C is a general-purpose programming language

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Is it possible to send keys to inactive window via any c/c++ library?

I'm developing a program where I need to control an inactive window by sending a couple of keys. I was wondering if there is any c/c++ library to do so on Ubuntu (and linux in general) ? I googled a ...
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2answers
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Difference between C programs and shell scripts receiving signals from fuser

I have written the shell script below for a lab in my college. It must look at a log file being upgraded frequently from another process and create a number of copies passed at invokation. Here is the ...
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Ubuntu 12.04 Desktop Out

I've been stuck with this several hours and it seems I am not making headway. I did Ctrl+Alt+F1, logged on and I got error while loading shared libraries: libstdc++.so.6: cannot open shared object ...
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Operating Systems Programming : (Bus) Inter Process Communication [closed]

I have a project in operating system programming (Linux) using c language , may anyone help me , please , This is the project description : implement a new inter-process communication method called ...
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1answer
986 views

Does Ubuntu automatically release memory allocated by a C program as the program terminates?

I have written a C program containing code allocating memory using the malloc() function. If I don't free up the memory using the free() function, will Ubuntu release it automatically?
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1answer
39 views

How to install a custom library written in C?

I want to install Stanford Portable Library on my system (Ubuntu 14.04). Can anyone please instruct me how to do it?
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2answers
241 views

Ubuntu Terminal: C program (or other solutions) to kill processes running on a specific port and start xampp [closed]

Can anyone help me? The program's objective is to kill the processes running on port 443 and to then start xampp automatically. What I've done: #include <stdio.h> #include <stdlib.h> ...
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29 views

How to run a compiled cpp file after booting up the system [duplicate]

I am using an arm v7 soc system which runs ubuntu very well. I can run my compiled cpp file (compiled with g++) perfectly from terminal by ./myproject. However i want code to start automatically ...
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14 views

conio.h header file giving an error during compiling C program in ubuntu [duplicate]

My code for a simple C program is #include<stdio.h> #include<conio.h> void main() { printf("This is demo program \n"); getch(); } when I am trying to run this c program. I am ...
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1answer
189 views

How to log bash history by editing bash source?

I'm using bash-4.3.30. I need to log all my commands history on a single file. I can do that by editing the bashrc or bash_profile but I'm not going to do that. I want to play with bash source ...
4
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1answer
163 views

How to compile programs that use term.h?

I try to compile the code below: #include <stdio.h> #include <stdlib.h> #include <unistd.h> #include <term.h> //#include "/usr/include/term.h" void clear_screen(void) { ...
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Setting up environment for Nvidia OpenGL Samples with Netbeans

As title, I would like to set up the environment for the Nvidia OpenGL Samples with Netbeans. You can find the SDK here In Netbeans I tried to choose the first one.. I gave it the directory with ...
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1answer
39 views

Abnormal behaviour of malloc() fuction?

I was playing around with alloc functions in my Ubuntu 14.04 64-bit, gcc version 4.8.2 (Ubuntu 4.8.2-19ubuntu1) and found that malloc returns memory with initializing it to zero. Which is quite weird ...
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1answer
17 views

Install Ubuntu on Drive C Only

How do I install Ubuntu on Drive C only? I backed up all my data on Drive D and I'm afraid that I might lose them all.
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2answers
55 views

GCC Fatal Error

everyone Here's my problem; So, I'm new to Ubuntu and programming and I just wanted to start with C. I created the classic "hello.c" file #include <stdio.h> main () { printf("Hello ...
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1answer
49 views

Ubuntu Kernel Source Code for NAT Firewall [closed]

In TCP Communication, when the packet is being transferred from ethernet to network(IP) layer, I want to print the data present in that packet? I am working on linux (ununtu 14.04). I got some ...
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1answer
80 views

How to run C program on 14.04?

I'm trying to run some C programs using Geany and Code::Blocks. After coding them, when I run them, a message is showed in the terminal like this: In Code::Blocks: sh: 1: /home/c program files/2: ...
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37 views

how to install GLU files in ubuntu 14.04?

