I am trying to write a program that will send a packet to a server as a different IP address so I can test my firewall rules as I only have access to a couple of machines:
Code:
int my_socket;
struct sockaddr_in sin;
[code]....
I use mandriva 2010.2 on my web server, and i use nginx for the web server. how to change nginx version header.? it's already installed
View 3 Replies View RelatedI'm trying to use TCM (Toolkit for Conceptual Modeling) but the font used by the application for menus window headers & such is very hard to read. I can change the font used for fields within the application in the configuration file, but there doesn't seem to be a way to change the fonts for the other fonts.
Is there a way to do this through gnome or Ubuntu?
I want to use kmalloc() to allocate contiguous memory on ram. But I can not seem to find the required header file(s) like linux/slab.h. I suppose I do not have the required library and I certainly do not know what and where to look.
View 14 Replies View RelatedI am having trouble getting some code to work. It takes an input file (csv) and converts it to an XLS. The problem is that I can't seem to get a header to be printed first...
Code:
use Spreadsheet::WriteExcel;
my $input = $ARGV[0];
[code]...
I want to get files header as much as possible which are mostly used so how can i get jpeg file header using C ?
If any other headers of MS Office is possible for U.
I have been a predominant Windows user for a long time but shifted to Ubuntu recently. I was just trying out a few basic C functions when i realized that the "conio.h" header file isn't included in the libraries and therefore i was unable to use the "clrscr()" function.
I downloaded a tarball which contained the necessary library and header files including conio.h. Once extracted, i specified the location and included in the program as " #include "path to the header file" ".
I still didn't call the "clrscr()" function, and it compiled successfully. Next i edited the program to call that function and it gave the following error...
How i can add new libraries in the future?
I have 3 files: main.c, mylib.h, mylib.c Now I want to put mylib.h into : /usr/include/mydir/mylib.h And I create a static library: libmylib.a, and put into the folder: /usr/lib/mydir/libmylib.a Then I compile: $ gcc -o main main.c Then I got linking error
Code:
main.c:(.text+0x3e): undefined reference to `extract_v1'
main.c:(.text+0x7b): undefined reference to `modify_v1'
collect2: ld returned 1 exit status
So I try with -l options: $ gcc -o main main.c -lmylib I still got error
Code:
/usr/bin/ld: cannot find -lmylib
collect2: ld returned 1 exit status
Any idea about this?
Also, I want to ask about: how to create my own header and library to put into /usr/include/mylib/ and /usr/lib/mylib/, so when I use function in my program, the compiler will automatically link to library. It's like when you #include <stdio.h>, and you compile: $ gcc -o program program.c, you don't need to specify any linking folder or library.
i am trying to do something very simple like a header and a footer for my first perl programs, what iam trying to do is that when i create a file in vim: lets say hello.pl , i would like that file to have already this in its header:
#!/usr/bin/perl
and this on the footer:
print "
";
so that i dont have to type everytime #!/usr etc i tried to do it this way but i get weird vim errors: header is a file that contains the header and footer $ vim hello.pl;header > is there another way to do it as a function in bash or some other one liner command?
New to programming having issues reference header files.
Not sure how to put the fomula in headers below:
Program
using namespace std;
I have written a simple library and ended up with a .so file. I have a header file from writing the code that describes how to use the functions in the source code I have written. I think this .h files needs to be available to other programs that access this code.
I have seen lots of tutorials on how to copy the .so file to the relevant directories and make links with the version number. What I can't find is where to put the header file so that any programs I write to use my new library can access the header.
Hope this makes sense. For example, I might use <stdio.h> normally, I will need to access <mylibrary.h> once mylibrary.so is loaded (as far as I understand!)
It's weird, I've been using C compilers for embedded processors over ten years now and never given a second thought to how libraries and headers work behind the scenes!
I am new to ubuntu.I have done some programming in c++ under windows using graphics.h header file.I want to implement my programs in ubuntu.How can i do this?I am writing a program.
View 4 Replies View RelatedSay I have a directory structure:
And other.c has:
How do I setup the CMakeFiles.txt files in each directory, so the executable "program" (from program.c) is created.
Currently I get the error:
I installed Codeblocks and build some programs, but I have two questions:1. Where are my header files placed, since I don't know where codeblocks is installed. Soemetimes I have to remove header file extension (.h) to be able to compile some source. I use gcc as setting for codeblocks to compile and build programs.2. Plugins for Codeblocks can be installed, but when browse codeblocks's wiki I can't find download links neither developer pages
View 3 Replies View Relatedi got a sample.c which generate a linked list for sorting according to the number generated. then i want to split the sorting function into a header file. and it looks like the sort function in the header file could not access the linked list in the main. the error is dereferencing pointer to incomplete type
sample.c
Code:
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
[code]...
how I can do a ftp connection putting the user and passwd as default?
