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Qt Tutorial

This article is a introductory tutorial for the Qt language.

Qt is a cross-platform application framework that is widely used for developing application software with a graphical user interface (GUI) (in which cases Qt is classified as a widget toolkit), and also used for developing non-GUI programs such as command-line tools and consoles for servers.

Qt uses standard C++ but makes extensive use of a special code generator (called the Meta Object Compiler, or moc) together with several macros to enrich the language. Qt can also be used in several other programming languages via language bindings. It runs on the major desktop platforms and some of the mobile platforms. It has extensive internationalization support. Non-GUI features include SQL database access, XML parsing, thread management, network support, and a unified cross-platform application programming interface (API) for file handling.

[Extracted from the Wikipedia]

SLOTS

In QT a slot is the receiver from a signal or an a event (like mouse click on a button)

To create a slot for a widget in QT designer:

Later you will see a new function, this is an slot.

When you click the button the slot will be activated and the code executes.

SIGNALS

A signal is a special callback to call a defined slot. You can define signals between dialogs:

The first is to create a new slot, for example textValue (defined in the receiver .h file)

Later write this method in the .cpp receiver file

The next step is to define the sender signal in the .h

Now in the sender dialog define the caller slot

In this slot we will use "emit" to send the signal

To link the receiver slot and the sender signal we must to add a connect to the dialog object.

Resize and layout

To make a good layout and a good resizing:

Use the "spacer" and use the horizontal layout to align widgets.

Later we need an a vertical layout to finish the align.

By default the centralWidget don't have a layout

As our application main layout is vertical we select it for MainWindow.

Now uses the vercial layout

The app is well aligned

To have a good resizing policy we must select "sizePolicy" to Expanding

QToolbar

The designer is very limited on the toolbar management, and we must to code:

Remember to delete all objects in the dialog destructor.

New modal dialog

We created a new dialog, but... ¿How show it?

Define the dialog (modal) and use exec()

QT resource file

The first is to create a new resource file

Add: QT -> QT resource file

It will be in the Resources project section

Later is possible to add a file to it

OTPNitro project

OTP Nitro

About: OTP Nitro is a secure One Time Pad implementation to use on computers or as assistant on manual operations.

You can download it here:

• Source
• Binary

CLI Usage

• Generate OTP pages on the "TST" book:

  C:\> .\otpnitro.exe -g -r TST OTP Nitro 0.1 ------------- [I] Generating OTP: TST. OK

• Encrypt message:

  C:\> otpnitro.exe -e -s CPX -r TST -m "ESTO ES UNA PRUEBA" OTP Nitro 0.1 ------------- [I] Encrypted msg: TST DE CPX 11 = RHJQG AKZQV RUMKV IYHJY YQYVT =

• Decrypt message:

  C:\> otpnitro.exe -d -p 11 -s CPX -r TST -m "RHJQG AKZQV RUMKV IYHJY YQYVT" OTP Nitro 0.1 ------------- [I] Decrypted msg: TST DE CPX 11 = ESTO ES UNA PRUEBA =

• Decrypt formated message:

  C:\> otpnitro.exe -d -f "TST DE CPX 11 = RHJQG AKZQV RUMKV IYHJY YQYVT =" OTP Nitro 0.1 ------------- [I] Decrypted msg: TST DE CPX 11 = ESTO ES UNA PRUEBA =

• Burn a page:

  C:\> otpnitro.exe -b -p 11 -r TST OTP Nitro 0.1 ------------- [I] Burn page 11. OK

GUI Usage

1. Introduction OTPNITRO is a secure One Time Pad implementation to use on computers or as assistant on manual operation.

