. You can use the same public key for multiple remote machines to allow you public/private key access. This allows you to turn off password access to a remote machine, thus making it more secure.

The (made up) machine's used are as follows:

Local host: MrBrightside

Remote host: murdoch

Generate ssh keys:

john@MrBrightside:~$ ssh-keygen -t rsa -b 1024 -f john_MrBrightside 

Generating public/private rsa key pair. 

Enter passphrase (empty for no passphrase): 

Enter same passphrase again: 

Your identification has been saved in john_MrBrightside. 

Your public key has been saved in john_MrBrightside.pub. 

The key fingerprint is: 

ee:da:fd:be:89:44:74:52:10:d2:90:e7:dd:14:d9:31

Create local .ssh folder and copy keys to it:

john@MrBrightside:~/.ssh$ mkdir .ssh

john@MrBrightside:~/.ssh$ chmod 700 .ssh

john@MrBrightside:~$ cp john_MrBrightside* .ssh/

john@MrBrightside:~$ cd .ssh/ 

john@MrBrightside:~/.ssh$ cp john_MrBrightside identity

Copy public key to remote host:

john@MrBrightside:~/.ssh$ scp john_MrBrightside.pub murdoch:~/ 

The authenticity of host 'murdoch (xx.xx.xx.xx)' can't be established. 

RSA key fingerprint is 48:2a:43:9c:0e:5f:91:d6:e4:fd:e6:0b:68:b3:6b:2e. 

Are you sure you want to continue connecting (yes/no)? yes 

Warning: Permanently added 'murdoch' (RSA) to the list of known hosts. 

Warning, this system will not accept password ssh logins for much longer. 

Please create and upload you ssh keys now. 

john@murdoch's password: 

john_MrBrightside.pub                                               100%  227     0.2KB/s   00:00

SSH on to remote host:

john@MrBrightside:~/.ssh$ ssh john@murdoch 

Warning, this system will not accept password ssh logins for much longer. 

Please create and upload you ssh keys now. 

john@murdoch 's password: 

Last login: Wed Oct 12 21:53:01 2005 from xx.xx.xx.xx 

Create .ssh folder on remote host:

john@murdoch:~$ mkdir .ssh 

john@murdoch:~/.ssh$   chmod 700 .ssh

Cat public key to file authorized_keys2 (which may also create it):

john@murdoch:~$ cp john_MrBrightside.pub .ssh/ 

john@murdoch:~$ cd .ssh/ 

john@murdoch:~/.ssh$ cat john_MrBrightside.pub >> authorized_keys2 

If it is created, ensure authorized_keys2 has the correct permissions:

john@murdoch:~/.ssh$ chmod 600 authorized_keys2 

.ssh folder should look like this:

john@murdoch:~/.ssh$ ls -la 

total 16 

drwx------  2 john john 4096 2005-10-28 17:36 . 

drwxr-xr-x  5 john john 4096 2005-10-28 17:35 .. 

-rw-------  1 john john  227 2005-10-28 17:36 authorized_keys2 

-rw-r--r--  1 john john  227 2005-10-28 17:35 john_MrBrightside.pub 

Now Exit and test!

john@murdoch:~/.ssh$ exit 

john@MrBrightside:~/.ssh$ ssh murdoch 

Warning, this system will not accept password ssh logins for much longer. 

Please create and upload you ssh keys now. 

Last login: Fri Oct 28 17:35:23 2005 from xx.xx.xx.xx 

john@murdoch:~$ 

If you can access the remote host without entering a password (unless the password is for your personal keyring), then it has worked. You can then switch off password entry on the remote host to make it secure.

Ubuntu aiming for phones and tablets, says Shuttleworth

2011-11-01T04:32:00.000-07:00

Source:
http://www.zdnet.co.uk/blogs/jacks-blog-10017212/ubuntu-aiming-for-phones-and-tablets-says-shuttleworth-10024687/

Mark Shuttleworth, the multi-millionaire space tourist who bankrolls the Ubuntu effort to take Linux to the mass market, says that the company is now targeting "a broader range of form factors … from the phone through the tablet to televisions", thanks to its "touch framework" and Unity user interface. Products are expected in about 18 months, though Canonical was not announcing a schedule. He said: "Delivery to market is to some extent in the hands of our partners."

Shuttleworth said Canonical's efforts were focused on version 12.04, Precise Pangolin, which is expected in April 2012. This will be the next version scheduled for what Canonical calls Long Term Support. (It will be supported for five years, until 2017.)

Although some Ubuntu geeks and "power users" have complained about Unity, Shuttleworth said it had been designed to work on a wide range of devices. He said Unity had been tested not on power users but on people with no previous experience of Ubuntu. "Over the last two years, users have gotten dramatically more productive," he said.

Shuttleworth conceded that "we will be late to market compared with some of the rich offerings out there, but we will have some advantages, and will play those cards to the best of our ability." Canonical was better able to work with manufacturers than "consortium Linuxes", and already had a services framework.

Canonical expected to make money by engaging with the hardware vendors and providing customisation. "Also, we would look to have some revenues from services." However, being controlled by a single company, Shuttleworth hoped that Ubuntu could avoid the "ultimately destructive" fragmentation of Android.

Shuttleworth said Canonical was a "viable platform" for PCs, with "in excess of 20 million users", and would be "the premier desktop interface for the next 200 million users". Manufacturers of non-PC devices such as phones, tablets and TV sets were now looking to use Ubuntu on reference devices. Also, "we will target some standard hardware that is available throughout the world," said Shuttleworth.

"I know that we have a great deal of work ahead of us…."

Shuttleworth's conference call to journalists was held in the context of the Ubuntu Developer Summit, which opened today in Florida.

@jackschofield

Stopping and Starting Samba

2011-10-28T03:19:00.001-07:00

To start, stop or restart samba use the following command:
$sudo service smbd start | stop | restart

List Mounted drives

2011-10-28T03:14:00.000-07:00

Use the command:

$ mount

This will list all the mounted drives.