View 6 Replies View RelatedI need to know the header file used at 'c' to support openoffice writter at REDHAT4. I plan to write a c++ program for something like spellbee game. so instead of giving a txtfile which has a list of words as a source for the game I decided to use some header file. My assumptions are: Since the redhat4 is written through the "C" language and as well as the openoffice writter which is a supporting package at this os too might have the linker right. At openoffice writter we have the spellcheck feature which might had a source from where it checks the words whenever we type something at openoffice writer. So is it possible to use those header file or linkage source at my c++ spellbee game program instead off creating the list about few bunch of words.
View 1 Replies View RelatedBelow are the header files and the program:
using namespace std:
I'm a complete linux beginner and currently have the following board that I am playing around with.the main chip onboard is an atmel arm9 core with a debian style distribution pre-installed. I have just updated the factory kernel to 2.6.30 as I was told this had an inbuilt GPIO driver? I am trying to interface the output pins on the header of the GESBC-9260 to the linux distribution. i.e. I would initially like to write a c file that did something like toggle an output pin, which I can then connect upto an led and see this flash. However I don't really have a clue where to start. Hopefully someone could point me in the right direction?
View 1 Replies View Relatedi am a new programer in c i have write a simple app and i have a problem with combiling my program include one header file and 2 c
fun.h
#include<stdio.h>
void f();
/******EOF*******/
fun.c
#include"fun.h"
void f(){
[Code].....
I have C++ source code(*.cpp) files that expects it's header files in System's include folder which is/usr/include.The cpp files has include lines like this:
Code:
#include <some.h>
#include <another.h>
[code]...
where can i get socket.h header file? will copy pasting this header file in 'incl' directory allow me to use it in the my program?
View 1 Replies View RelatedAs you know, the length of "Options" field in TCP header is floating. It may be from 0 to 40 bytes. Is there any (simple) way to find it or to send data with TCP headers of fixed length?
View 8 Replies View RelatedWhen is it good to use separate translation units and object files and link them into the main C program, and when is it good to include the header files in the main C program? I don't understand if most people include header files or if most people just link in object files and use their contents in the main program. It's sort of a simple question, but it's confusing to me and that's why I need help with it. I sort of don't understand the difference, or if there's really no difference other than the way the final result is achieved, which way is better or preferred, etc...
For example:
Code:
or:
Code:
Simple explanation of the difference? or which one is preferred or better? I've read a little on the ELF format... so is there no difference in the end result? It's just a matter of preference or necessity, and where the information is to begin with?
I am having a lot of problems trying to change one string by another using sed: the sentence is like this:
sed -i 's/KERNEL=="tty[A-Z]*", NAME="%k", GROUP="uucp", MODE="0660"/KERNEL=="tty[A-Z]*", NAME="%k", GROUP="uucp", MODE="0666"/g' 50-udev.rules
it is just to fing the line with:
KERNEL=="tty[A-Z]*", NAME="%k", GROUP="uucp", MODE="0660"
[code]....
I had a doubt about the role of the evironment set in the execve() function of the C languange.
If I run something like
Code:
#include <stdio.h>
#include <unistd.h>
int main(void) {
[Code]....
What is the utility of setting the environment in the execve()?
Is there another way (not using chdir()) of changing the current directory before running exec()?
I am about to move my scripts to the next generation level, so I need some help I am stuck in varying my variable names in a loop. For example:
for user in ben dorothy mike pat
do
[ -r /home/$user ] && let "$user"check=1 || let "$user"check=0
[code]...
I am using glib version 1.2.10.I came to know from somewhere that "pthread_attr_setaffinity_np(3)" does not work on this version for POSIX threads. Following error was coming:(.text+0x112): undefined reference to `pthread_attr_setaffinity_np'collect2: ld returned 1 exit status.All I want to do is to run 2 threads on two different processors. I cannot change the glib version.
View 3 Replies View RelatedHow to change string variable in awk? for example, I parse with awk script text file named some_name_with_extension.txt
I want to print only some_name in my script
Code:
....
varCompName = FILENAME
print varCompName
How to put not all symbols from FILENAME to variable?
[Code].....
I'm trying to change a line of a bunch of xml files (more than 800).What I want isto change this line:
Code:
<variable name="reliability" size="1">96</variable>
to
[code]...
