hey,
exec("foo > /some/file 2>&1 &");
or register_shut_down("whatever");
incase it's a C program that does the math, you could
make it a daemon like thing: and do that math in the
main :-)
#include <sys/types.h>
#include <sys/time.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <signal.h>
#include <unistd.h>
// copyright 2001, mukul sabharwal [[EMAIL PROTECTED]]
void get_into_background(void)
{
pid_t pid;
// all the familiar kitchenware!
pid = fork();
if(pid != 0)
exit(0);
setsid(); // sets out process and group id as
part of the session
// but only if the process ain't a
leader, hehe
close(STDIN_FILENO);
close(STDOUT_FILENO);
close(STDERR_FILENO);
// the program shouldn't acquire a terminal
signal(SIGHUP, SIG_IGN); // incase we get
HUP'd, ignore!
pid = fork();
if(pid != 0)
exit(0);
chdir("/towhere");
umask(0);
}
void the_actual_exec(void)
{
char buffer[1024];
char *args[3];
args[0] = "ls";
args[1] = "-F";
args[2] = 0;
execv("/bin/ls", args); // 0 terminated array
perror("execv"); // as exec dont return
nutting
// going past exec is an
ERROR
}
int main(int argc, char **argv)
{
get_into_background();
the_actual_exec();
return 0;
}
=====
To find out more about me : http://www.geocities.com/mimodit
My bookmarks are available @ http://mukul.free.fr
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