I am running Ubuntu 14.04. I am trying to execute a opengl code in C in but during compilation it is not accepting glu files but my code contains it. how should I include glu files during ...
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1answer
61 views

Can't compile tiny C code which uses librsvg

I am almost complete noob in linux world and I use Ubuntu 14.04 LTS with gnome-session-fallback (compiz) under VirtualBox on Windows 8.1 machine. My goal is to use this library: ...
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86 views

CODEBLOCKS - warning: GDB: Failed to set controlling terminal: Operation not permitted

I've installed Code::Blocks 13.12 in Ubuntu 14.04 through official repositories. When I compile, everything goes OK. But when I debug, the following message is shown at the sheel: warning: GDB: ...
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1answer
31 views

Problem with compiling C code in terminal

I've been having a problem with compiling. I used the following test C code below and saved it as test.c in Home folder. #include <stdio.h> int main() { printf("Bruh!"); return 0; } ...
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0answers
129 views

Undefined reference error while using custom system call in kernel 3.19

I'm trying to import new system call in the kernel 3.19. I've followed the tutorial given here! This is my simple code to implement factorial calculation via system call. #include ...
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9 views

Move/associate window from one group to another

I'm looking for a cross linux way to move a window from one group to another group. I thought of and tried this way but it didnt work, i share a screencast showing it doesnt work. In this screencast ...
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0answers
18 views

Dissociate window from .esktop file and chane icon with XChangeProperty

This is copy paste code that can be compiled with gcc -o icon icon.c -L/usr/X11/lib -lX11 -lstdc++. It opens a new window and sets its icon with XChangeProperty on _NET_WM_ICON. This proves it works ...
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41 views

Compiling an individual kernel module (Debian/Ubuntu)

I need to modify the ELF loader's kernel implementation of an Ubuntu 14.04 distribution. Having downloaded the sources using: sudo apt-get source linux-image-$(uname -r) I ran the configuration ...
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23 views

Menubar appears on different location using GLADE3 and GTK3.0

I have program develop using glade3 and GTK3.0 and C It is working well yesterday. However today the menubar ( " File Edit View Help " ) did not appear in my application window but goes to the very ...
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1answer
74 views

How do I handle a “No such file or directory” error for a header file from make?

When compiling a source package, I got an error from make that looked like: In file included from foo.c:28:0: bar.h:23:18: fatal error: bar.h: No such file or directory #include <bar.h> ...
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1answer
49 views

Geany no support greek language

I am using Geany for C programming. My code contains some greek sentences,I set the Default Encoding to GREEK(ISO-8859-7), but when I try to execute the program the greek letters show up like this. ...
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53 views

Communication between two PC via bluetooth

My problem is, that I try to get a connection between two PC with ubuntu. I'm programing in C/C++ and use the tuturial from Cubieboard. First step i did was the command: apt-get install bluez ...
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2answers
457 views

Python.h found by locate but not by GCC

I just wrote a simple C executable to check if Python.h is working or not #include<Python.h> #include<stdio.h> int main() { printf("this is a python header file included programm\n"); ...
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1answer
50 views

Any c functions to simulate double click on file?

I have some .desktop files and am looking for c functions that make it as if user double clicked on the .desktop files. Here are my desktop files: https://www.youtube.com/watch?v=Yc19BzLTnDE Thanks
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1answer
68 views

Connecting multiple serial ports

I am trying to communicate serially using bluetooth. I have tried to send a character serially to a program1.c program and it is reading it. I would like to use the same serial port /dev/rfcomm0 so ...
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22 views

Can i use “gksu” to became root for CLI operation?

