Re:How to make a program to run as a daemon

Re:How to make a program to run as a daemon

[Graydon Smith]

Bubulac Angela Tatiana wrote:
>
>How can I make a program writen in C to run as a daemon?
>

Some systems supply a daemon function for running a process in the background.

#include <unistd.h>
int daemon (int nochdir, int noclose);

If the parameter nochdir is zero, the function changes the directory to "/",
otherwise it stays in the current working directory.

The noclose parameter, if zero, directs stdin, stdout, and stderr to /dev/null.

When in doubt, search your man pages for this function.

--
Graydon Smith

"I never let my schooling interfere with my education."
- Mark Twain

Re: Re:How to make a program to run as a daemon

[Glynn Clements]

Graydon Smith wrote:

> > How can I make a program writen in C to run as a daemon?
> 
> Some systems supply a daemon function for running a process in the background.
> 
> #include <unistd.h>
> int daemon (int nochdir, int noclose);

Hmm. GNU libc 2.1 provides this function (declared in unistd.h), but
doesn't document it in either a man page or the Info file.

For a portable solution, refer to chapter 13 of Stevens, or see the
archives for this list (this is the third time this question has been
asked in about a month).

-- 
Glynn Clements <glynn.clements@virgin.net>