Hans-Georg Bork: I have already tried the S99my_serverd change, but it doesnt work.
J.A. Bezemer: I have tried the ./yourprog </dev/null >/dev/null 2>/dev/null and the program dies, I cant see with a ps ax Clare Jarvis: The program should listen to a port, and a client program will send a string, and this string will be used by an external program. The program is made in C. Here is the code: http://rafb.net/paste/results/vkgCRD46.html and here too: http://mezcal.fi-p.unam.mx/~sergio/programas/say_serverd.c The daemonize function is from a tutorial of how to make a daemon. (http://www.enderunix.org/docs/eng/daemon.php ) Thanks for your help Sincerely, Sergio Cuéllar Valdés On Thu, 13 Jan 2005 19:08:27 -0600 (CST), Clare Jarvis <[EMAIL PROTECTED]> wrote: > You have not describe the "real action", nor told us the language > you are using. > > to have a successfull daemon you have to fork() twice. Once to > disassociate your program from the terminial and another to disassociate > from the process group. I suspect that you are doing this okay. > > To act as a "server" when monitoring a port you must > > bindi() the port > ithe do a listen() > > enter a loop that does the > > select() > > tests to see if it is a connection request. If so the accept the > connection > > tests to see if data is coming from a connected client and if so > then take "real action" remember that you might have to fflush() > > continue the loop > > Does you program fork() to do its real action? > > Thats about all for now. > > Sincerely, > > Clare Jarvis > > > > Hi, > > I hope you can help me. I have made a program that will be listening > > to a port. I want to start the program every time the machine boots, > > so I created the script to use in init.d and Ive also created the > > symlinks. > > > > The machine boots, and the programs starts. I use ps ax and I can see > > that the program is running, I use netstat -an, and I can see the port > > is open. When I use a client program, the server doesnt answer. I use > > strace -p <PID_of_SERVER>, and I see that the server is receiving the > > data, the program also saves the data in a log file. But the real > > action is not performed. > > > > If I restart the program by hand, /etc/init.d/my_serverd restart, and > > I use again the client program, the server works fine. I really dont > > have any idea, what´s happening. > > > > > > Does anyone have any idea why this would occur? > > > > Thanks, > > > > Sergio Cuéllar Valdés > > > > -- > > "Meine Hoffnung soll mich leiten > > Durch die Tage ohne Dich > > Und die Liebe soll mich tragen > > Wenn der Schmerz die Hoffnung bricht" > > > > > > > Clare Jarvis > President, Jarvis Computer Software > PO Box 1264 > Winona MN 55987 > (507) 454 2575 > > -- "Meine Hoffnung soll mich leiten Durch die Tage ohne Dich Und die Liebe soll mich tragen Wenn der Schmerz die Hoffnung bricht"