I don't care if this is unsafe, because i'm only doing it as a programming exercise, but that's what i want to do: I want to create a C program that, with the "system" command, will call dpkg and ...
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2answers
176 views

C Using Libraries Without IDE [closed]

This may be a stupid question. How do you use C libraries without an IDE? I want to only use a text editor.
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35 views

mount ecryptfs with syscall in C language

I am trying to mount an fs with ecryptfs in a program in C. But I don't manage to give to the kernel part the key int mount_crypt(char* source) { int r = -1; char opt[1024] = ...
0
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1answer
40 views

Ubuntu: “X” mark on the top-right corner of respective file icons

I am new to ubuntu/ linux. Hence, please accept my apology for asking very trivial questions. Also, I googled; but, did not find suitable answer. I installed a third party lib: Taucs (location on my ...
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1answer
34 views

Where are the headers with IOCTL numbers for ext4?

I am looking for ext4.h, or another file that contains EXT4_IOC_*. There is nothing in /usr/include or /usr/src. I have linux-headers-generic installed. I am on Kubuntu 14.10. Where are the headers? ...
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1answer
223 views

fatal error: linux/err.h: No such file or directory [duplicate]

What package should install for this header (err.h) is available? I need this library (linux/err.h) to compile a proprietary driver (kernel module) in Ubuntu 14.04 Server/Desktop 64bits
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1answer
509 views

Lightweight C/C++ editor with code completion and debugging

Ever since the debugger plugin for geany stopped working (see below), I am looking for an editor for C/C++ source files with the following features: Code completion (i.e., Intellisense-like ...
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0answers
109 views

How to get paths for default theme icons folders?

I have a desktop file, for Icon i set it to myIconName. Now I have multiple sized PNGs for my icon. I need to find the paths to the default theme icon folders, cross-OS-Linux solution, so I can drop ...
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0answers
53 views

Fullscreen Detection Algorithm for lockscreen/screensaver

I'm working on a cross linux fullscreen detection algorithm, for use in detecting lock screen and screensaver. This is what I have so far: Check if _NET_WM_STATE_FULLSCREEN is supported, if it is ...
0
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1answer
256 views

Using mysql in C programming [closed]

I installed ubuntu on a virtual machine.There,I installed mysql server(sudo apt-get install mysql-server) .This worked, because I could acces mysql-u root -p password. After that,I did : sudo apt-get ...
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0answers
79 views

Creating SHA-512 password with function crypt

I want to create an encrypted password in a C program with the function crypt with the SHA-2 based hashing algorithms that are supposed to be included in the GNU C Library used by almost all Linux ...
2
votes
1answer
94 views

Gnuplot - Save result

I create a graph that changes each second using gnuplot.Now, I want to save this graph as gif or png file when my program finishes. How can I do? My C code is below FILE *pipe = popen("gnuplot ...
2
votes
1answer
68 views

GNU C - Signals never arrive to the handler

I'm working on a university project which needs to be written in GNU C and run on Ubuntu server. My primary OS at home is Ubuntu 14.04 on my PC. The project is about multi thread programming and I ...
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0answers
18 views

How to Terminate the Child process using ISR from parent process?

I wanted to create a C program to terminate a child process after specific time period (alarm()) using user defined ISR(Interrupt Service Routine) of parent process. How to do it?
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After my Disc partition, when i try to open my C: disc i get this message. Help please! [duplicate]

Error mounting /dev/sda4 at /media/santiago/7E460D8D460D46FD: Command-line `mount -t "ntfs" -o "uhelper=udisks2,nodev,nosuid,uid=1000,gid=1000,dmask=0077,fmask=0177" "/dev/sda4" ...
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1answer
71 views

How do I open C libraries and functions implementations?

I am having a problem that I cannot browse the header files /libraries to get the implementation of the C functions like mssget, msgsnd, shmat etc. How should I open these files?
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152 views

Header file for struct proc_dir_entry

I'm writing a firewall for the Linux kernel and I'm using the proc_dir_entry data structure (which I've found in the tutorial I'm currently reading). My firewall is conceived as a kernel module but ...
0
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1answer
40 views

Not able to include sqlite3 in c program

I installed libsqlite3-dev from ubuntu software center and after the installation, i found the sqlite3.h file in usr/include folder. There was no error in including that header file, but i am not able ...