2. Concepts In this chapter we describe the basic concepts to use in this app.

   1. **Books** The cipher data is stored on books, every book have "pages" where the data is generated. The books usually have very short names, from 3 to 5 characters. 2. **Pages** The pages store the cipher to crypt and decrypt, every page is unique and after use it you must burn the used page. 3. **From field** The recipient is anyone who have the same book than you used to crypt the message and you must identify yourself as sender in the from field. The IDs usually have very short names, from 3 to 5 characters. 4. **Formatted message** To have a send/receive standar format, please use this one: <BOOK> DE <FROM> <PAGE> = <MESSAGE> =

Example:

TST DE CPX 2 = QSZBO IGFIY NVTVY BFXCB KROAP =

1. Operations In this chapter we describe the basic operations.

   1. **Generate a book** The first operation is generate a book, to do this, please use the menu: Books -> Generate Book or press CTRL + G keys. 2. **Crypt** To crypt a message you must provide a valid book in the selector, an arbitrary ID in the form field and a message unformated to crypt. The page will be selected automatically. Later you must use the menu: Crypto -> Crypt or press CTRL + E keys. 3. **Decrypt** To decrypt a message you can provide a formatted message, in this case you only must select the "Formatted msg" option. If you dont have the format, you can enter all fields manually. Later you must use the menu: Crypto -> Decrypt or press CTRL + D keys. 4. **Burn page** It is recommended to burn the page after use, but if you want to do this manually (or later) you can use the menu: Crypto -> Burn page or press CTRL + B keys. 5. **Refresh books** If you modify or delete any book in the filesystem you must refresh the books in the app. To do that you can use the menu: Crypto -> Refresh books or press CTRL + R keys.

2. Internals In this chapter we describe internal operations, know bugs or missing features.

   1. **Settings** The settings/config file must be located on %APPDATA%/.otpnitro/otpnitro.ini or $HOME/.otpnitro/otpnitro.ini 2. **Book storing** By default the books are stored on %APPDATA%/.otpnitro/PAGES or $HOME/.otpnitro/PAGES (this can be changed in the config file) 3. **Max pages parameter** Is the number of pages generated for book. (this value limits the number of messages to be crypted on a book) 4. **Max chars parameter** Is the number of characters generated for page. (this value limits the number of text to be crypted) 5. **Project URL** For more information, updates, etc. you can visit the project [homepage](https://code.haibane.net/crypto/otpnitro).

3. License This program is under the GPLv3 license.

4. Authors * @capi_x <capi_x@haibane.net>

5. Acknowledges * @Mario_vilas - Thanks for GUI and crypto testing. * @sha0coder - Thanks for CLI and GUI testing. * @AloneInTheShell - Thanks for CLI and LIB testing.

CLI compile guide
Compile:

1. Generic / Debian:

   make

2. FreeBSD:

   CXX=clang++ gmake

Install:

1. Generic:

   make install

2. FreeBSD:

   CXX=clang++ gmake freebsd-cli

3. Debian:

   make debian-cli

GUI compile guide

First you must install the U++ enviroment. Once installed you must add the otpnitrogui project. (Windows users also must install MinGW)

Next you must put the otpnitro path in the package textbox.

Click on the output mode button.

Fill all settings as in the image.

Next select "Build methods" menu

Again fill all options and add the otpnitro path to "lib directories"

Ok, you can build all now pressing the F7 key.

Install:

1. Generic:

   make install

2. FreeBSD:

   CXX=clang++ gmake freebsd

3. Debian:

   make debian

Bindings

OTP Nitro supports bindings to other languages using SWIG

1. Python

   1. **Compile**: make bindings 2. **Install**: make python-otpnitro ( Install the .deb or .tzx package ) 3. **Usage** Once installed: >> import otpnitro >> page = otpnitro.Page() >> print page.list()

API

The API documentation is located here:

• HTML
• PDF

Features

• Generate pages and books
• Encrypt messages
• Decrypt messages
• Burn pages (secure delete)
• Automatic text format (header)
• GUI using Ultimate++
• API and library
• Bindings

TODO

• Automatic file parse daemon
• Print pages

License

OTP Nitro is released under the GPLv3 license.

z/OS Install and configure RMF Distributed Data Server

Configure RMF Distributed Data Server:

PERMIT BPX.DAEMON CLASS(FACILITY) ID(START2) ACCESS(READ) RDEFINE APPL GPMSERVE UACC(READ) RDEFINE PROGRAM GPM* ADDMEM('SYS1.SERBLINK'//NOPADCHK) UACC(READ) RDEFINE PROGRAM ERB* ADDMEM('SYS1.SERBLINK'//NOPADCHK) UACC(READ) RDEFINE PROGRAM CEEBINIT ADDMEM('CEE.SCEERUN'//NOPADCHK) UACC(READ) RDEFINE PROGRAM IEEMB878 ADDMEM('SYS1.LINKLIB'//NOPADCHK) UACC(READ) RDEFINE PROGRAM GPMDDSRV ADDMEM('SYS1.SERBLINK'//NOPADCHK) UACC(READ) RDEFINE PROGRAM ADME000O ADDMEM('GDDM.SADMMOD'//NOPADCHK) UACC(READ) SETROPTS WHEN(PROGRAM) REFRESH

START DDS, RMF and RMFGAT (commands in console or SDSF panel)

/S GPMSERVE /S RMF /F RMF,START III

Now download and install the RMF pm for Windows or Linux.

Once installed, execute and connect to your z/OS system. You must view something similar to that:

z/OS SUBMIT JOBS in FTP

List datasets...

ftp> dir 200 Port request OK. 125 List started OK Name VV.MM Created Changed Size Init Mod Id HELLO 01.01 2013/10/22 2013/10/24 22:06 13 13 1 CAPI HELLO2 01.02 2013/10/22 2013/10/24 22:06 13 12 5 CAPI LISTDS 01.02 2013/10/22 2013/10/24 22:07 15 10 8 CAPI MSGCON 01.01 2013/10/22 2013/10/24 22:07 8 8 1 CAPI 250 List completed successfully.

Now change to JES2 mode

ftp> QUOTE SITE FILETYPE=JES 200 SITE command was accepted

Now (in JES mode) when we GET a dataset, really we make a SUBMIT.

ftp> GET 'CAPI.JCL.TEST(HELLO)' 200 Port request OK. 125-Submitting job 'CAPI.JCL.TEST(HELLO)' FIXrecfm 80 125 When JOB00865 is done, will retrieve its output

z/OS CLIST tutorial (DRAFT) CLIST

1. Language definition:

1.0 Comments

/* THIS IS A COMMENT */

1.1 Header

PROC 0 /* PROC [NUM PARAMETERS] */ PROC 1 XXXXXXXX /* New rutine PARAMETER1 = XXXXXXXX */

1.2 Variables

PROC 1 INPUT SET VARIABLE = &INPUT SET STRING = HELLO WORLD

1.3 Conditional

IF &VARIALBE = TEST THEN + WRITE TEST ELSE IF &VARIABLE = PROD THEN + WRITE PROD ELSE IF &VARIABLE ¬= NEGA THEN + WRITE OTHR ELSE DO + WRITE ERR1 EXIT END

1.4 While

SET WHILE = &STR(ABC) DO UNTIL &WHILE = &STR(ABC) WHILE (&COUNT<5) SET &COUNT = &COUNT + 1 END

1.5 Strings

IF &SUBSTR(1:4,&SYSUID) ¬= TEST AND + &SUBSTR(1:3,&SYSUID) ¬= DEV AND THEN DO WRITE "NOT ALLOWED" END

1.6 Execute commands

LISTUSER SELECT PGM(ISRUDL) PARM(ISRUDLP) SCRNAME(DSLIST)

1.7 ISPF panels

ISPEXEC SELECT PANEL(XXX)

1. Execute a CLIST

2.0 TSO EXEC

TSO EXEC 'DATASET.CLIST(PROGRAM)'

2.1 Alloc to SYSPROC

TSO ALLOC FILE(SYSPROC) DATASET('DATASET.CLIST') SHR REUSE TSO %PROGRAM

z/OS create user (DRAFT) RACF panel parameters Change Account (ACCTNUM) ACCT#________________________________ Change Logon Procedure Name (PROC) ISPFPROC Change Command (COMMAND) ISPF____________________________________ User permits TSO PE ACCT# CLASS(ACCTNUM) ID(WEBSRV) ACCESS(READ) TSO PE ACCT CLASS(TSOAUTH) ID(WEBSRV) ACCESS(READ) TSO PE JCL CLASS(TSOAUTH) ID(WEBSRV) ACCESS(READ) TSO PE OPER CLASS(TSOAUTH) ID(WEBSRV) ACCESS(READ)