Discuss Daemon fun in the BSD Help forum on Dev Shed. Daemon fun BSD Help forum discussing all BSD based operating systems including FreeBSD, OpenBSD, NetBSD, and more. BSD refers to the distribution of UNIX originally developed by the University of California at Berkeley.
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Daemon fun
Ok, so I've been playing aroud with BSD for a little bit, and would like to start modifying some stuff so it'll run on an embedded device.
Can anyone point me to a good resource to get me going on how to strip down a daemon so its as lean as possible. I know that's kinda vague, but I'm kinda new
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Read the pages for:
man 3 daemon
The following code prints "BOO!" every 60 seconds to your terminal.
Code:
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
int main(void) {
daemon(0, 1);
while (1) {
printf("BOO!\n");
sleep(60);
}
return 0;
}
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Quote:
Originally Posted by stevengs
Hi Scorpions,
can you elaborate on that a bit please? Who's computers and what types of daemons do you mean?
Thanks
-STeven
Try writing your own daemon on a computer that is owned by an ISP or a college network. It doesn't really matter what the daemon does, the sysadmins will kill the daemon first and ask questions later. Most good sysadmins that I know hate seeing any long running processes that they don't know anything about. Heck, I would probably do that myself, if I see a mysterious process that has been running for a few days on my computer. Wouldn't you?
The solution to the original poster would be: If you're going to run a long running daemon on someone else's computer, let the sysadmins know in advance .
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