C is a general-purpose computer programming language used for operating systems, games and other high performance work and is clearly distinct from C++. It was developed in 1972 by Dennis Ritchie for use with the Unix operating system.

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make a log file

Is there any way to make a log file for maintaining some data in /var/log/ with the help of some library function or system call in c language in linux. And I also want to know the standards that we ...
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2answers
354 views

Is there a glibc API that can find the default handing application for a MIME type on linux?

I want to find the default handling application in my C program. Is there a C API with same functionality as xdg-mime query default mime-type on Linux?
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votes
1answer
251 views

Executing a shared library

Some shared libraries provide an output when called from the command line as if they were executables. For example: $ /lib/libc.so.6 GNU C Library stable release version 2.13, by Roland McGrath et ...
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2answers
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Implementing a Unix shell in C: Logging

I am currently working on implementing my own UNIX shell in C. The basis of the shell is working, you could find the source code here. Right now my next task is to implement a logging feature for the ...
8
votes
4answers
2k views

Why should a child of a vfork or fork call _exit() instead of exit()?

From the man page of vfork(): vfork() differs from fork() in that the parent is suspended until the child makes a call to execve(2) or _exit(2). The child shares all memory with its ...
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4answers
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After fork(), where does the child begin its execution?

I'm trying to learn UNIX programming and came across a question regarding fork(). I understand that fork() creates an identical process of the currently running process, but where does it start? For ...
1
vote
1answer
268 views

Recording and charting boot process information in Linux

I need to write a command line tool that records the boot process information in Linux, and then renders it in a chart format (a textual chart would do). How do I programmatically obtain the this boot ...
6
votes
5answers
3k views

Develop / Debug C / C++ on Ubuntu?

What's the best IDE for developing C / C++ on Ubuntu? I tried installing Eclipse but it seems like I need the eclipse-cdt package also. The problem is there is no such package, at least for Lucid. ...
3
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1answer
4k views

Error when using stat, errno=2

The case is as this, I create many files, and after the file generation, I use stat to get the all files info under the directory. The purpose is to purge all the files which are old than the ...
6
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1answer
3k views

How can i know which unistd.h file is loaded?

I have several unistd.h files in my Ubuntu Linux. I've one on: /usr/include/asm/unistd.h This file has this directives: # ifdef __i386__ # include "unistd_32.h" # else # include "unistd_64.h" # ...
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votes
10answers
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Development environment for C

Looking for ideas on setting up a convenient and productive development environment for C development. I found C editing with Vim very helpful but I would like to get a wider sampling of suggestions.